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 0x7a35670aa92a2d40dfce9fa8ca3864311b4d1d0cf31deb04fe6133786d141e87. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbaee108-95a7-4a9b-ac13-824d1868572a.json and https://artists.proofprofile.net/proofs/artist/dbaee108-95a7-4a9b-ac13-824d1868572a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I’m Gonna Pop Some Tags (Originally Performed By Macklemore)
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 0x262557f678f15e995d27336173336fff0a1a312fcec34b1620867b0bc071a3b4. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:45:06Z), 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/US3GD3521387.
Talk Dirty To Me (Originally Performed By Jason Derulo)
Why You Got To Be So Rude (Originally Performed By Magic)
Oh I Think I Found Myself A Cheerleader (Originally Performed By Omi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea59636e54ef37aa6742140ca23c8c432c75db7c07f1259d9ab157c74608dbfd. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/US3GD3522568.
Don’t Believe Me Just Watch (Originally Performed By Bruno Mars & Mark Ronson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5284863cdac43787182bd379a5f590f2ea784f890daacb98fb0db9cf53c57cb2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T03:47:06Z), 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/US3GD3522613.
So Blame It On The Night (Originally Performed By Calvin Harris)
Like The Ceiling Can’t Hold Us (Originally Performed By Macklemore)