[Updated] Combating Content ID Blocks on YouTube with Knowledge

[Updated] Combating Content ID Blocks on YouTube with Knowledge

Steven Lv12

Combating Content ID Blocks on YouTube with Knowledge

YouTube Copyright Claims and How to Deal with a Strike?

Richard Bennett

Nov 01, 2022• Proven solutions

0

YouTube copyright rules might not always seem fair, but they are in place for a reason. If your YouTube videos get flagged for copyright issues relating to the background music or film clips it can be frustrating, especially if you receive a copyright notice for using royalty-free music you have a license for. Rather than feeling as though your creativity is being restrained, read this article to better understand the reasons copyright issues come up and what can be done to resolve them. Disputing copyright claims is something that any YouTuber can do.

Part 1: What is a Content ID Claim and Why Have I Received One?

YouTube copyright issues often come up as a result of content ID claims. This will prompt Google support to deliver a copyright notice to your account. Content ID claims are generally made against content that contains material that should not be available on YouTube. Claims are often issued if you don’t own the music, movie clips, TV clips, express rights to showcase cut scenes in video games, or other copyrighted media.

If you happen to see that a video has been muted or taken down you can visit the copyright notices section of your video manager to learn more. In this section you will learn more about what will be done as a result of the content ID claim.

Generally, a content ID claim does not put a YouTube channel in any kind of trouble. What usually happens is that the video is removed, you lose the ability to earn ad revenue from it, or the sound is muted so the copyrighted music no longer plays.

In some cases, the owner of the copyrighted content (usually musical artists) may choose to allow you to keep your video up in exchange for running their ads.

If you have received copyright claims there are ways that you can get your content put back up in its original condition.

First, you could purchase the rights to use the copyrighted media after your video has been flagged or try getting express permission from the content creator to use aspects of their content in your own original video.

Sometimes, your videos may be flagged even though you’ve already purchased the license for the copyrighted music, images or clips you are using.

YouTube’s robots automatically scan through the database of audio and visual content that is put up by copyright owners. Any video that has been uploaded to YouTube with this copyrighted content will receive a third-party copyright notice. Because flagging happens automatically it often affects creators who have licenses for the royalty-free music, or other copyrighted material, they are using.

The good news is that this same level of protection will ensure that your own original content can also be protected from reuse if you register it.

In order to dispute a copyright claim on your video the first thing that you will need is some proof that you have purchased the rights to the music or other content that is being reused in your video. If you have a direct link to the online license agreement this can help with the dispute process. Purchasing a license online for royalty-free music or other content is usually fairly simple and with a PDF license certificate you can quickly dispute copyright content ID claims.

You can upload your license document to the file sharing system Dropbox to make the content public for YouTube admins to check over. Heading over to your video manager on YouTube and sending a message link with the dispute and link to your license will make sure that your explanation is heard. Sending the license, written permission, or a link to the legal license will result in YouTube reinstating your video.

Most of the time the only information that you need to use is where the license was purchased as well as the link to where the copyright license document can be accessed.

After submitting your dispute YouTube admins will often take a few business days to get back to you with an answer. There is no risk involved in disputing a copyright claim; your video has already been flagged. In the worst case scenario, your video will remain flagged.

Usually with the help of an official license or direct permission from the content creator you can file a dispute with YouTube and receive an answer. If the dispute process is successful your video will be reinstated to the original uploaded version without blocked sound or content.

via GIPHY

author avatar

Richard Bennett

Richard Bennett is a writer and a lover of all things video.

Follow @Richard Bennett

Richard Bennett

Nov 01, 2022• Proven solutions

0

YouTube copyright rules might not always seem fair, but they are in place for a reason. If your YouTube videos get flagged for copyright issues relating to the background music or film clips it can be frustrating, especially if you receive a copyright notice for using royalty-free music you have a license for. Rather than feeling as though your creativity is being restrained, read this article to better understand the reasons copyright issues come up and what can be done to resolve them. Disputing copyright claims is something that any YouTuber can do.

Part 1: What is a Content ID Claim and Why Have I Received One?

YouTube copyright issues often come up as a result of content ID claims. This will prompt Google support to deliver a copyright notice to your account. Content ID claims are generally made against content that contains material that should not be available on YouTube. Claims are often issued if you don’t own the music, movie clips, TV clips, express rights to showcase cut scenes in video games, or other copyrighted media.

