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 0x7e94a60feff351a77e912d86b5f2972c9db9f0b42b53305b5d7fd23ddf86349e. 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/69f4d0e3-6b07-47ef-a6c3-c9a95a38e548.json and https://artists.proofprofile.net/proofs/artist/69f4d0e3-6b07-47ef-a6c3-c9a95a38e548.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 0x9fced4af12def1e0176acab4e4b858f981e921597c839f9aacb28bf76fa32615. 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/019yfGiJOObzxstyBLRMXA.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/019yfGiJOObzxstyBLRMXA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2846c359cb439d8dc0e4c1153e62cca6ac2a09e2660a7efc0bce68ce995387d. 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/3PjCIbdsNLG1PlnwYYWr46.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/3PjCIbdsNLG1PlnwYYWr46.
{"copyright_id":"0xe661c9fcbb6ed61f9817c50c8a3ace1723e98281746e48580d64f1f1acc433cd","isrc":"ATGU62000345","name":"When You Say Nothing At All","registered_at":"2026-06-05T23:44:39Z","spotify_id":"4Nj0dXgnZWLU9WrU0qBGNc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe661c9fcbb6ed61f9817c50c8a3ace1723e98281746e48580d64f1f1acc433cd. 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/4Nj0dXgnZWLU9WrU0qBGNc.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/4Nj0dXgnZWLU9WrU0qBGNc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878867738b5cb9dd5577f07516fe3ce0d27589f4d717b8b8cbb0a3445de3a3e8. 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/7n46BBGGgZtaYc6370pdlk.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/7n46BBGGgZtaYc6370pdlk.
{"copyright_id":"0x8ec41952c05cb2330879e7a09ddbb48b52fae6364324672d5dd102ea40c25a54","isrc":"NLT2H2400338","name":"Somewhere Only We Know","registered_at":"2026-06-05T09:50:42Z","spotify_id":"5eOJ09NUEgYLgZl3BViRMH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec41952c05cb2330879e7a09ddbb48b52fae6364324672d5dd102ea40c25a54. 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/5eOJ09NUEgYLgZl3BViRMH.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/5eOJ09NUEgYLgZl3BViRMH.
{"copyright_id":"0x54c0c933dea070babe7b25be8abedcd687d4e125284afee1b6e657e2e2940ea5","isrc":"NLT2H2301141","name":"The One That Got Away","registered_at":"2026-06-04T07:27:57Z","spotify_id":"1xIn3CVcM7kXJy3yEgzv4W","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c0c933dea070babe7b25be8abedcd687d4e125284afee1b6e657e2e2940ea5. 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/1xIn3CVcM7kXJy3yEgzv4W.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/1xIn3CVcM7kXJy3yEgzv4W.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54770ac797445424c801dfb2b5631cd6783249d5a9df4fdc5e34b54cceb6d6f9. 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/3xN1a7yBniQnnVxxductwF.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/3xN1a7yBniQnnVxxductwF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c05436ecf2f9900313fc558e64e916f6002ead4d1b1a16e0bd68ed8e125975. 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/4vAwpEpfGYOXS2hw5Z0WgX.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/4vAwpEpfGYOXS2hw5Z0WgX.
House Of The Rising Sun (Sped Up Version)
House Of The Rising Sun - Sped Up Version
{"copyright_id":"0x8fefedef5829c8d4c74e43ee6fa72e877e1d7a9860592827b337654e85dc8de6","isrc":"ATGU62000210","name":"House Of The Rising Sun - Sped Up Version","registered_at":"2026-06-09T14:50:33Z","spotify_id":"37uKcB0wLajosbaRrjYwcW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fefedef5829c8d4c74e43ee6fa72e877e1d7a9860592827b337654e85dc8de6. 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/37uKcB0wLajosbaRrjYwcW.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/37uKcB0wLajosbaRrjYwcW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714310d74ba460c341206c230953e6f3af79340f40b7d6b16a5b9b5789079d05. 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/6CALs9VDg83TLYynQegflQ.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/6CALs9VDg83TLYynQegflQ.
{"copyright_id":"0x526b1deb5bf16e0ba68902a14a1f013ef2e5beb132e5259c40c6423cbdbaeb13","isrc":"BE8LH2300020","name":"Get Down (feat. Rayless)","registered_at":"2026-06-07T14:56:09Z","spotify_id":"5zz4524NFqe2MYvginaH4a","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526b1deb5bf16e0ba68902a14a1f013ef2e5beb132e5259c40c6423cbdbaeb13. 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/5zz4524NFqe2MYvginaH4a.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/5zz4524NFqe2MYvginaH4a.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3e3eef4cac966930763f6df047e8c33d2de418b8a604a760fd9f55c09c63e8. 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/2dzrieY9SmItuglIxUpHCk.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/2dzrieY9SmItuglIxUpHCk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf61dcfcbfba144b5c5e28f253149ca307878e8184b5ba44a1352338612476e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5nj316g6E6qbg00IEbmBtR.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/5nj316g6E6qbg00IEbmBtR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5439d26807213d8cd9f34f15da675ed8955782e80aecbac640a0a39310fb0bff. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0TRKKrIu46t33HVX1f8c69.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/0TRKKrIu46t33HVX1f8c69.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a972acd8b094e6cff52af241983bc4c32a1ed37662f60953f5920856861818. 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/1axZuYLqzkeVHRo8QGfprj.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/1axZuYLqzkeVHRo8QGfprj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f0a921633b864b944fc61fcfe7c55cdc34c2f1f8b996e13d52ae3454721294. 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/0zbcm22tghwbNgXqIhXVPr.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/0zbcm22tghwbNgXqIhXVPr.