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 0x15306fc4a836113997adac38ed119c7f79d4913f0be37e94460fb4aeac6d2122. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb121afa-187d-4f09-8cd5-26cb184bcf56.json and https://artists.proofprofile.net/proofs/artist/cb121afa-187d-4f09-8cd5-26cb184bcf56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Meenzer brauche Fleischworscht, Weck un Woi - Radio-Mix
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 0xe5c24bce326619d9cfb5ab9efa6e084928c890204668652c1728f81329a5981e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEMJ80900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda052a3cb7291fe762fde9002f19ca417be6b85b243e0bf1440108dc8dc497e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:49:24Z), 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/DEMJ80900042.
Hier in Meenz sind wir zu Haus - Radio-Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b646f98179ae0e70b52cacaf770ef2e7deb836e7a3f24e1546c13a59ba6a7c. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:25:15Z), 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/DEMJ80900048.