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 0xec037924b2554ecbb714f0742becd1b70c035d7f1d6ffd87fb5ed436d31038d8. 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/141ac320-a138-4306-b0cd-770d64097171.json and https://artists.proofprofile.net/proofs/artist/141ac320-a138-4306-b0cd-770d64097171.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 0xd6b379efb78ba1d341ff8fff0c1cc3fd105a6e6ee7ea5b67b035d6bd407b9ff2. 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/1QjZ4uzg74Rtd54ezc84UB.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/1QjZ4uzg74Rtd54ezc84UB.
{"copyright_id":"0x08acac9aa14b66d961cec26eb339307034d4b6e5088fe1160d7c2de8d67ace60","isrc":"QZNWX2300799","name":"Damelo Sabrosito","registered_at":"2026-06-04T16:42:04Z","spotify_id":"6l14k8f8lHLI8LPnFpjMZY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08acac9aa14b66d961cec26eb339307034d4b6e5088fe1160d7c2de8d67ace60. 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/6l14k8f8lHLI8LPnFpjMZY.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/6l14k8f8lHLI8LPnFpjMZY.
{"copyright_id":"0x3a0cb7cf15857c8eb85bcf7b2c9f27f626d6ce6069457cb8123cd905fcd07ea1","isrc":"QZG2X2407468","name":"Como Lo Mueven","registered_at":"2026-06-05T16:44:27Z","spotify_id":"2vHFrPyqZOodFOQotKyTX1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0cb7cf15857c8eb85bcf7b2c9f27f626d6ce6069457cb8123cd905fcd07ea1. 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/2vHFrPyqZOodFOQotKyTX1.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/2vHFrPyqZOodFOQotKyTX1.
{"copyright_id":"0xb52e107ef30f0cea81f620d388333b3ea80effaab71d9fbea92a1d01bbaaffcb","isrc":"QM4TW2569369","name":"JEQUE REMIX","registered_at":"2026-06-01T14:41:27Z","spotify_id":"2q7viZVmWjHuIllSn0nFwF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52e107ef30f0cea81f620d388333b3ea80effaab71d9fbea92a1d01bbaaffcb. 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/2q7viZVmWjHuIllSn0nFwF.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/2q7viZVmWjHuIllSn0nFwF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8da2cbeefc1606a9e55bfdcde787df10c41a7624d7f15e1b8340b93fecb3043. 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/5ENFFA517DLNAimB3gyEXv.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/5ENFFA517DLNAimB3gyEXv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452cef0e7412f6023cf10b37fc2e7177e1972946b5894aab139ffe0e6ee8f852. 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/77qBJP2cD3wqS4tR5ubjyS.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/77qBJP2cD3wqS4tR5ubjyS.
{"copyright_id":"0x2fa826dd9efd030f7a416006abefffc29e77469f86769609a171a6fcd2f15ca3","isrc":"CA5KR2413195","name":"Ay Ey Oh Uh - NEMJ Remix","registered_at":"2026-06-07T14:22:20Z","spotify_id":"2BitrHtxIhRLitZxjF7qZK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa826dd9efd030f7a416006abefffc29e77469f86769609a171a6fcd2f15ca3. 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/2BitrHtxIhRLitZxjF7qZK.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/2BitrHtxIhRLitZxjF7qZK.