{"copyright_id":"0xb03f41aef775b34faaf28902e443d6df4d927db9cca397add8f9dc53f0945ad2","name":"FranZi trone | Frische Kinderlieder","registered_at":"2026-06-15T14:07:12Z","symbol":"NIM0731919","token_address":"0xde3985fe84ac7daeaf7ec7fa8208bd85d97dda1e","type":"artist","uuid":"01dd022a-23f5-4ca2-852b-9f3756aa6069"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xb03f41aef775b34faaf28902e443d6df4d927db9cca397add8f9dc53f0945ad2. Chain 2 (Bitcoin): anchored in block 953848 (2026-06-15T22:54:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/01dd022a-23f5-4ca2-852b-9f3756aa6069.json and https://artists.proofprofile.net/proofs/artist/01dd022a-23f5-4ca2-852b-9f3756aa6069.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1e71794864bdf2783848c6c851d3931b58c770de170358c9349ffc4d720c32. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWY2474360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640664769c42f269ef7616dfe29a499d91f9ef956f9459ba82b1716804eb0c36. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:56:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7R2425592.