Philip Cohran & The Artistic Heritage Ensemble
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 0x1e034bb70f8566fb5479e0b7e9042ba283a95978217e99db48af59adcd373405. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37ce2835-e374-4568-8916-46db2e9485c9.json and https://artists.proofprofile.net/proofs/artist/37ce2835-e374-4568-8916-46db2e9485c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Philip Cohran and the Artistic Heritage Ensemble
Black Beauty - Philip Cohran & The Artistic Heritage Ensemble
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 0x9ff1b3f39fdb70f1790ada120c0c56658271d17beea4ecacbe825c83dbd37784. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/GBCTF1000076.
Soul Jazz Records Presents Soul of a Nation: Afro-Centric Visions in the Age of Black Power (Underground Jazz, Street Funk & the Roots of Rap 1968-79)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a7b30f6786772b651d036915474b029d2f9db8a952d0fe312b030a3a776bd7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBBCK1701202.