If you happen to see that a video has been muted or taken down you can visit the copyright notices section of your video manager to learn more. In this section you will learn more about what will be done as a result of the content ID claim.

Generally, a content ID claim does not put a YouTube channel in any kind of trouble. What usually happens is that the video is removed, you lose the ability to earn ad revenue from it, or the sound is muted so the copyrighted music no longer plays.

In some cases, the owner of the copyrighted content (usually musical artists) may choose to allow you to keep your video up in exchange for running their ads.

If you have received copyright claims there are ways that you can get your content put back up in its original condition.

First, you could purchase the rights to use the copyrighted media after your video has been flagged or try getting express permission from the content creator to use aspects of their content in your own original video.

Sometimes, your videos may be flagged even though you’ve already purchased the license for the copyrighted music, images or clips you are using.

YouTube’s robots automatically scan through the database of audio and visual content that is put up by copyright owners. Any video that has been uploaded to YouTube with this copyrighted content will receive a third-party copyright notice. Because flagging happens automatically it often affects creators who have licenses for the royalty-free music, or other copyrighted material, they are using.

The good news is that this same level of protection will ensure that your own original content can also be protected from reuse if you register it.

In order to dispute a copyright claim on your video the first thing that you will need is some proof that you have purchased the rights to the music or other content that is being reused in your video. If you have a direct link to the online license agreement this can help with the dispute process. Purchasing a license online for royalty-free music or other content is usually fairly simple and with a PDF license certificate you can quickly dispute copyright content ID claims.

You can upload your license document to the file sharing system Dropbox to make the content public for YouTube admins to check over. Heading over to your video manager on YouTube and sending a message link with the dispute and link to your license will make sure that your explanation is heard. Sending the license, written permission, or a link to the legal license will result in YouTube reinstating your video.

Most of the time the only information that you need to use is where the license was purchased as well as the link to where the copyright license document can be accessed.

After submitting your dispute YouTube admins will often take a few business days to get back to you with an answer. There is no risk involved in disputing a copyright claim; your video has already been flagged. In the worst case scenario, your video will remain flagged.

Usually with the help of an official license or direct permission from the content creator you can file a dispute with YouTube and receive an answer. If the dispute process is successful your video will be reinstated to the original uploaded version without blocked sound or content.

via GIPHY

author avatar

Richard Bennett

Richard Bennett is a writer and a lover of all things video.

Follow @Richard Bennett

Richard Bennett

Nov 01, 2022• Proven solutions

0

YouTube copyright rules might not always seem fair, but they are in place for a reason. If your YouTube videos get flagged for copyright issues relating to the background music or film clips it can be frustrating, especially if you receive a copyright notice for using royalty-free music you have a license for. Rather than feeling as though your creativity is being restrained, read this article to better understand the reasons copyright issues come up and what can be done to resolve them. Disputing copyright claims is something that any YouTuber can do.

Part 1: What is a Content ID Claim and Why Have I Received One?

YouTube copyright issues often come up as a result of content ID claims. This will prompt Google support to deliver a copyright notice to your account. Content ID claims are generally made against content that contains material that should not be available on YouTube. Claims are often issued if you don’t own the music, movie clips, TV clips, express rights to showcase cut scenes in video games, or other copyrighted media.

If you happen to see that a video has been muted or taken down you can visit the copyright notices section of your video manager to learn more. In this section you will learn more about what will be done as a result of the content ID claim.

Generally, a content ID claim does not put a YouTube channel in any kind of trouble. What usually happens is that the video is removed, you lose the ability to earn ad revenue from it, or the sound is muted so the copyrighted music no longer plays.

In some cases, the owner of the copyrighted content (usually musical artists) may choose to allow you to keep your video up in exchange for running their ads.

If you have received copyright claims there are ways that you can get your content put back up in its original condition.

First, you could purchase the rights to use the copyrighted media after your video has been flagged or try getting express permission from the content creator to use aspects of their content in your own original video.

Sometimes, your videos may be flagged even though you’ve already purchased the license for the copyrighted music, images or clips you are using.

YouTube’s robots automatically scan through the database of audio and visual content that is put up by copyright owners. Any video that has been uploaded to YouTube with this copyrighted content will receive a third-party copyright notice. Because flagging happens automatically it often affects creators who have licenses for the royalty-free music, or other copyrighted material, they are using.

