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 0x0d16efb913a8cecd2668c3bdc3a265f7e593ca37ed5ffdfdb849083029ffa201. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91b2432a-f353-4443-a78d-66ad9916e1ff.json and https://artists.proofprofile.net/proofs/artist/91b2432a-f353-4443-a78d-66ad9916e1ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
DAINEY HATAIMA (Purna Bahadurko Sarangi)
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 0x620322de365768e04306ce3c88f44a13205fb12ab004b1aacc5e4e4ecc3cafbf. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZZ8A2428257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39633325d3a7737da829cc70c6224996b73dcb60dc5fa1a08731a530bec9d775. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZZ8A2433749.
RAIYA CHANDIKO (Purna Bahadurko Sarangi)
Raiya Chandiko (From "Purna Bahadurko Sarangi")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c24c71a8c8b942d5c037bd5fd41f85a031d4cdc16a5c13211dc37e0d49f3e3. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:23:18Z), 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/QZZ8B2467480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30574acf6a9ffcdedc77b3892e57694cf482581671c27bd31e4c92120bf72573. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZZ8B2441923.
Marau Jyanle (From "Abhimanyu Chapter 1")