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 0x7b6ea47409ca7f0d634186517ee16c1371135703427d5508d31fb2941efeddea. 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/e84f19e9-3e7e-4220-a6f6-3e3a6cee0060.json and https://artists.proofprofile.net/proofs/artist/e84f19e9-3e7e-4220-a6f6-3e3a6cee0060.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x9fb19a634e95735d29c7c8383266ebed856d7083b953b8077c35beebcce29a0d","isrc":"USEE19900161","name":"Heaven's Here on Earth","registered_at":"2026-06-05T11:17:28Z","spotify_id":"327yGshtQlY2EER4LUAUBh","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 0x9fb19a634e95735d29c7c8383266ebed856d7083b953b8077c35beebcce29a0d. 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/327yGshtQlY2EER4LUAUBh.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/327yGshtQlY2EER4LUAUBh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49470d416b237c458e55e34a5213d2e3e51ba9d2173ba1d09dca804ea8094ce1. 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/08EcoOiDmOY7f6HYgBqEnj.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/08EcoOiDmOY7f6HYgBqEnj.
{"copyright_id":"0x9d017b5ff17ceb1aa301a0eac8529d718eec24cd8485b690f378bc96f16438e3","isrc":"USEE19900163","name":"Smoke and Ashes","registered_at":"2026-06-04T10:50:06Z","spotify_id":"6sGwACtF7BG4oht0ahdpS8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d017b5ff17ceb1aa301a0eac8529d718eec24cd8485b690f378bc96f16438e3. 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/6sGwACtF7BG4oht0ahdpS8.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/6sGwACtF7BG4oht0ahdpS8.
{"copyright_id":"0x7a14445663a7eba9bab2655d6b8f0fa645d0c01a8331f279ef00bc4ffec3cfbb","isrc":"USEE19900164","name":"Cold Feet","registered_at":"2026-06-05T11:41:53Z","spotify_id":"1bsna3fBBE9dbUsHXxkVLZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a14445663a7eba9bab2655d6b8f0fa645d0c01a8331f279ef00bc4ffec3cfbb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1bsna3fBBE9dbUsHXxkVLZ.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/1bsna3fBBE9dbUsHXxkVLZ.
{"copyright_id":"0x89a792bd547af77b25a3e5e649463b1cd0403cc84b1a968fc1b65c7054d7bee0","isrc":"USEE19900165","name":"At This Point in My Life","registered_at":"2026-06-04T13:40:49Z","spotify_id":"1GY4RUcd0kDh3GNRKPZojC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a792bd547af77b25a3e5e649463b1cd0403cc84b1a968fc1b65c7054d7bee0. 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/1GY4RUcd0kDh3GNRKPZojC.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/1GY4RUcd0kDh3GNRKPZojC.
{"copyright_id":"0x5e27abd2fd99ec336b666245e5cbcde07acf69d5003c4231f8eeaf9d6847f917","isrc":"USEE19900166","name":"The Promise","registered_at":"2026-06-01T16:13:18Z","spotify_id":"2HO2bnoMrpnZUbUqiilLHi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e27abd2fd99ec336b666245e5cbcde07acf69d5003c4231f8eeaf9d6847f917. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2HO2bnoMrpnZUbUqiilLHi.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/2HO2bnoMrpnZUbUqiilLHi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646b714f8d55960a17c2c2d67de6da2d9a85f766f89a2a1dcf2662f444bf2792. 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/0Mrijz8ZQ9Fg3VE2JQbo9s.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/0Mrijz8ZQ9Fg3VE2JQbo9s.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a115aad119587121f9f6b575118ed48ef14ccc95f3834751be46cf5a5ae3e7. 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/16RlDozkpCXrxHci387dBm.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/16RlDozkpCXrxHci387dBm.
