{"copyright_id":"0x1d4dade52f7e0ba90eb2fa7bf2021ebdf6536dcb6235fd99e90dbbe52b33e44b","name":"Regulo Alcocer Y Su Grupo","registered_at":"2026-06-11T13:44:55Z","symbol":"NIM0038715","token_address":"0xf092f74f6df7dd760ce1ec6df39b5ffead3fbc5f","type":"artist","uuid":"1d666b9c-5724-44d7-9720-9ba3cc021162"}
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 0x1d4dade52f7e0ba90eb2fa7bf2021ebdf6536dcb6235fd99e90dbbe52b33e44b. 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/1d666b9c-5724-44d7-9720-9ba3cc021162.json and https://artists.proofprofile.net/proofs/artist/1d666b9c-5724-44d7-9720-9ba3cc021162.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 0xee819e4bb45c960a029249383bb2dda4439505a55761b79ba5060c39318abcf8. 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/QM6DC1574370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696507e062df964c4e92300979a5fdc51ce790b2e84c1cc791fa38b03bf4ad43. 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/QM6DC1574374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2369b17b0c94503d3dd3040754eae60cdc88a5e15d4694c88fdb311d03886bc. 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/QM6DC1573323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8cee9203ab6b47b00aeeca2067687d84362a928d69cdedf9dad118f5ce6268. 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/QM6DC1573336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b611bdcc7245f7a19624e4deb5b553c3ade9a92ec9660aa510198e2e9a782db. 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/QM6DC1574387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d474da9826193de87ea502a11f505d7130f6ea7f5c3d88fd79738adcfd767c. 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/QM6DC1574388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf63d896fa646be128109679f22837a2bb15d1a51fd4b8a26673fa57b242bc6. 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/QM6DC1573125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b333044046db52c20ff4286dc63a46c39d6b6bcd787ceb3a50e1ee8bb030ab. 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/QM6DC1573126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f2b55459b18e85f196211eaa92e8f97548c12f456a9747a450e086234625b0. 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/QM6DC1573127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee8aa25bf18ccaf7d179459d6abc0309e80219955619662f6d748ced9672252. 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/QM6DC1573128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a021af973dadf260a6827cb010ac5803e3682cbeac0ea69ccccdc36827f120. 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/QM6DC1573129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8666504cb99acdc075e560f828c637f2dab4010cdc442bd0b42ac906f40c0898. 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/QM6DC1573130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3904c05eb5d4dc12f2eb17a9491513b49298390dc4f39546b20fb3af0a89d1f. 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/QM6DC1573131.