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 0xc10331fe42d072f7ed9dbfd0b737d649b94003a0bfa858479d065f9d626e83d5. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c3a5286-4220-404a-8db9-7a1df4d65749.json and https://artists.proofprofile.net/proofs/artist/4c3a5286-4220-404a-8db9-7a1df4d65749.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nitroglycerine Featuring Faggy Smokes and Pistol
Pulp Free Featuring Shape, Daniel Joseph and Faggy Smokes
The Art Of Blowing Glass vs. The Act Of Breaking It
The Second Song on the Tape You Make Her
The Art of Blowing Glass vs. The Act of Breaking It
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 → block OTSBitcoinBlock must exist at that height 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 0x9159d7a4aa1779b0ab4a48025d796252305854e8f6e836be8c15473f6e6de2ab. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US37V1502404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc97207de29a3353fcc73a585cb926afa35c5d40bc62431fe9abbaeec15439d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAIB2482892.