The good news is that this same level of protection will ensure that your own original content can also be protected from reuse if you register it.

In order to dispute a copyright claim on your video the first thing that you will need is some proof that you have purchased the rights to the music or other content that is being reused in your video. If you have a direct link to the online license agreement this can help with the dispute process. Purchasing a license online for royalty-free music or other content is usually fairly simple and with a PDF license certificate you can quickly dispute copyright content ID claims.

You can upload your license document to the file sharing system Dropbox to make the content public for YouTube admins to check over. Heading over to your video manager on YouTube and sending a message link with the dispute and link to your license will make sure that your explanation is heard. Sending the license, written permission, or a link to the legal license will result in YouTube reinstating your video.

Most of the time the only information that you need to use is where the license was purchased as well as the link to where the copyright license document can be accessed.

After submitting your dispute YouTube admins will often take a few business days to get back to you with an answer. There is no risk involved in disputing a copyright claim; your video has already been flagged. In the worst case scenario, your video will remain flagged.

Usually with the help of an official license or direct permission from the content creator you can file a dispute with YouTube and receive an answer. If the dispute process is successful your video will be reinstated to the original uploaded version without blocked sound or content.

via GIPHY

author avatar

Richard Bennett

Richard Bennett is a writer and a lover of all things video.

Follow @Richard Bennett

Richard Bennett

Nov 01, 2022• Proven solutions

0

YouTube copyright rules might not always seem fair, but they are in place for a reason. If your YouTube videos get flagged for copyright issues relating to the background music or film clips it can be frustrating, especially if you receive a copyright notice for using royalty-free music you have a license for. Rather than feeling as though your creativity is being restrained, read this article to better understand the reasons copyright issues come up and what can be done to resolve them. Disputing copyright claims is something that any YouTuber can do.

Part 1: What is a Content ID Claim and Why Have I Received One?

YouTube copyright issues often come up as a result of content ID claims. This will prompt Google support to deliver a copyright notice to your account. Content ID claims are generally made against content that contains material that should not be available on YouTube. Claims are often issued if you don’t own the music, movie clips, TV clips, express rights to showcase cut scenes in video games, or other copyrighted media.

If you happen to see that a video has been muted or taken down you can visit the copyright notices section of your video manager to learn more. In this section you will learn more about what will be done as a result of the content ID claim.

Generally, a content ID claim does not put a YouTube channel in any kind of trouble. What usually happens is that the video is removed, you lose the ability to earn ad revenue from it, or the sound is muted so the copyrighted music no longer plays.

In some cases, the owner of the copyrighted content (usually musical artists) may choose to allow you to keep your video up in exchange for running their ads.

If you have received copyright claims there are ways that you can get your content put back up in its original condition.

First, you could purchase the rights to use the copyrighted media after your video has been flagged or try getting express permission from the content creator to use aspects of their content in your own original video.

Sometimes, your videos may be flagged even though you’ve already purchased the license for the copyrighted music, images or clips you are using.

YouTube’s robots automatically scan through the database of audio and visual content that is put up by copyright owners. Any video that has been uploaded to YouTube with this copyrighted content will receive a third-party copyright notice. Because flagging happens automatically it often affects creators who have licenses for the royalty-free music, or other copyrighted material, they are using.

The good news is that this same level of protection will ensure that your own original content can also be protected from reuse if you register it.

In order to dispute a copyright claim on your video the first thing that you will need is some proof that you have purchased the rights to the music or other content that is being reused in your video. If you have a direct link to the online license agreement this can help with the dispute process. Purchasing a license online for royalty-free music or other content is usually fairly simple and with a PDF license certificate you can quickly dispute copyright content ID claims.

You can upload your license document to the file sharing system Dropbox to make the content public for YouTube admins to check over. Heading over to your video manager on YouTube and sending a message link with the dispute and link to your license will make sure that your explanation is heard. Sending the license, written permission, or a link to the legal license will result in YouTube reinstating your video.

Most of the time the only information that you need to use is where the license was purchased as well as the link to where the copyright license document can be accessed.

After submitting your dispute YouTube admins will often take a few business days to get back to you with an answer. There is no risk involved in disputing a copyright claim; your video has already been flagged. In the worst case scenario, your video will remain flagged.

