{"copyright_id":"0x6ddaaaee1ef77cea455adddf4ff9e97ca89dcba86cdeafd52ee4aeff3a3f9eab","name":"Purnima Mandi","registered_at":"2026-06-14T22:14:55Z","symbol":"NIM0592894","token_address":"0xb5a871d590aadcf4cf76c578b2a2d4bfa2a14751","type":"artist","uuid":"a8a99f46-67bb-48f7-b11a-d96c9b4cff47"}
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 0x6ddaaaee1ef77cea455adddf4ff9e97ca89dcba86cdeafd52ee4aeff3a3f9eab. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8a99f46-67bb-48f7-b11a-d96c9b4cff47.json and https://artists.proofprofile.net/proofs/artist/a8a99f46-67bb-48f7-b11a-d96c9b4cff47.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 0xe894e16c681c88659c0b2dccb3a65944bce6063334154eb9df9bcb5e3ef95e4e. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/DGA0M2492913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3878a59b7e8f6937585d95dd5cfac966bfc3ecc40dd71e207e5ee958f456e687. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/DGA0M2468416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7611b0292ce4958981c85ce938e82206b1708e19887189405b745a69596dbd. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FRX282525981.