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 0x2981ac512ff26d27b26ca4c859100a7a03b591ead058e7d4eafa541a09fcf000. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f0dbd45-cb56-4696-9c85-ca7f57fda356.json and https://artists.proofprofile.net/proofs/artist/6f0dbd45-cb56-4696-9c85-ca7f57fda356.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 0xe2212bcc07b427749667e11b88af7990fbd7bf9256631944fd6d3ca5b8a6fc02. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:04:33Z), 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/GX3HH2136239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449f3fb1706552633ca8b7e9b2e7ae6941ff51212137cddd5dcffdbe78ce3ab2. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/GX3HH2136240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82386d97c2d4bc6e4e5248834ee164a30c8a8cf03e2d94cd97efcb120d041119. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:30:09Z), 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/GX3HH2136244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cb010877ca8db2156ae51bd2bb58c2fc5f4e9661301c2ec190889ef27c1bde. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:04:26Z), 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/GBSMU0022602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9fe9ca53b0d039a483b56fed63d727d600a53baf16ee6171089e93866bfebc. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GX38U2253989.
Sharon's Medley 35: Yesayye / Ghanudavu / Preminthunu / Prabhu Sannidhilo / Nee Rajyam / Nenunu / Ascharyakarudu / Santhosha Vastram / Neeku Sati / Premapanche