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 0x1edbd6da52c2da1c6164ee1aeb4e9096f85e86dc5d0e4ca1c362a9e486d20a2c. 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/6903201e-d953-4d37-b44e-9cff670aef97.json and https://artists.proofprofile.net/proofs/artist/6903201e-d953-4d37-b44e-9cff670aef97.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x33be89f0de5db0966e698bf502c75bebb24e716e7a9cf0ee8c75b470c4208839","isrc":"UKZGC2302865","name":"turning chapters","registered_at":"2026-06-26T02:47:50Z","spotify_id":"5lyToMqNYVF5AIOrQ1ppoK","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 0x33be89f0de5db0966e698bf502c75bebb24e716e7a9cf0ee8c75b470c4208839. 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/5lyToMqNYVF5AIOrQ1ppoK.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/5lyToMqNYVF5AIOrQ1ppoK.
{"copyright_id":"0xaa486ba0b0799b8a5980cf0ea55e5883adfc9b28dbe8b73900f58ea0718e8a51","isrc":"US3DF2465433","name":"feel your skin","registered_at":"2026-06-29T13:04:14Z","spotify_id":"3sqUcpHb1nlbYXFDIpSLW5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa486ba0b0799b8a5980cf0ea55e5883adfc9b28dbe8b73900f58ea0718e8a51. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3sqUcpHb1nlbYXFDIpSLW5.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/3sqUcpHb1nlbYXFDIpSLW5.