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 0xc1007f5217248be767979ffb8118c4bd43ea2249035d96a49582b8b9a13515dc. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab5e72de-0447-4f7b-8c27-3dfd386cab9e.json and https://artists.proofprofile.net/proofs/artist/ab5e72de-0447-4f7b-8c27-3dfd386cab9e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Verdadera Historia de Todas Mis Mentiras
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 0xc78a7d8565560c3f71929d9e51085c705889678e48087e5d09949a41cb2ef73e. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:57:03Z), 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/ES71G1937220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3039a239eb812ae7902a89b9bf813a65e7c6cc46c34f6fd79d65d744a8cd9cc. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/ES71G1937221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4433e3507bf3b42eb7def7f4e758007f17a7651a8fce262ebfaa9a6f6bae80d. 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/ES71G1937222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0076e13d449b0373886fd6f14303c1ce53b81072aad205a51437de6bde55c138. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES71G1937225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101f4cbd7b4374fe97f3c6995b018f12b2456d0519227ad195393bc3d9b38838. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:00:22Z), 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/ES64E2406955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d3c5f71de4ae924f3ed7b40e8a303159ca5f7260f81c5a046ede45bd423758. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM6MZ2099488.