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 0x1367830f30b5dd837a6bc5a83a9fd2b5b82c203cea323f147d486bf7c1e6581d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52c82c2c-bee8-4093-90b5-0e8d7839172d.json and https://artists.proofprofile.net/proofs/artist/52c82c2c-bee8-4093-90b5-0e8d7839172d.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 0x074371ac395c7a4ed8a2afd9d891c0ba0d4aef35847edcbd44d8c4219b1567db. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZLBC2505898.
but peter you're going to die (Void In Blue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9241c64dedbcfc587951ad11978311303d3f52f9e6a7793bb853198fa1709154. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:16:58Z), 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/QZLBC7839203.
Bout it - Instrumental (Super Slowed + Reverbed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eae2c3e118491a02cd16d995f0ab260fb8874a517f2b1b7d7a2811b2bb8405b. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZLBC4940354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9233b5ac27ece71b202bb2165960ff5bedab65e41416842442b2fda2d5574626. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:00:46Z), 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/QZLBC3784032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ecdc34a6541ef83903416f92c6f4fc2f2ce707575715d276befc9baba7a342. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:29:18Z), 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/QZLBC2506604.