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 0x523a543d496e5c7edaa55a1c46d5d16e14089ee7319e6f72e14b2bd2955a8b0b. Chain 2 (Bitcoin): anchored in block 953743 (2026-06-15T04:52:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1a3634d-9ceb-4ce2-b67b-0101a34fe9a2.json and https://artists.proofprofile.net/proofs/artist/a1a3634d-9ceb-4ce2-b67b-0101a34fe9a2.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 0xb78e2825eca0f1e46bb40ce6885bbd3f90d89989d0bf552345e9ef70152a22d6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDA82043849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d66ccb46cc4b223150f31f07371e75eec8c4240705f69ce2958c8978b3808da. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZDA82029789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b279a88aa2714a6598d4d1d71f92fd66641a25695b6beeb244ae21115a563d4. 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/USCGJ2069668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b4b5d2d6440f08fdcfcc3a6b04ccdd7127f8531b0cff809abcc04092b1910d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USDY42001045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de4580c627c7a59411fb316089e40d3086fc8149254f2a3d6680b16275a7862. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:46:39Z), 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/QZTAT2199081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ae0d1dfe1a798c8302d0f5085714d7091d14662ac924f44e6d088ed849da30. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZTB82318278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444c4b5e0235dbcdb5fe792233d9589d4908b0cdf5514d0818b594a0c2b17898. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZHN32561737.
Georgiana & Suspect - Vreau să uit (GIEMSI Remix)