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 0x2f2755abd9631a319e0e4e64ee72569d4d4a08a3968b2ad725b13d377e594bef. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4fbbbd4-794f-4cf8-8738-1b6ad60b38f8.json and https://artists.proofprofile.net/proofs/artist/f4fbbbd4-794f-4cf8-8738-1b6ad60b38f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shot Yourself ( 2014 Edit ) - Original Mix
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 0xc77747d7aa647b51abd968dfef74a1c564830c830df61e1b22760aed15d93a72. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBKQU1418909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be8406a385d7658d37cef3e4a6d4a52f9a9814478c2ced8a9bdd5d52b3a5bf7. 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/GBKQU2185111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb562b8bfb18f3e11983fbdd71e33d2d31eb6ea328703932674808ba45a98c5. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/GBKQU2273024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf747f17004a94230d517ad38bbfbf7fdd187ad346eba6b7571e68b1bfc8f3db. 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/GBKQU2379953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1510ed14a8b10a48772d9cad163e94cd7a1c18a9245047b0f68e83eed092360e. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:51:42Z), 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/GBKQU2402060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe02f9c4776dbc81af6b1228e3085a197de1739f0375c934a508b797eaadede. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBKQU2471680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73010acedebaca8a089bd276627d4da3794b7d8e54d27ce2274bd9b1f9263da1. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GBKQU2552891.