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 0xbda87f4b228b72747de306f348b7fed242b1e6c1b6dd85778e7ccdd9ff25fa08. 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/89af9815-1fd0-4750-b685-6f491f88e1c1.json and https://artists.proofprofile.net/proofs/artist/89af9815-1fd0-4750-b685-6f491f88e1c1.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 0xeeca9700e963355e392cf057e7b41917b243c26dc58e775c6e3089f8cfbfee93. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/THG010731878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e8b8c86d3f2633a2a5aa92b0036bd622a51a768b7c4a761299860b20a10d81. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/THG010731876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12e5580e8ffa0f9e86d12f24df83db898195bda2b5d4424183e279a276ad712. Chain 2 (Bitcoin): anchored in block 957634 (2026-07-12T00:26:43Z), 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/THG010731873.
สรุปว่าเพราะเธอ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1a57efb257964665f7d21cb81235459e6d03d7a4460a4440f619f77f97fd14. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/THG010731872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7aea2924edfdede35ffe53c104d9d83757b05645094f45ba8d556c1568f773a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/THW092000122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f27df94c457b0b7af323b1ad193e0729b59fbb29ef8ba75fcbf4262a5e7798b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/THW092001806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e5d42d293b6eb736e66648364d66641cc8ce51964144d5f75121155d7a3a6b. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/THW092104694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa950eaa9ff10c6207c504adec31a9d66492a053c044124aeb06161a7ca73f6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/THW092200822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55f70aec98c800d1fdbf8ca53b7ef2b3fb76ce246b49782215a5a66632a69c3. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/THW092202305.
ด้วยความไม่เคารพ (Duai Khwam Mai Khaorop)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae03a061dc23b94bdb10ccaf438a7784ee49969e2514ee07dca44da0a10ffd5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/THW092203032.
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