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 0x58c57fc6ba31207a9eec33272bc8f6a3c6fdb5fed91439a0b4f43585bf3f702e. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07eb0d33-cc12-4a82-a755-bb5899065016.json and https://artists.proofprofile.net/proofs/artist/07eb0d33-cc12-4a82-a755-bb5899065016.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Song of Heaven (2012 Re-Enhanced Full Version) [Original]
Rivers Family Reunion (From "Music Generator 2000") [Original]
Rise Of the Robots (From "Music Generator 2000") [Original]
Flux 909 (From "Music Generator 2000") [Original]
The Battle (From "Music Generator 2000") [Original]
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 0x32df4203ca4f4de715fa3b900c3e741eabc3ce6fdcaac35731579e23d018c453. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:36:23Z), 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/USZON2511278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85798ad39d273fa5d222a37886b0bc014171159ff47c83a804cbb9b98549668. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USADM2577697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c3fbf52fa5095ba9b68c82b3bb779fbd588d9dddd399703eb1157f62404e33. 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/USADM2518001.