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 0x700af8a51c1f96a4f3b54bcb70565fee7e7f4e6c962b8c197a63f3538945c2f7. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c670e94-b5d6-4008-b378-1d9ce6b7d4a3.json and https://artists.proofprofile.net/proofs/artist/3c670e94-b5d6-4008-b378-1d9ce6b7d4a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xd13007e8925059112605f5a8cd7af0482297dac3d51649e68beb558e89ff9683. 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/0c0e5aiaEXXOE5gj6OYdlN.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/0c0e5aiaEXXOE5gj6OYdlN.
Prayer for the Planet (Vocal) [feat. Mark Stevens]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60019bb974784801417184dc00f71ce9729a4ece301e0b01a472843c7b48d13. 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/26gpUmER62ss7OhvFVnNlL.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/26gpUmER62ss7OhvFVnNlL.
{"copyright_id":"0x8acc6f94a3fc347af64c3763ba78abe9b620237c8cf09e4fce2998b03fca9167","isrc":"USHM91624523","name":"Time Without End","registered_at":"2026-06-29T09:41:50Z","spotify_id":"7uKFdtluwzz9cIkVXfg5pa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acc6f94a3fc347af64c3763ba78abe9b620237c8cf09e4fce2998b03fca9167. 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/7uKFdtluwzz9cIkVXfg5pa.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/7uKFdtluwzz9cIkVXfg5pa.
{"copyright_id":"0x95bf2d15ab687e4bfd3ea2d04260606fd96f5edd3dc81e9cefc39bf5af3868bc","isrc":"USCGJ1874652","name":"I Choose You","registered_at":"2026-06-29T09:46:00Z","spotify_id":"1S33Xx4qJvlyIo4t4CnsLj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95bf2d15ab687e4bfd3ea2d04260606fd96f5edd3dc81e9cefc39bf5af3868bc. 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/1S33Xx4qJvlyIo4t4CnsLj.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/1S33Xx4qJvlyIo4t4CnsLj.
{"copyright_id":"0x267b20473cd62498ceede8eebb3a292e02334f3edd6b478c296391fa77be52a4","isrc":"USL4Q1876553","name":"Secrets of the Sea","registered_at":"2026-06-29T09:43:26Z","spotify_id":"2phCoPaLkxf4K5oILvM0DD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267b20473cd62498ceede8eebb3a292e02334f3edd6b478c296391fa77be52a4. 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/2phCoPaLkxf4K5oILvM0DD.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/2phCoPaLkxf4K5oILvM0DD.
Where Night Meets Day (Piano Music for Sleep)
{"copyright_id":"0xdb16f39a1bd0b86915d6727b114270fd2ac69369881f10d78726e1434569bcd2","isrc":"USHM22073889","name":"Floating: Piano Music for Sleep","registered_at":"2026-06-29T09:40:50Z","spotify_id":"5ivK5VS0UKHNOumkJRurE4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb16f39a1bd0b86915d6727b114270fd2ac69369881f10d78726e1434569bcd2. 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/5ivK5VS0UKHNOumkJRurE4.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/5ivK5VS0UKHNOumkJRurE4.
Canon and Gigue in D Major, P. 37: I. Canon “Pachelbel’s Canon” (Piano and Cello)
Woven of Mist and Moonlight (Piano and Cello)
All Your Dreams Come True (piano and cello)
Walk Across the Water (solo piano version)
When the Heart is Light (piano and violin duet)
{"copyright_id":"0x82f20613a4f188c269b7f23fc4e58ae56acdae5b095ecc5f9128fdee2aa97c4e","isrc":"USCGH2509068","name":"Passion Flower","registered_at":"2026-06-29T09:41:38Z","spotify_id":"76LUtw4QD0u6kcEVn5JGB1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f20613a4f188c269b7f23fc4e58ae56acdae5b095ecc5f9128fdee2aa97c4e. 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/76LUtw4QD0u6kcEVn5JGB1.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/76LUtw4QD0u6kcEVn5JGB1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9374f34304aa089b903e0c1c1e6c64caf551e89d8975847425365b18ced1dede. 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/6hXcrc8kUFqRr1zKiiukEG.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/6hXcrc8kUFqRr1zKiiukEG.
{"copyright_id":"0xcc0b81515399ac368d044abc0ec520cec31cfa59b18facf3b2ae3c9747314da3","isrc":"USCGH2509073","name":"Pocket Full of Posies","registered_at":"2026-06-29T09:44:52Z","spotify_id":"03ua6IudxezzjubgWer9r1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0b81515399ac368d044abc0ec520cec31cfa59b18facf3b2ae3c9747314da3. 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/03ua6IudxezzjubgWer9r1.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/03ua6IudxezzjubgWer9r1.
{"copyright_id":"0x5604d7d8b26d3d3b71c7964de4b099087f3d48ef53bab2cc841fb7bd8f12dda2","isrc":"DEPI82452744","name":"Hemmed in Silver","registered_at":"2026-06-29T09:39:14Z","spotify_id":"3SWxFpnJtvAQepqcn1ie1O","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5604d7d8b26d3d3b71c7964de4b099087f3d48ef53bab2cc841fb7bd8f12dda2. 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/3SWxFpnJtvAQepqcn1ie1O.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/3SWxFpnJtvAQepqcn1ie1O.
It Is Well With My Soul (piano and cello)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9377e7cb0365446256926d7acd31310687ccbb40b81f332e0213b8d40a9703. 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/1vfHoUKUc9sDd4HMn5lp66.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/1vfHoUKUc9sDd4HMn5lp66.
{"copyright_id":"0xfd9ff18753973e2fa853487acc8c3f668febf53d2d61c58757e897cede0dd817","isrc":"TCABJ1258188","name":"It Came Upon a Midnight Clear","registered_at":"2026-06-27T10:20:18Z","spotify_id":"6UgHB0wqqgfjVAaoFZ9tDS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9ff18753973e2fa853487acc8c3f668febf53d2d61c58757e897cede0dd817. 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/6UgHB0wqqgfjVAaoFZ9tDS.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/6UgHB0wqqgfjVAaoFZ9tDS.