1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ff5bf4129a0862b1be392526388b4fb28d040158a26a0416fb8f83eb32d851. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36c9b347-41d1-441c-a231-10bad67e3273.json and https://artists.proofprofile.net/proofs/artist/36c9b347-41d1-441c-a231-10bad67e3273.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Play Guitar With…The Stone Roses (Book 2)
I Wanna Be Adored - Full Instrumental Performance with Guitar
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa21e3125d40c0a5d5034b6d2e25387dd6b0cd82b31719a0914dff7b0a3da92. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620507749.
Play Guitar With the Music of the Rolling Stones
Play Guitar With…Great Bands of the 90´s
Easy Playalong for Clarinet: The Beatles
Easy Playalong for Violin with The Beatles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d919d6628348770180c232eb4f8dd3deba263e3560d8312acf02a2f3bcad0ea. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620543111.
Play Acoustic Guitar with the Music of Simon & Garfunkel
Play Acoustic Guitar with the Music of David Gray
Play Piano With…Coldplay, Toploader, David Gray, Robbie Williams, Muse, Elliott Smith & Moby
Play Guitar With Bon Jovi (The Early Years)
Easy Playalong for Recorder: Classical Greats
Play Bass with the Music of Linkin Park, Limp Bizkit, System of a Down, P.O.D., Papa Roach & Marilyn Manson
Play Guitar With…The Dandy Wahols, Muse, Pul, Ash, Travis and Feeder
Easy Playalong for Clarinet: Classical Greats
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5180306d67b1ba922886e4a60fca50de6158bb44225b4871d3b221d1a11749d9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620543170.
Easy Playalong for Violin: Classical Greats
Christmas Favourites: Playalong for Clarinet
Christmas Favourites: Playalong for Alto Saxophone
Baby, It's Cold Outside - Full Instrumental Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483de4952ddcf7fe8db2e250335359bea0f08c851bd19d2e7e5ee27cdd6c4b78. Chain 2 (Bitcoin): anchored in block 957690 (2026-07-12T10:16:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91307617.
Play Bass with the Music of Queens of the Stone Age, The Vines, Bowling for Soup, Jimmy Eat World, Blink 182, The Hives & Sum 41
Jazz Solos: Play Along for Alto Saxophone
Great Ballads: Playalong for Tenor Saxophone
Play Piano with…Keane,Coldplay, Muse and Other Great Artists
Jazz Solos: Play Along for Tenor Saxophone
Play Piano with the Music of Jamie Cullum
Classical Favourites: Playalong for Clarinet
Classical Favourites: Playalong for Alto Saxophone
Play Guitar with…The Greatest Guitar Riffs of All Time
Money for Nothing - Full Instrumental Performance (with Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ce5b903a119dcb234ed1d18ca5807efa17ec6eb3912d1710be7dabe41d000a. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620507627.
Classical Favourites: Playalong for Trumpet
Play Bass with the Music of Paul McCartney
Roxanne - Backing Tracks Only (Without Drums)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a81ba6f39bc8823826b64f317934b44c72d80e37dc7492a1d8355514fd74f19. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620518594.
Flute: Play-Along Blues with a Live Band
Alto Saxophone: Play-Along Blues with a Live Band
Play Guitar With…Velvet Revolver, Fall Out Boy, Linkin Park, Foo Fighters, Wolfmother, Smashing Pumkins, Biffy Clyro & Queens
Clarinet: Play-Along Blues with a Live Band
Clarinet: Play-Along Soul with a Live Band
Play Piano with Mika, Coldplay, Leona Lewis, and Others
Clarinet: Play-Along Gospel with a Live Band
Clarinet: Play-Along Latin with a Live Band
Flute: Play-Along Latin with a Live Band
Alto Saxophone: Play-Along Gospel with a Live Band
Clarinet: Play-Along Swing with a Live Band
Alto Saxophone: Play-Along Swing with a Live Band
Play Bass With The Best of Led Zeppelin Vol. 1.
Since I've Been Loving You - Full instrumental performances with bass
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf111f1e314e46fb5514d278aed19f8f90817c9a651dae994fcbe579e9e7cf7a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620483889.
Lilly Allen Songs for Solo Singers (Karaoke)
Great Lady Gaga Songs for Solo Singers (Karaoke)
Christina Aguilera Songs for Solo Singers (Karaoke)
Play Bass With The Best of Led Zeppelin Vol. 2.
Rihanna Songs for Solo Singers (Karaoke)
Madonna Songs for Solo Singers (Karaoke)
Play Drums with the Music of Led Zeppelin, Volume 2
Leona Lewis Songs for Solo Singers (Karaoke)
Beyoncé Songs for Solo Singers (Karaoke)
Mariah Carey Songs for Solo Singers (Karaoke)
Michael Jackson Songs for Solo Singers (Karaoke)
Whitney Houston Songs for Solo Singers (Karaoke)
Play Drums with the Music of Led Zeppelin, Volume 1
Thunderstruck - Full Instrumental Performance with Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ccaf2ae8e9df8ec0b87593ff6a0ac39755828fbd3ee04d5dd12c9932589f89. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:37:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620461848.
Instrumental Tracks For Vocalists Vol. 14 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 7 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 16 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 3 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 2 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 12 - Instrumental Backing Tracks For Singers Minus Vocals
You've Got To Hide Your Love Away (As Made Famous By Eddie Vedder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8dc2d5d05756b2866f1ad9441a0ef20ceb21c4362daa1efdb443b8b4ffcfe28. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371057737.
