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 0x74e48e9011e5903030f72cf576437d048d74effb5d7b0d6b14e71025ba3ef26c. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c2de107-763f-46cb-92ef-d31af3d66ec5.json and https://artists.proofprofile.net/proofs/artist/6c2de107-763f-46cb-92ef-d31af3d66ec5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Live 02.05.22 (High Cotton Brewing Company - Memphis, TN)
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 0x8ac4c9dd7ede1dff25d22d8d5d9281d38eff2e0aed67e900b57010f5df511754. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAGK2269357.
Live 04.23.22 (Bert Driver Nursery - Smithville, TN)
Live 04.29.22 / Mike's Tavern / Reading, PA
Live 05.07.22 / The Chestnut / Nashville, TN
Live 05.20.22 / Smith's Olde Bar / Atlanta, GA
Live 05.21.22 / The One Stop / Asheville, NC
Live 05.27.22 / Lone Goose Saloon / Huntsville, AL
Live 05.28.22 / HiFi Clyde's / Chattanooga, TN
Live 06.16.22 / Stella Blues / New Haven, CT
Live 08.12.22 / Smith's Ole Bar / Atlanta, GA
Live 01.28.23 / Basement East / Nashville, TN
Live 02.25.23 / Smith's Olde Bar / Atlanta, GA
Live 04.01.23 / Mental Awakening Festival / Atlanta, Ga
Live 04.28.23 / The Camp / Huntsville, AL
Live 09.07.24 / Mousetrap / Indianapolis, IN