{"copyright_id":"0x59569100c4f6ca17cff2e38de071871909143c5e1baf8779d2ca76004980fb2b","isrc":"USEE19900169","name":"Give Me One Reason","registered_at":"2026-06-01T05:48:30Z","spotify_id":"4vDBJeeQCbhP9FaPPMsYkY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59569100c4f6ca17cff2e38de071871909143c5e1baf8779d2ca76004980fb2b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4vDBJeeQCbhP9FaPPMsYkY.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/4vDBJeeQCbhP9FaPPMsYkY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6e1cf3ca214d90498a90b600a4012521f2ca0dbf53f48ac74947187259a384. 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/5QL7qe44ji2KCmb0S8PZQO.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/5QL7qe44ji2KCmb0S8PZQO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c625d5488d3a622db58dabfec80685f86768355649cad7a1c5a0299b7d6a325. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6cSJrWYXLkNm9GelBzaoQ6.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/6cSJrWYXLkNm9GelBzaoQ6.
{"copyright_id":"0x62398a0b5ca44fb4e5069f7f20e3ee0c3c0e5448aab4c40262ff919861a0c67a","isrc":"USEE10100547","name":"Talkin' Bout a Revolution","registered_at":"2026-06-01T05:35:30Z","spotify_id":"0YMFcrMtBowDdD5bPz0cgy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62398a0b5ca44fb4e5069f7f20e3ee0c3c0e5448aab4c40262ff919861a0c67a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0YMFcrMtBowDdD5bPz0cgy.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/0YMFcrMtBowDdD5bPz0cgy.
{"copyright_id":"0x3f853c3c7387fef7a3b4fa68e26cbb6232668df0db4c1c8b9e71cf892f2ac7f9","isrc":"USEE10180719","name":"Fast Car","registered_at":"2026-06-01T03:02:37Z","spotify_id":"2M9ro2krNb7nr7HSprkEgo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f853c3c7387fef7a3b4fa68e26cbb6232668df0db4c1c8b9e71cf892f2ac7f9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2M9ro2krNb7nr7HSprkEgo.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/2M9ro2krNb7nr7HSprkEgo.
{"copyright_id":"0xea5e564024d884dd17060bd380b043c6fca58f6f0640dca1fdcf6e15b4a39278","isrc":"USSV10500013","name":"Ain't No Sunshine","registered_at":"2026-06-04T08:59:07Z","spotify_id":"1amH1FjaNDAaZVpHWzcztW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5e564024d884dd17060bd380b043c6fca58f6f0640dca1fdcf6e15b4a39278. 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/1amH1FjaNDAaZVpHWzcztW.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/1amH1FjaNDAaZVpHWzcztW.
Get Up! Stand Up! (Highlights from the Human Rights Concerts 1986-1998)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4e98a9311303b247385bc567c2335a06f43fac4b348f0a0e6c8575aabd9af5. 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/5HkJn8OPVl3kA4kavVzJPE.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/5HkJn8OPVl3kA4kavVzJPE.
{"copyright_id":"0x174ba76a47b28e06c5d5829076df0febd981e8b8c72dfd8751f98f53aed17f9a","isrc":"GBCBR1300067","name":"Talkin' Bout a Revolution - Live","registered_at":"2026-06-20T22:38:13Z","spotify_id":"1cPWVNg4ecfljLXxAt1tvE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174ba76a47b28e06c5d5829076df0febd981e8b8c72dfd8751f98f53aed17f9a. 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/1cPWVNg4ecfljLXxAt1tvE.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/1cPWVNg4ecfljLXxAt1tvE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65818ea4b4a9aa3188730248420813ef2b7514461a4bae8a433e4090168fb815. 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/0QjIB6DsNOiQ3dlFjcKm5f.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/0QjIB6DsNOiQ3dlFjcKm5f.
Classical Music for Focus: 14 Calm and Relaxing Classical Pieces for Concentration and Focus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53284d43eedfbcbbf12e4879d6cc7785182dc53fc280db86a1d387669afb4e00. 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/2Ykid5zsdq57bc9km6fDub.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/2Ykid5zsdq57bc9km6fDub.