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 0xa2b7a3feb0809cd019300e1e0b914072f341868a6f6c4d8062adfb5941051784. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ffba71e-b6dd-4a21-bc41-555f5f7e1fc9.json and https://artists.proofprofile.net/proofs/artist/3ffba71e-b6dd-4a21-bc41-555f5f7e1fc9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xadf4f8acbb5242d54dc1a3c93ea1fce59ed0e37f2a812666e96ed5559d89b242","isrc":"MYVM11400031","name":"Pasti Sempurna","registered_at":"2026-06-07T12:50:46Z","spotify_id":"6cp9LsC14IFKgMZni8axmO","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 0xadf4f8acbb5242d54dc1a3c93ea1fce59ed0e37f2a812666e96ed5559d89b242. 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/6cp9LsC14IFKgMZni8axmO.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/6cp9LsC14IFKgMZni8axmO.
{"copyright_id":"0xd548df249166cdcf8343c6ccc3aeade00409439f18563c2dbe67f06b3e48051c","isrc":"MYUM70901850","name":"Doaku Pohonkan","registered_at":"2026-06-07T22:23:41Z","spotify_id":"3ycvHiUA3MkUaenDUC5rvz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd548df249166cdcf8343c6ccc3aeade00409439f18563c2dbe67f06b3e48051c. 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/3ycvHiUA3MkUaenDUC5rvz.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/3ycvHiUA3MkUaenDUC5rvz.