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 0x89569bbdd594bd885e896754be3ecc2597b94ee75a85cf07e28d5158899317d1. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c297c4b3-5bf5-4f72-bccb-b0a606a9daf5.json and https://artists.proofprofile.net/proofs/artist/c297c4b3-5bf5-4f72-bccb-b0a606a9daf5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tallava , Kuku nane po më dhemb dora , N'drasë të vekut , Jalla shofer (Potpuri)
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 0x42900612dbf045cccde18f51af85a027cb630d3a6869280c59372c3331294751. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:44:09Z), 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/DGA0T2422412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b82fe90e0021eac76aa4f022a318b258aaa6c1fec0f09f17fd41d86636581ca. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:11:14Z), 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/FR2X42525298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6319b5c67651645164ae6780f2b536753d08bcb707a5cba814fe7d65ccc3cf. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:48:23Z), 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/FR26V2092170.