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 0xedcedc46706ca7aa04b1dbd199d0bec04c820260a008602fe1c8d8de7333f82d. 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/ad5c6a9a-c439-4336-9c17-a602b55e8f3f.json and https://artists.proofprofile.net/proofs/artist/ad5c6a9a-c439-4336-9c17-a602b55e8f3f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Relax: Background Music for Restaurants, Spas, And Bedtime
Improv Over One Chord (Social Distancing in B Major)
{"copyright_id":"0xbd0615e341c0b9859fad181bd57ae09ce9d69b2e5d02cfbf4cb7ec945dd23554","isrc":"USDY42296928","name":"Improv Over One Chord (Social Distancing in B Major)","registered_at":"2026-06-20T15:58:25Z","spotify_id":"6ChLjPuvNnDvY9jC8m8Juh","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 0xbd0615e341c0b9859fad181bd57ae09ce9d69b2e5d02cfbf4cb7ec945dd23554. 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/6ChLjPuvNnDvY9jC8m8Juh.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/6ChLjPuvNnDvY9jC8m8Juh.
Improv in A-Flat Major (The End of the Road)
Improv in E-Flat Major (Stay Here with Me)
{"copyright_id":"0xe70b8a0656cc18daead86fd9ae75ea6d281e8b04c87397654230a6ba0a055b04","isrc":"USDY42296936","name":"Improv in E-Flat Major (Stay Here with Me)","registered_at":"2026-06-22T14:51:47Z","spotify_id":"53yt8P1opG3p9jJjxEc9jT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70b8a0656cc18daead86fd9ae75ea6d281e8b04c87397654230a6ba0a055b04. 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/53yt8P1opG3p9jJjxEc9jT.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/53yt8P1opG3p9jJjxEc9jT.
Beginnings (For Orchestra) [feat. Doug Hammer]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d571354ccf4a147adaff65de00ad24e8eab62ad5a38717e527cab5825ce2b4. 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/1u3WokJjUIrJdMC5mtjCoc.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/1u3WokJjUIrJdMC5mtjCoc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c2b3ffdf5f66dfdfdd955124f9beba17acfcee424829309be1664215f3baa1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3U0DyiNmcnjv3MyxoYQUcw.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/3U0DyiNmcnjv3MyxoYQUcw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bf0643fb34118c793d8d3b5baa5499eaf42f1f61be70523a3c69e7c1a45d3d. 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/5EUuyqhzu4opInrH7ZzpCL.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/5EUuyqhzu4opInrH7ZzpCL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78653bb0680c7d086887ddee8f77373ace599d821568fedb881ae7703ea18159. 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/2p5AjnUMcTdaengdrmM5wf.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/2p5AjnUMcTdaengdrmM5wf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33db6d844ca9f8a243a66b26829d7917d7bba76e4aaf7a94fcc286d9b2129fa7. 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/4mjyv0nBZNTKMQr0iPquEo.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/4mjyv0nBZNTKMQr0iPquEo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010baa5530db9e22fe1a857f9de555d3e7a3020f9c09a003bc91c4c74e36c3af. 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/6kATJ43fszeg9fILck9Qo0.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/6kATJ43fszeg9fILck9Qo0.
{"copyright_id":"0x10bd66b96409624e3a04db3babeafd9e3dce89ad3a3757df57dee59badaea26e","isrc":"USCGJ1474013","name":"Meditation: Calm","registered_at":"2026-06-11T00:14:06Z","spotify_id":"0cUZxG9udgAY98iicCZ3CC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bd66b96409624e3a04db3babeafd9e3dce89ad3a3757df57dee59badaea26e. 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/0cUZxG9udgAY98iicCZ3CC.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/0cUZxG9udgAY98iicCZ3CC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d90cd5435cd48752c33300b9a6c93e44023941579432d138a497c0b44c402b2. 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/1PdQd0LhfjNC3ILFp5wAFg.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/1PdQd0LhfjNC3ILFp5wAFg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29cc3390d31fbdda17eaa042a1a20617246f95a379238bf9b89443c1018b51da. 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/7xBPWCbPGgznV74IGDLaYM.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/7xBPWCbPGgznV74IGDLaYM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b8c3f7a72131a899d85665692ca4af85a6d3d5ae45f088480f2edf77b0842c. 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/4g7gLnJ2Oj8F4E45M4x5Tv.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/4g7gLnJ2Oj8F4E45M4x5Tv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5d964f9c5c80a95d7255012178e1280be9f51e67bd14675999a09b29de3bb3. 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/0DWA4HLs0KbwmAjz5mBgAg.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/0DWA4HLs0KbwmAjz5mBgAg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035900251827c667f4c2709663aa643d73a18a83f24e3245d97afb62ef9f1f41. 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/71xg8JfDzImODsrEfCVXWr.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/71xg8JfDzImODsrEfCVXWr.