Usually with the help of an official license or direct permission from the content creator you can file a dispute with YouTube and receive an answer. If the dispute process is successful your video will be reinstated to the original uploaded version without blocked sound or content.

via GIPHY

author avatar

Richard Bennett

Richard Bennett is a writer and a lover of all things video.

Follow @Richard Bennett

Youtube for Filmmakers: Revolutionizing Visual Storytelling

Watch Youtube green screen videos and inspire your green screen ideas

author avatar

Richard Bennett

Mar 27, 2024• Proven solutions

Green Screen is a widely used technology in everything from the latest Hollywood blockbusters to the weather forecast. The idea is simple: shoot a video with a single colored backdrop (blue or green is often used), and then replace the background with any other video clip, graphic or still image you want. It’s highly effective and can be used for different topics and subjects. If you don’t know what a green screen is and how it works, check out the video tutorial below to get an overall idea first:

Download Win VersionDownload Mac Version

In fact, nowadays, green screen is actually well within the capabilities and budget of people like you and I. Just shoot your video anywhere, and then replace the background with any stock photo, branded graphic or fantastic video clips. Want to try it out? You’d better get your own green screen ideas first. Now let’s watch some Youtube green screen videos and get inspired.

Related:How to Shoot a Green Screen Video

You can also get some cool video effects from Wondershare Filmora Effects Store. Just check the block buster video effects below and download Filmora to try.

Download Win VersionDownload Mac Version

Check more video effects at: Filmora Effects Store

1Music Video

Action: Record yourself playing guitar or singing songs against a green screen.

Green screen idea: Replacing the background and add stunning filters to play at impossible locations.

2Time Travel

Action: Combine a green screen clip with a suitable video footage.

Green screen idea: Adjust the playback speed of each. And add an “Old Film” effect onto the speeded up clips.

3Clone Yourself

Action: Record you having a conversation with yourself.

Green screen idea: Put the videos in a single video, by adding a second video track, remove the backgrounds and then flip one clip to “clone” yourself.

4Ghost

Action: Take a spooky video or picture.

Green screen idea: Add the spooky video or image to a green screen video. Then adjust the contrast, opacity and add filters to complete your “ghost” clip.

5News Report

Action: Record an interview against a green screen.

Green screen idea: Add a meteor exploding overhead, skydiving, UFO sighting and more.

6Superman

Action: Put a green screen over the floor or wall and record a video as if you’re flying or leaping over tall buildings.

Green screen idea: Add some image of landscapes or footage of clouds to make your self flying.

7Travel Around the World

Action: Take photos of yourself in front of a green screen.

Green screen idea: Give yourself some amazing backgrounds with landmark, combine several clips together as if you’ve already gone there.

8Space Walk

Action: Record yourself “Space Walk” in front of a green screen.

Green screen idea: Replace the green background with an image of space. You can also slow down the playback speed to make the video more vivid.

9Be Invisible

Action: Wrap your body up in a green cloth in front of a green backdrop.

Green screen idea: Replace the green color with another scene to make yourself invisible just like Harry Potter.

10Fairy Tale

Action: Create your own fairy tale outline and invite your friends to do some role-play.

Green screen idea: Replace the background and apply fantastic video filter to enrich your video.

Got inspired and have your own green screen ideas? Download now the best video editing software to make a green screen, it’s so easy!

Download Win Version Download Mac Version

author avatar

Richard Bennett

Richard Bennett is a writer and a lover of all things video.

Follow @Richard Bennett

Richard Bennett

Mar 27, 2024• Proven solutions

Green Screen is a widely used technology in everything from the latest Hollywood blockbusters to the weather forecast. The idea is simple: shoot a video with a single colored backdrop (blue or green is often used), and then replace the background with any other video clip, graphic or still image you want. It’s highly effective and can be used for different topics and subjects. If you don’t know what a green screen is and how it works, check out the video tutorial below to get an overall idea first:

Download Win VersionDownload Mac Version

In fact, nowadays, green screen is actually well within the capabilities and budget of people like you and I. Just shoot your video anywhere, and then replace the background with any stock photo, branded graphic or fantastic video clips. Want to try it out? You’d better get your own green screen ideas first. Now let’s watch some Youtube green screen videos and get inspired.

