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 0x23bd4cbd9ff2968592a6f9241fbfc17348f0dcd41d2b0b2a79eb8f0b945a87b1. 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/7dc56791-e661-4d04-89d4-bac60bac7c54.json and https://artists.proofprofile.net/proofs/artist/7dc56791-e661-4d04-89d4-bac60bac7c54.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 0x01d1c7d131b3fa9a99357ed0423256e7a09e90411d316646d214e4798b1f1d57. 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/QZTAY2498724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc548a29eeab6d84f10fb2eb71ce069b5b84c7f11e434a7c72f47e455487a233e. 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/USA2P2423351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d867786a7a8dfe64447dccd9c12eabb6f40f393941792faa06532e7145bf05. 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/QZHN92412812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1110df0b092cb45b1c6ccac4dc5d0abf01fbaebb71481cf13db437ae3db920a3. 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/QZTBB2367124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c0603100f57337e5f57da6256cb0a63f709366cfa3697aad4aedda37cf7d6c. 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/QZNWY2363742.
DESI TRILL Presents...Brown is Everywhere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9637b58960851a543fb6b344081018ad85e055b93cc0626d663f5b0bd0cedc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2P2418967.
Mumbai Magic (feat. Natania, Subhi & Shalmali Kholgade)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6379c030b5bd2f5f2d14c47dc62ed5b6100e3fc6e59da186b53dbc3a87ec1a90. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA2P2416172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc548a29eeab6d84f10fb2eb71ce069b5b84c7f11e434a7c72f47e455487a233e. 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/USA2P2423351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d66615c8bfc7d23575efb3a3e0ec4c8020b9bb7771a41e6eb1fcaae2bc59ae. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USA2P2423357.