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 0xb0e815d22c334c6df884d98bea9c576012fe0b25b433c995b508afae4035c8eb. 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/5e5161bb-e20f-40a8-a8df-fbf03845bb4a.json and https://artists.proofprofile.net/proofs/artist/5e5161bb-e20f-40a8-a8df-fbf03845bb4a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
This Woman (Pariah Music Studios Version)
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 0xf32da09d1f44ca88966830c690aafb80db4bc5630e119dc89698a8cfe2d555e2. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DEVN62000162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93675b4ec6e786441510ec8a61008a3bb4ed31cad2413b4b45d1d616e8d7ef62. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEZC62258115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93675b4ec6e786441510ec8a61008a3bb4ed31cad2413b4b45d1d616e8d7ef62. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEZC62258115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa146861ab0a553b38b832dabdd15c1dd276204fa8b2fda67cef82527c962482b. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/DEZC62575308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cab96adbdccb58fe301207c68728c483d5b39df60a5d4e0ce41caa7e64c0b20. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/DEZC62581668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8bcecf65958e833f5d8aeaaa89eca5e0949f3c788feee669aebc171e656e62. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:32:29Z), 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/DEZC62581669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2224f05efb6a89b12af7765ac53ce93ad1543918578308278689b546b02c78b4. 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/USY252500281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd3017ee49b3d79159ecfe80d992f867d5e8327af189b4e6ac8f293d67ebb64. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:49:38Z), 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/USY252500283.