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 0xb19c17a1a4e2f174098c35e19a1c9d8f784ab7a858cd74918d6c1fe0f6d058b1. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a06e85a4-d1cb-4dc1-9d8f-f0498b53b68e.json and https://artists.proofprofile.net/proofs/artist/a06e85a4-d1cb-4dc1-9d8f-f0498b53b68e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Love is Everything! (Big Stir Single No. 117)
Queen of Yesterday / Where Were You My Friend
Queen of Yesterday (Big Stir Single No. 126)
Psychadilly Circus (Radio Edit) (Big Stir Single No. 144)
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 0xcb4064c02b1c3648d3f71297cdd26b84a265e8e79de265e3b0000bae87e113a1. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:25:01Z), 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/QZSUA2100170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3892ab3dac48d624bebde4e9ac11a44ce62714e164f58b6bd5b0b94eeb1dd2bb. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZSUA2100881.