1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xc530316246ea45bbfaa3492e38f57b2abec167e27d6518380afb8e85c57bbefa. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16e181b7-43ac-4d62-8773-78bc98a7137f.json and https://artists.proofprofile.net/proofs/artist/16e181b7-43ac-4d62-8773-78bc98a7137f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
It Don't Mean A Thing (If It Ain't Got That Swing)
It Don't Mean a Thing (If It Ain't Got That Swing)
Medley: Songbird / April In Paris / I've Grown Accustomed To Her Face
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 → block OTSBitcoinBlock must exist at that height 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 0x8cfb974c1fd6618c242bb8be39702a94a779d4731510cccc8d4ca180887fb031. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLR031400008.
For The Love Of Ivie - A Tribute To Ivie Anderson
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8797011efc4bfee3aefa7df162cd9b25f3e0edf19ef25c95e32e1eb3a79c456f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLB150800035.