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 0xd126706ece6a1648d13011ee8034ca8ce47213cdaa9d0638a15790bc156c2347. 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/e92c769b-738c-4d02-a2a8-16665d603249.json and https://artists.proofprofile.net/proofs/artist/e92c769b-738c-4d02-a2a8-16665d603249.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Summer Sky / Baangpolskan efter Zacharias Baang
Summer Sky / Bångpolskan Efter Zacharias Bång
{"copyright_id":"0x5b041f85e9d805e1035eb3a784cc54e698a1f5774bf26db0246ed53b8f08d328","isrc":"SEVPA1100204","name":"När jag sjunger, sjunger himlen","registered_at":"2026-06-27T23:14:14Z","spotify_id":"3Cw3EfCe4cwW8fPZec4Lf5","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 0x5b041f85e9d805e1035eb3a784cc54e698a1f5774bf26db0246ed53b8f08d328. 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/3Cw3EfCe4cwW8fPZec4Lf5.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/3Cw3EfCe4cwW8fPZec4Lf5.