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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6e744b51d3e6cf91b12255a4400c55530758e590dd0190920a3ab34e65886b. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9472d163-f68a-4ccd-96e5-1db6a9ce9289.json and https://artists.proofprofile.net/proofs/artist/9472d163-f68a-4ccd-96e5-1db6a9ce9289.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29395135b362f16f2d1108ed3c94f14bba637f47fd5b620d329c7e970b5998d. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/HKG732277715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e883f4cabc142a722c717cc168e95e5f0c80b7feec049d6f4cfac6e98ab908. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HKG732277727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd130862d1761d165504a96f01a1dd219f6b3ff10685ae40761b39cbbcd35b7bc. 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/HKG732277731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd923376a8be18f805c70963d4c7940f91d1fb147213a0931ff0c8af759dc5ea. 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/HKG732277733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff7c7dc41cf8df2901fa2972e0d62982602f75ca7039ba2076522ffcd2c0b82. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/HKG732277735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314d42ca2d4a36b9f20dd2f0e0bbeb9bcc131849811f325274d556375f699908. 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/HKG732277737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bddff171e7ef94ddd73e9f79a09c46145a7dddd04382074f8b3c8bb71539cb5. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/HKG732277739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1697052476266b2bfa71895a9294f8c1a3bf9b5f6716045df38fcf8b1d98bdbc. 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/DGA072198286.
Mintone Records Spring Special Mini Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e60e158df4e1df680357183bc783e3da72ed94af6126b91aad5e7786641631a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FRX762045946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6e559da533e7b7080573d9872f0d252c1281afc60a43e38ba360c1953a7bd6. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FRX762045949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4070f9c7ade5d7eef072cec2dd19deaa73694083752d9508c3c89e28d02034c6. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FRX762045950.
Mintone Records Summer Special Mini Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f0a0c72b5d0f43c1f99ca7567898c2864e96f0821dcd3f0e89e58fc704f71d. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/FRX452120245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bb1be734db14591b6181a2ea0584060fb63ae4f5d1baa1bd41dc65917cbce4. 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/DGA0L2302030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd297e5e6e5cbc9a2447f760376551a3483267c22e1b8bc3da342fe9f436c1fd. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/FRX282058403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ba4bc03f720758edabdb41510209f65fd38137e28974b30b188ee23e5a6e26. 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/HKG732515180.