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 0x673adf81ca2015e7d0416c9f02367c26ec83a7cf0e7a1dfb0dc19218f1d5f6f6. 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/900f197a-4d59-4bdd-afb7-3f882659c6e9.json and https://artists.proofprofile.net/proofs/artist/900f197a-4d59-4bdd-afb7-3f882659c6e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xa9ac41016cf3521543e2ce5b4b7e004152ade7c2594ed417c17ecb165cc70b93","isrc":"USMBR9900589","name":"Desert Ceremony","registered_at":"2026-06-28T20:36:31Z","spotify_id":"3vXIpKQTldNHlmSNNYmFw5","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 0xa9ac41016cf3521543e2ce5b4b7e004152ade7c2594ed417c17ecb165cc70b93. 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/3vXIpKQTldNHlmSNNYmFw5.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/3vXIpKQTldNHlmSNNYmFw5.
Giustizia di strada - Lavora fino alla morte
Pomeriggio di novembre nel parco - Occhi che osservano
Giustizia di strada – lavora fino alla morte
Pomeriggio di novembre nel parco – Occhi che osservano