Jeremiah ( – ), also called Jeremias, and occasionally in older English texts Jeremy, was one of the major prophets of the Hebrew Bible. According to Jewish tradition, Jeremiah authored the book that
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a731af7b0040f4ae36603444f4053995f7d542d4c367731fafba19c5bcb46f2. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c14e1d1f-b90c-4e24-ac96-79e43762e17f.json and https://artists.proofprofile.net/proofs/artist/c14e1d1f-b90c-4e24-ac96-79e43762e17f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).