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 0xa2f2aa81917ea9d0e55a2b0137b41e0d2f2b9135e634a586e98f6219258075b4. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4612bd3f-3d47-4b90-a165-38b21da2d8dd.json and https://artists.proofprofile.net/proofs/artist/4612bd3f-3d47-4b90-a165-38b21da2d8dd.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 0x96c2f0ba64bf6ca6f757d99e922bc679bf9b83974378665dda9cabd77faaff86. 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/QM42K2263345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735d95f0b79b7eb08e899bf6c7cd1cb4a8a9b93ca5991dbc3dc59c891bceea9c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZMHL2231376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4437de549efe88ac0f78a04ccd2ede37ed29d3bdf7efc95bfb5b08517c3311. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:29:31Z), 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/QZWFU2481435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f32bd774c82f82e98e804979daf878168f247219e4ea761808245a7d7ecd47. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES92556198.
ıllıllı распятиемусорной ↯⃞ведьмы¯´•.¸¸¤ ≭⃞ ⚧⃞ ⚧⃞ 【⇊⃞ ☦⃞ ⟳⃞ ⚧⃞ ıllıllı
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedac18f2b45552a3feb8edcd17cd953387656e4a34e6355fbedc5a6b9f14199. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZWFM2439553.