Related:How to Shoot a Green Screen Video

You can also get some cool video effects from Wondershare Filmora Effects Store. Just check the block buster video effects below and download Filmora to try.

Download Win VersionDownload Mac Version

Check more video effects at: Filmora Effects Store

1Music Video

Action: Record yourself playing guitar or singing songs against a green screen.

Green screen idea: Replacing the background and add stunning filters to play at impossible locations.

2Time Travel

Action: Combine a green screen clip with a suitable video footage.

Green screen idea: Adjust the playback speed of each. And add an “Old Film” effect onto the speeded up clips.

3Clone Yourself

Action: Record you having a conversation with yourself.

Green screen idea: Put the videos in a single video, by adding a second video track, remove the backgrounds and then flip one clip to “clone” yourself.

4Ghost

Action: Take a spooky video or picture.

Green screen idea: Add the spooky video or image to a green screen video. Then adjust the contrast, opacity and add filters to complete your “ghost” clip.

5News Report

Action: Record an interview against a green screen.

Green screen idea: Add a meteor exploding overhead, skydiving, UFO sighting and more.

6Superman

Action: Put a green screen over the floor or wall and record a video as if you’re flying or leaping over tall buildings.

Green screen idea: Add some image of landscapes or footage of clouds to make your self flying.

7Travel Around the World

Action: Take photos of yourself in front of a green screen.

Green screen idea: Give yourself some amazing backgrounds with landmark, combine several clips together as if you’ve already gone there.

8Space Walk

Action: Record yourself “Space Walk” in front of a green screen.

Green screen idea: Replace the green background with an image of space. You can also slow down the playback speed to make the video more vivid.

9Be Invisible

Action: Wrap your body up in a green cloth in front of a green backdrop.

Green screen idea: Replace the green color with another scene to make yourself invisible just like Harry Potter.

10Fairy Tale

Action: Create your own fairy tale outline and invite your friends to do some role-play.

Green screen idea: Replace the background and apply fantastic video filter to enrich your video.

Got inspired and have your own green screen ideas? Download now the best video editing software to make a green screen, it’s so easy!

Download Win Version Download Mac Version

author avatar

Richard Bennett

Richard Bennett is a writer and a lover of all things video.

Follow @Richard Bennett

Richard Bennett

Mar 27, 2024• Proven solutions

Green Screen is a widely used technology in everything from the latest Hollywood blockbusters to the weather forecast. The idea is simple: shoot a video with a single colored backdrop (blue or green is often used), and then replace the background with any other video clip, graphic or still image you want. It’s highly effective and can be used for different topics and subjects. If you don’t know what a green screen is and how it works, check out the video tutorial below to get an overall idea first:

Download Win VersionDownload Mac Version

In fact, nowadays, green screen is actually well within the capabilities and budget of people like you and I. Just shoot your video anywhere, and then replace the background with any stock photo, branded graphic or fantastic video clips. Want to try it out? You’d better get your own green screen ideas first. Now let’s watch some Youtube green screen videos and get inspired.

Related:How to Shoot a Green Screen Video

You can also get some cool video effects from Wondershare Filmora Effects Store. Just check the block buster video effects below and download Filmora to try.

Download Win VersionDownload Mac Version

Check more video effects at: Filmora Effects Store

1Music Video

Action: Record yourself playing guitar or singing songs against a green screen.

Green screen idea: Replacing the background and add stunning filters to play at impossible locations.

2Time Travel

Action: Combine a green screen clip with a suitable video footage.

Green screen idea: Adjust the playback speed of each. And add an “Old Film” effect onto the speeded up clips.

3Clone Yourself

Action: Record you having a conversation with yourself.

Green screen idea: Put the videos in a single video, by adding a second video track, remove the backgrounds and then flip one clip to “clone” yourself.

4Ghost

Action: Take a spooky video or picture.

Green screen idea: Add the spooky video or image to a green screen video. Then adjust the contrast, opacity and add filters to complete your “ghost” clip.

5News Report

Action: Record an interview against a green screen.

Green screen idea: Add a meteor exploding overhead, skydiving, UFO sighting and more.

6Superman

Action: Put a green screen over the floor or wall and record a video as if you’re flying or leaping over tall buildings.

Green screen idea: Add some image of landscapes or footage of clouds to make your self flying.

7Travel Around the World

Action: Take photos of yourself in front of a green screen.

