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 0xc155323289c588a4c27eb3c126e3eedc80a18bf910e1d4aa99a411fc127c5d40. 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/e9b8bd53-e9a6-411c-b0c7-996987e4516c.json and https://artists.proofprofile.net/proofs/artist/e9b8bd53-e9a6-411c-b0c7-996987e4516c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xe4c002af2cf0d0023430c85f51ff5b098b61e812d0fc8171f309c8506a049a72. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMBZ92304417.
Hayabusa - Draxx (ITA) & cvmpanile Remix
Hayabusa [Draxx (ITA) & cvmpanile Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0623a535062e685ab3e670e155a6becc54c1817469543b85e2d5bfc9f0dd911b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEXO82211608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b684ce74bf5d484341aadd844927289cdd0149052cf6f4a5f9cf9b1e1e4c813. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UKS2R2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdc0a2eaf9db26673c289be9e85f1fac1a4c9a709c95565812b54327fc818d8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEKF22200098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a013e2b30becb862dd51f47cebf5f83d3a8a400ab07b041526c01730f5e33de. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEKF22300134.
Vamonos Viral (feat. Afro Bros, Dixson Waz & Morry)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed6b71d701078a806f8fde296dedb9603e5694a85655fd0d287b617c9206c0b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLK2U2200518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fbc5d482af18043135e48bb84d7c5f93662e847c70216513e710b644f65f5f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMFME2375778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b684ce74bf5d484341aadd844927289cdd0149052cf6f4a5f9cf9b1e1e4c813. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UKS2R2200002.