Instrumental Tracks For Vocalists Vol. 18 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 15 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 9 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 13 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 1 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 20 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 22 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 19 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 10 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 23 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 5 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 21 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 6 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 17 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 11 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 8 - Instrumental Backing Tracks For Singers Minus Vocals
Instrumental Tracks For Vocalists Vol. 4 - Instrumental Backing Tracks For Singers Minus Vocals
A Christmas Collection EP - Instrumental Renditions Of Holiday Hits
Hometown Glory - Full Instrumental Performance (With Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529c08f0001e32a1e54e4494a53b56c12157eba7d62ee4564c43ad94b7fe36bf. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620465542.
Play Guitar With the Greatest Guitar Solos of All Time
Play Guitar with the Music U2 (1980 - 1983)
New Year's Day - The Full Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3746706b5070a6a2db454b54a8ebf906b9facb315013698ceeca400c8595a5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T01:00:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620461621.
Play Piano With the Music of Ray Charles
Play Guitar With the Best of Led Zepplin
Play Guitar with Oasis' 'What's the Story Morning Glory'
Nothing Else Matters - Full Instrumental Performance [with Guitar]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287e236878d8036c098be8dffb1ed4baf5052b5a8f16518675e2be16d4027da0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620461590.
Fade to Black - Full Instrumental Performance [with Guitar]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d75d530fe6f6fa419d3894dac8a0ed4dec9b8835ab171fd1ea9f5b24062ad1e. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620461593.
The Unforgiven - Full Instrumental Performance [with Guitar]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c702185f435b918fff7a367faad8b056c4d8e166364f573d754586b838e9657. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620461595.
Play Piano with Keane's 'Hopes and Fears'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b51ee2100c4348695a0387161740aa708ea685c0064a2fa90a0845d27b3d2d. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620461560.
Play Piano with Katie Melua, Norah Jones, and Others
Play Guitar With the Kooks, The Killers, The Kaiser Chiefs and Others
Play Guitar with The Best of Led Zeppelin Vol. 2
Play Guitar with Led Zeppelin - The Blues
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c594beb04a5f637abc78c5eba1d700579313715bb950893e8dffb71760a6060. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620483693.
Audition Songs for Female Singers 9: Classic Soul
Audition Songs for Female Singers: Today's Hits
Audition Songs for Female Singers 8: Blues
Audition Songs for Female Singers 10: R&B Hits
Audition Songs for Male Singers - The Boublil Schönberg Collection: Show Hits
Audition Songs for Female Singers - The Boublil-Schönberg Collection Show Hits
Audition Songs for Male and Female: Gilbert & Sullivan
Audition Songs for Male Singers: Film Hits
Audition Songs for Female Singers: Film Hits
Audition Songs for Female Singers - R&B Anthems
Audition Songs for Male Singers: R&B Anthems
Audition Songs for Male Singers 4: Perfect Day
Audition Songs for Male and Female: Christmas Ballads
Play Guitar with the Music of John Lennon
Audition Songs for Female Singers 7: Hits of the 90s
Audition Songs for Female Singers: Rock Hits
Play Guitar with Oasis: Definitely Maybe
Audition Songs for Female Singers 5: Chart Hits
20 Great Audition Songs You've Heard on X Factor
Play Guitar With Bon Jovi (the early years)
Play Guitar with Franz Ferdinand, Coldplay, Muse, Feeder, Stereophonics, Ryan Adams and the Thrills
Play Guitar with the Music of Kula Shaker, Manic Street Preachers, Ocean Colour Scene, Oasis, Stone Roses, Pulp & Paul Weller
Play Guitar with Queens of the Stone Age
Play Guitar with the Best of Eric Clapton
Play Guitar with Linkin Park, Limp Bizkit, System of a Down, P.O.D., Papa Roach and Marilyn Manson
Play Guitar with Blink 182, Sum 41, Alien Ant Farm, Andrew W.K., the Dandy Warhols and American Hi-Fi
Play Guitar with Coldplay, Travis, Stereophonics, Manic Street Preachers, Muse and Feeder
Last Resort - Full Instrumental Performances (with Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec943731e37050f16bf168e1c07e78d59d3370f1569274c0597dd45b1672b6d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620501741.
Take a Look Around - Full Instrumental Performances (with Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb53abeab8318e23c7ada82f6a61498f902faa58a304ef66c68e3d56c01942af. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:34:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620501742.
Recorder from the Beginning: All together Christmas Recorders
Every Breath You Take - Full Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858d376eb52fbd95f4bc122938e1a7bd2ec9edc4b6eeb5d8effc77576883b00b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:33:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620529603.
Playalong for Flute: Keane Hopes and Fears
Playalong for Alto Saxophone: The Rat Pack
Playalong for Alto Saxophone: Christmas Hits
Playalong for Violin: Today's Chart Hits
A Whole New World (From "Aladdin") - Full Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd2dd0095fa273c3ca57b1231ba0b2a74991999633289c6f3d365e4255b87f9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620529975.
Schindler's List (From "Schindler's List") - Full Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80b9d4df1074722d89cee4baff2c7f467182d0c7d623d1a77b2233d40f5259d. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620529980.
Playalong for Trumpet: Today's Showstoppers!
Minus Drum: Blues in the Pocket, Vol. 1 & 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d18b1d1ae03819a2b218da5e266c66ed8cb466464398acafcaa52a4e97c6fc. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1449038.