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 0xec342c2eeff811666185d4429a929961ece52b02f991cf83a97110ac2f89d09d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0995b6be-b9f0-4dbd-9e10-b7eadd4f87fc.json and https://artists.proofprofile.net/proofs/artist/0995b6be-b9f0-4dbd-9e10-b7eadd4f87fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Missing You - Deluxe Edition (Reggae Archive Records - British Reggae Lost Classics)
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 0x2da13a34df537afa1322eae4b87482830a16495e05588ce519fdc7bc9bdc1fe1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR4GL1016918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437bf6e5050ed6136f697601d553bec52b82aead2781d660a8817a77ea110a27. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:28:40Z), 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/FR4GL1016921.
Digital English Presents Janet Lee Davis (Roots And Lovers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c04c59318dd2f6764a19e6e8fabe291fdadce681a26c026d05e0c3c45cf3218. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/QZPYN2486472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79bd60a78eed8045da7a0030e16d64dc513e961061a031d8190d5344ab20db1. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:49:29Z), 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/QZPYN2552387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef39ebc40229c22ecff85a41f747709a43e2509bae6a2bad46f039aa8b234d1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBQYS0700267.