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 0x29645200307e2ed7569ac39824fe4029e25abf5894eb68d41397badf5b8edf5a. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07826a5c-29dc-49c2-b3ce-8e1e50d02769.json and https://artists.proofprofile.net/proofs/artist/07826a5c-29dc-49c2-b3ce-8e1e50d02769.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Attack On Titan X Jojo's Bizarre Adventure(Aberturas)
Dragon Ball Z Tema - Instrumental Sanfona
Dragon Ball Z Tema 2 - Instrumental Sanfona
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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 0x6fa54e7ef42f41521d9ab4b09f9610779baadb9a34063c18c0ea1b3204803cb2. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:01:53Z), 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/QZNJZ2502294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846b5706ad6cbc56c288d9189efa52c34fa18a73f63ed2dcc57cba784d02e07a. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:22:15Z), 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/QZNJZ2502296.
Jojo's Bizarre Adventure - Chase - Forró (Cover)
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