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 0x60c98d4c954541037d94e12c9872af25cb55fb0b5ea72ce7fc5297c1cf6d6cbe. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2a17474-9044-4f63-bc86-4c010672d75b.json and https://artists.proofprofile.net/proofs/artist/e2a17474-9044-4f63-bc86-4c010672d75b.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd223fb95f2e5e7838f96fb975bca8fa3a4455532fe9522de92af2ffc9e4284d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZHN81959082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf3a2e7cc4442fe9722c5ddf77ca993bce03639a9c216cf1c3d551d91f0a6bf. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QZTAT2248168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557efd80224bf688fa669fa7429c4e5fc026a4e053404ea00a313be09ea2a4d2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:00:39Z), 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/QZMER2420054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4896b241d1f6c0b040f2e8348caf4ed8f555bbe219b370e26e24ddc72d7de3ac. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZTB32449579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d5cd49021715a38ec517b7638588839be4b33c8b40c2d3a429aecef9376030. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:55:49Z), 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/QZTB52470311.
NA JEDNEGO (U-BOOT 96) [Deep Dive Version]