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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 0x6905cf465c104891e355386e9a27a311e56382d7fb2e299672665d65664cda2a. 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/3cb8a112-8cf4-45ca-808b-ae4eb3a2b861.json and https://artists.proofprofile.net/proofs/artist/3cb8a112-8cf4-45ca-808b-ae4eb3a2b861.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Automotivo da Sequência Intercelestial 6.0
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 0x88c7a8cabd028bb35de5393f7d9a1d0e49b416e30a9b0e1d559cb2292633af1c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ESA122409476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27cb320fbd5ca08815a4bd54de410634951ecf4fdcc410337d5f72f4212cc7f. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/BKVYY2400552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5a24d08a2c5235c55253542054713e6dca5b4b62dd6a1bb9679b761e5c6baa. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/USANG2445310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ba415d8e3b6df8139be6bbb3750722a04ae857b196df397a9669b10a9f6110. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/AUGBT2455017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f85fba2ac785af9a29edacec365814461e5da3ad109d9467ac3645d5b352df. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QMDA62496577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdb3915d972d46a9eeda9a07d33591db672b0a7627530b24594f74540a4b0c6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/CA5KR2499178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ab64f0be03680e12459d8e7487e3430f6a6a1af5e63c6c5649076a67ca822c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CA5KR2501923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8896b4007c8e087fa2a9b7f47fb1db1098f066e89822116c6d8d237cb1df7c. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QMDA72480037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e69b76001990faeafcd07ed82a25588ef801c94d30e910d0ec8d828a9c7cd4. 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/QMDA72480038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bcf6d29ff181999e7aafdfbda505fe0fd0f0d1afade39d7a4674c354252e8ac. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZWFT2539636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38891b8263edc3c1fe33e2d2b88ea59cd76ec4592ac2a765e1201b9738759da. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWFT2539638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b03c7632e7e80eaf4677099aae589f5476b348a87444173e7ddea0e9a578f35. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZWFT2539635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf416e1c834fc440689eb3569eda64bd68d07e68018f0a4fe6fc58aff23ca240. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QMFMF2519640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2856502875d911efc14fedafc44f17dae656ec812c88bf8b931b1ad405945ddb. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QMFMF2519641.