Anurag Kulkarni, Ramya Behera, Mohana Bhogaraju, M Haripriya
{"copyright_id":"0x5a64bff30a2b9ff279b89b8d4eb8b7452b2e6b9d597dd8b54f8f938a9e3b095d","name":"Anurag Kulkarni, Ramya Behera, Mohana Bhogaraju, M Haripriya","registered_at":"2026-06-21T11:29:39Z","symbol":"NIM1912072","token_address":"0x4da56cb3ff2ef16a1aa1adb03761a8c47417bc9c","type":"artist","uuid":"ec1b9f3c-bdf8-4bea-acc9-b2ef596d13e4"}
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 0x5a64bff30a2b9ff279b89b8d4eb8b7452b2e6b9d597dd8b54f8f938a9e3b095d. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ec1b9f3c-bdf8-4bea-acc9-b2ef596d13e4.json and https://artists.proofprofile.net/proofs/artist/ec1b9f3c-bdf8-4bea-acc9-b2ef596d13e4.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 0x7e8ce0334a214ae8fd8a0ff3c9d73d13a936844644f5e1e406b7063aad01a808. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/INA091816201.