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 0x2f47b74b9c380eae4b9134f23e4c87f6419303e7bf70faf97f89684180811d9c. 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/e6767eed-2d18-406e-879c-5830e1635562.json and https://artists.proofprofile.net/proofs/artist/e6767eed-2d18-406e-879c-5830e1635562.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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{"copyright_id":"0xa6ca9a3fa20f22d8606e7eacd7a79fa9b8dbdf74aab52df4e6014eb23a03d3db","isrc":"QZNJX2223771","name":"Como Bailabamos","registered_at":"2026-06-24T15:18:52Z","spotify_id":"3pwnhrrIDYHQFNkzo96xGr","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 0xa6ca9a3fa20f22d8606e7eacd7a79fa9b8dbdf74aab52df4e6014eb23a03d3db. 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/3pwnhrrIDYHQFNkzo96xGr.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/3pwnhrrIDYHQFNkzo96xGr.