1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x22236aa984b7b30493db9538493ace0532545b62daa5443896e08099188e4037. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba758c21-a6de-4d0d-89bf-0a59b9bfeb38.json and https://artists.proofprofile.net/proofs/artist/ba758c21-a6de-4d0d-89bf-0a59b9bfeb38.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Streetcar Named Desire (Original Score)
We've Had This Date With Each Other from the Beginning
The Windermere Children (Original Film Soundtrack)
{"copyright_id":"0x692307bc6b2906efdfcaa1a6332c582377ff4516857d5cbb90dff66d8cfd25c3","isrc":"GBARL1901461","name":"Thoughts of Home","registered_at":"2026-06-29T01:28:54Z","spotify_id":"0ZMmhGfbvIfXyMvFKEtbop","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692307bc6b2906efdfcaa1a6332c582377ff4516857d5cbb90dff66d8cfd25c3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0ZMmhGfbvIfXyMvFKEtbop.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0ZMmhGfbvIfXyMvFKEtbop.
{"copyright_id":"0x094ee2f3e4cd70f728b55e3d3da3f681d35cd9f3efaabf0d7deebaa761c27802","isrc":"TCAEY2009910","name":"Bara Brith","registered_at":"2026-06-29T01:26:31Z","spotify_id":"12IeIDiCE22PqlcZn2rEKf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094ee2f3e4cd70f728b55e3d3da3f681d35cd9f3efaabf0d7deebaa761c27802. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/12IeIDiCE22PqlcZn2rEKf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/12IeIDiCE22PqlcZn2rEKf.
True Things (Original Motion Picture Soundtrack)
{"copyright_id":"0x71c4d7118b7a47f09396120f338bf9b6f7bbc2983572bfb0ac953da346d9a07a","isrc":"CALC42200305","name":"Thoughts of Home","registered_at":"2026-06-21T22:15:59Z","spotify_id":"3O2dzMt2dEPpEAUCeSnQbg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c4d7118b7a47f09396120f338bf9b6f7bbc2983572bfb0ac953da346d9a07a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3O2dzMt2dEPpEAUCeSnQbg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3O2dzMt2dEPpEAUCeSnQbg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc530428c8d080a80cb6e5742ed03549ea8c5172fd14f039322364a555c880bef. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4zf9muV2kKV07l0bGs77NG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4zf9muV2kKV07l0bGs77NG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1370ae7e2429454adc70859f01b65b387e0f2609a6691e8625b8875930500b0a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1YXmKoOepVOpnX3XQX4Qh3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1YXmKoOepVOpnX3XQX4Qh3.
{"copyright_id":"0x71c4d7118b7a47f09396120f338bf9b6f7bbc2983572bfb0ac953da346d9a07a","isrc":"CALC42200305","name":"Thoughts of Home","registered_at":"2026-06-21T22:15:59Z","spotify_id":"6dzkZ23wogBcbUHlGvbnfR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c4d7118b7a47f09396120f338bf9b6f7bbc2983572bfb0ac953da346d9a07a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6dzkZ23wogBcbUHlGvbnfR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6dzkZ23wogBcbUHlGvbnfR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03429fd44dfd143a13b143eb0c823af84e4bc5fd188c81dc2bb96d64ce44909e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/377PPru24prE3LubzgYDK2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/377PPru24prE3LubzgYDK2.
Rain Dogs (Original Television Soundtrack)
Don't Shit In My Mouth And Call It A Big Mac
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdc591bd939c8510e48502c8c0f099b0c1bad6473c3d62c48cc147b540ead3c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6SU67MSkLkHTvQJ9Auvx3w.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6SU67MSkLkHTvQJ9Auvx3w.
Locked In (Soundtrack from the Netflix Film)
Midas Man (Original Motion Picture Soundtrack)
Introduction / Basem (From "The Teacher")
Introduction / Basem - (From "The Teacher")
The Teacher (Original Motion Picture Soundtrack)
Brides (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b63ba6fe440ce1de765ac4ef7b5830a90ccf966b575de315c7b89386c48470. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2yGNA0P1t951r8aSGDaPTJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2yGNA0P1t951r8aSGDaPTJ.
The Kitchen (Score from the Netflix Film)
{"copyright_id":"0xb61ebd2d7e0c68b41198e0ce0bddf387df8beb4fbbd25feea74bf7db10cddbe9","isrc":"QZ8BZ2408610","name":"Welcome To The Kitchen","registered_at":"2026-06-10T16:39:36Z","spotify_id":"4z4gjb8B78l03WVnPvcTCN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61ebd2d7e0c68b41198e0ce0bddf387df8beb4fbbd25feea74bf7db10cddbe9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4z4gjb8B78l03WVnPvcTCN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4z4gjb8B78l03WVnPvcTCN.
{"copyright_id":"0xda537f712ef8e4038fa4e5252a3eabc3840831ea8ddc93da2adc9fa7ea3a3047","isrc":"QZ8BZ2408612","name":"Accepted By The Crew","registered_at":"2026-06-06T23:24:53Z","spotify_id":"20pJfe2XnmhYQWlKUlamHh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda537f712ef8e4038fa4e5252a3eabc3840831ea8ddc93da2adc9fa7ea3a3047. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/20pJfe2XnmhYQWlKUlamHh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/20pJfe2XnmhYQWlKUlamHh.
{"copyright_id":"0x9b28ab656cdbfc322735c3304ab5bd89ab1c1f1857c44fd2fc51fffaad2ffd16","isrc":"QZ8BZ2408613","name":"Ruby Eviction","registered_at":"2026-06-20T04:33:45Z","spotify_id":"09DQnXEighGjTBI4VoMoyH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b28ab656cdbfc322735c3304ab5bd89ab1c1f1857c44fd2fc51fffaad2ffd16. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/09DQnXEighGjTBI4VoMoyH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/09DQnXEighGjTBI4VoMoyH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2d42a1357b91be9fd3c431c72a71526934a6b5b3340b1f47149bef22aac624. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3OU8w90cQgPGR0Wq9BzfOt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3OU8w90cQgPGR0Wq9BzfOt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f90216a4f49e65e84e4d54a7ce0500348c7a837a86b470e5b7683d3b6e9f4b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3AN7iV6JJBsd0mSRwgMTso.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3AN7iV6JJBsd0mSRwgMTso.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38d3c53e3a039b60821b000785beeacfd50d28218f26f60b3fcdb623f0f3127. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4Y1R6jVpbPQpI5ir3Sju3A.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4Y1R6jVpbPQpI5ir3Sju3A.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c8229df844f6529e78cdd2264d9a37f0c0b3da3e8925fd2c32babd72cb1348. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Hs4MLFHgoHzonJLJHdMLM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Hs4MLFHgoHzonJLJHdMLM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c3e506c0b1b6cc94d486700ebc935c267df5d185519739f68022a127b532df. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4oNW09fq7MPwfzT1DToTva.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4oNW09fq7MPwfzT1DToTva.
Spheres - Einaudi, Glass, Nyman, Pärt, Richter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82352b183175a7738fa519b4c9652c2b0ba2ead924cbb730c4cd3b488df64878. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3SbWH8MplM5UGGc6FEbfiI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3SbWH8MplM5UGGc6FEbfiI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7175742557300cdb5e9069a76844aae073658263ead02efe93a485ce1054e6f4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/031mC9BsYCbJjwlOWUmroR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/031mC9BsYCbJjwlOWUmroR.