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 0x34999f354bfb0a56c2eaefa5922679fa35e57db78a1f853e389234494c7896e4. 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/49110e1e-76f3-4913-9dbe-ad9b8c1d5c28.json and https://artists.proofprofile.net/proofs/artist/49110e1e-76f3-4913-9dbe-ad9b8c1d5c28.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 0xdb4319b0b52e4443ad16fad4633598e0edc04c6c06adfad195d8a6c9788cc919. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/GBMJG1300551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321f384d11a00cf59111db6898a4719cb7fdf862e0a80b254044d2ab012e11bc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBMJG1503545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2511585be1eb164b47cd571ff1e04bac9d9fb2bd714feff224b9161e3a8cc194. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:48:22Z), 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/NZRI11503020.
We Are Not Afraid (We're Fucking Terrified)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90b46a3ae619db961054f73826aec4ba292aeee1da3931a80e8e4da1849a58c. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:58:14Z), 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/NZRI11503021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab48e0eb350de83f14bdb9bf6495378d245931ec4f255e4c1b8436daf3e5666. 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/GBMJG2123060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909ae9129a1d162b3939c742110eabf40203d41c3bb739ac0223cefd5f1de2d4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:21:07Z), 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/GBMJG2405289.