Green screen idea: Give yourself some amazing backgrounds with landmark, combine several clips together as if you’ve already gone there.

8Space Walk

Action: Record yourself “Space Walk” in front of a green screen.

Green screen idea: Replace the green background with an image of space. You can also slow down the playback speed to make the video more vivid.

9Be Invisible

Action: Wrap your body up in a green cloth in front of a green backdrop.

Green screen idea: Replace the green color with another scene to make yourself invisible just like Harry Potter.

10Fairy Tale

Action: Create your own fairy tale outline and invite your friends to do some role-play.

Green screen idea: Replace the background and apply fantastic video filter to enrich your video.

Got inspired and have your own green screen ideas? Download now the best video editing software to make a green screen, it’s so easy!

Download Win Version Download Mac Version

author avatar

Richard Bennett

Richard Bennett is a writer and a lover of all things video.

Follow @Richard Bennett

Richard Bennett

Mar 27, 2024• Proven solutions

Green Screen is a widely used technology in everything from the latest Hollywood blockbusters to the weather forecast. The idea is simple: shoot a video with a single colored backdrop (blue or green is often used), and then replace the background with any other video clip, graphic or still image you want. It’s highly effective and can be used for different topics and subjects. If you don’t know what a green screen is and how it works, check out the video tutorial below to get an overall idea first:

Download Win VersionDownload Mac Version

In fact, nowadays, green screen is actually well within the capabilities and budget of people like you and I. Just shoot your video anywhere, and then replace the background with any stock photo, branded graphic or fantastic video clips. Want to try it out? You’d better get your own green screen ideas first. Now let’s watch some Youtube green screen videos and get inspired.

Related:How to Shoot a Green Screen Video

You can also get some cool video effects from Wondershare Filmora Effects Store. Just check the block buster video effects below and download Filmora to try.

Download Win VersionDownload Mac Version

Check more video effects at: Filmora Effects Store

1Music Video

Action: Record yourself playing guitar or singing songs against a green screen.

Green screen idea: Replacing the background and add stunning filters to play at impossible locations.

2Time Travel

Action: Combine a green screen clip with a suitable video footage.

Green screen idea: Adjust the playback speed of each. And add an “Old Film” effect onto the speeded up clips.

3Clone Yourself

Action: Record you having a conversation with yourself.

Green screen idea: Put the videos in a single video, by adding a second video track, remove the backgrounds and then flip one clip to “clone” yourself.

4Ghost

Action: Take a spooky video or picture.

Green screen idea: Add the spooky video or image to a green screen video. Then adjust the contrast, opacity and add filters to complete your “ghost” clip.

5News Report

Action: Record an interview against a green screen.

Green screen idea: Add a meteor exploding overhead, skydiving, UFO sighting and more.

6Superman

Action: Put a green screen over the floor or wall and record a video as if you’re flying or leaping over tall buildings.

Green screen idea: Add some image of landscapes or footage of clouds to make your self flying.

7Travel Around the World

Action: Take photos of yourself in front of a green screen.

Green screen idea: Give yourself some amazing backgrounds with landmark, combine several clips together as if you’ve already gone there.

8Space Walk

Action: Record yourself “Space Walk” in front of a green screen.

Green screen idea: Replace the green background with an image of space. You can also slow down the playback speed to make the video more vivid.

9Be Invisible

Action: Wrap your body up in a green cloth in front of a green backdrop.

Green screen idea: Replace the green color with another scene to make yourself invisible just like Harry Potter.

10Fairy Tale

Action: Create your own fairy tale outline and invite your friends to do some role-play.

Green screen idea: Replace the background and apply fantastic video filter to enrich your video.

Got inspired and have your own green screen ideas? Download now the best video editing software to make a green screen, it’s so easy!

Download Win Version Download Mac Version

author avatar

Richard Bennett

Richard Bennett is a writer and a lover of all things video.

Follow @Richard Bennett

Also read:

  • Title: [Updated] Combating Content ID Blocks on YouTube with Knowledge
  • Author: Steven
  • Created at : 2024-05-25 20:50:24
  • Updated at : 2024-05-26 20:50:24
  • Link: https://youtube-clips.techidaily.com/updated-combating-content-id-blocks-on-youtube-with-knowledge/
  • License: This work is licensed under CC BY-NC-SA 4.0.