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 0x0f6ddddf8b5ace8a774e0bb2edab63f169b9793ebe1a2486f62448adfe281563. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3353b82d-811d-45ee-bbac-e919d847a826.json and https://artists.proofprofile.net/proofs/artist/3353b82d-811d-45ee-bbac-e919d847a826.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Super Smash Bros. Ultimate Theme (Remix)
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 0x3c74d4725c8a2cbd7e495dd1a1e4a33861bccfafe4783a6c23543e3535ca46c7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNWQ2028750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27b6057be1d99d321cac323068cefdbbd1fcec17d987157b8ed0d9347bbd985. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZNWQ2028754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4a70e600452f1301a0c3467137d35097d19beb0929244f92119f82ab123eca. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZNWY2251911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6376bd2faa90d6ded662d8259e307794f418260e02434da112274670da442c7. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/QZTAU2285941.
AQUATIC AMBIANCE (From "DONKEY KONG COUNTRY") [REMIX]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322f604d30b0c312e1345fe1c0828ec79caab79f43001bae93fab8e1f24ba77d. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZTAU2289056.
TOKYO DRIFT (From "FAST & FURIOUS") [REMIX]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591db6157b7678b647f72ff13df719ba4e5b703fc1fa67b044ab12ca5f181ee4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZES82465827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaae0837ec14e6c64891c1300f9d1a10a68c324d7ebec52990d879420c8212b6. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:43:07Z), 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/QZPLR2494395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a22bb3a4e92fc8388fba3a39ebc61305b830651d87ec22cec445ad9df4a6af. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZDA52082432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da310d52fb5f2e01b73260e3aed0b18aa2b26450249b49845442fc693719cec. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZHN52577072.