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 0x650030f32fe0853431c62d7bf250bbfe2385a8fc4a8b443d94b26e763faed41f. 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/bda29bdc-92f6-4374-b0e5-402cefc536aa.json and https://artists.proofprofile.net/proofs/artist/bda29bdc-92f6-4374-b0e5-402cefc536aa.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 0x65beb7b6c072316ce4f569b74a366cc772845f3955d186cbf68447e6e645e047. 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/4URdPlDsIux1ltUokXxr0t.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/4URdPlDsIux1ltUokXxr0t.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c817c9b47c44950f0a139a145f2e963625d92434839b2195b9c98d86db8567. 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/5twZ6gRxUZ84wgNO1nBcDf.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/5twZ6gRxUZ84wgNO1nBcDf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc117d846a9ec24a118ab5b3a95bcd1292f447d2f9e866b1b21729b1911e6d4ac. 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/4mSOngutH6P5gWYurvmR3W.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/4mSOngutH6P5gWYurvmR3W.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe310af80b4144aaba5811053195c194765fef172ac51953be207bee384cf53a8. 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/1OazyOlRAPpwtD4v25JmnG.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/1OazyOlRAPpwtD4v25JmnG.
{"copyright_id":"0x6906b4d76f31c6aee46ad1fcc5afac41f93355e5600545ddd630e3cd0aeafd50","isrc":"USANG2267185","name":"Te Vas A Recordar","registered_at":"2026-06-09T20:59:59Z","spotify_id":"5iopXMeav0CaJk30PjTjtk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6906b4d76f31c6aee46ad1fcc5afac41f93355e5600545ddd630e3cd0aeafd50. 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/5iopXMeav0CaJk30PjTjtk.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/5iopXMeav0CaJk30PjTjtk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3651f961e33aca25d4c7645031dedc8927f327b67f0ca5d34a50ae6d5ec4469c. 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/28HYD4KhFwOpLCHE1273vz.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/28HYD4KhFwOpLCHE1273vz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e01046a287915849fa360de438eea33e55bc7b51645007d397d2f7dcfa86f0. 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/3TKQWzj6E2dTeIIV4TRweg.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/3TKQWzj6E2dTeIIV4TRweg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d7287752080e0827c2077be502d5cf555f0633d4fab43f482d8d40e8049095. 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/61TzUSClh8RKQftiI2cJJ0.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/61TzUSClh8RKQftiI2cJJ0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee63282bde8e635c26e2022406ff6fb8673f7ced20c0bd48835368688de106d. 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/5trbQ35GE77zBtGZbwGeCp.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/5trbQ35GE77zBtGZbwGeCp.