{"copyright_id":"0xc6fd89b00f8365ad52cdc34303a537adf771babbaf6861f4d9af7e9b2c307a7b","isrc":"USCGJ1332797","name":"A Moment of Joy","registered_at":"2026-06-09T12:46:52Z","spotify_id":"3XMtXmTugf8fEapsqM7mhB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fd89b00f8365ad52cdc34303a537adf771babbaf6861f4d9af7e9b2c307a7b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3XMtXmTugf8fEapsqM7mhB.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/3XMtXmTugf8fEapsqM7mhB.
{"copyright_id":"0xea09f55119b7c635f940a9ca7a5b02ae84f03706b32c237d2f35bd4a556d3da7","isrc":"USCGJ1332804","name":"Meditation: Skipping Stones","registered_at":"2026-06-26T09:23:42Z","spotify_id":"5Lk0eG6GkI7FtbIaZN1lgV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea09f55119b7c635f940a9ca7a5b02ae84f03706b32c237d2f35bd4a556d3da7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Lk0eG6GkI7FtbIaZN1lgV.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/5Lk0eG6GkI7FtbIaZN1lgV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9754398406c37239454bb912b5960c7289d8dbfd6fe58a135d34452bac7639b3. 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/3WDc1kYsfyyWgCVkZT4JlQ.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/3WDc1kYsfyyWgCVkZT4JlQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92fa08c79e976b70ee077002da81945542c9fe417c9141aa5cef4e98d9f124b. 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/0a2wY7EoTnKHlWL6o3W1MG.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/0a2wY7EoTnKHlWL6o3W1MG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93850bf5f69934359c4b273bac320097bb936761c4a23806074e26f917fffa68. 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/6NYdxrnIz971epGrR5pZHe.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/6NYdxrnIz971epGrR5pZHe.
{"copyright_id":"0x2bb9a5e40f5386f8967293ad0a88f6ef82a5bfab7ff5d245e435381df609f3b9","isrc":"USHM20755653","name":"Diamond Music","registered_at":"2026-06-06T20:31:08Z","spotify_id":"7vMYlYEwHJzoty4G6rk1Sy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb9a5e40f5386f8967293ad0a88f6ef82a5bfab7ff5d245e435381df609f3b9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7vMYlYEwHJzoty4G6rk1Sy.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/7vMYlYEwHJzoty4G6rk1Sy.
A Cold Wind Blows (An Arrangement for Orchestra)
Improv over One Chord (Social Distancing in B Major)
{"copyright_id":"0x040e0c354fbef1db40f264b6e25aa9c883bd3d3fc6de654f7a5c0cc1939ebd96","isrc":"USCGJ2091502","name":"Improv over One Chord (Social Distancing in B Major)","registered_at":"2026-06-26T09:23:30Z","spotify_id":"4ukjNgOLgh04Br64ZOkRf4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040e0c354fbef1db40f264b6e25aa9c883bd3d3fc6de654f7a5c0cc1939ebd96. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ukjNgOLgh04Br64ZOkRf4.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/4ukjNgOLgh04Br64ZOkRf4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0b08e791809ac09150b61b6e92bb3127d89c84e7c49ab461dff4b991fe2ddb. 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/67Ol3LE2ZePNJf6qR0Yw0c.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/67Ol3LE2ZePNJf6qR0Yw0c.