Nostromo: A Tale of the Seaboard (1904) is a novel by Joseph Conrad, set in the fictitious South American republic of "Costaguana". First serialized in monthly installments of T.P.'s Weekly, in 1998 i
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 0xfba1ad64510d05a545559e6fb9a1e0f3a1fb0cf78c49e8974e18d8e59d19ec01. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6bbe8cff-dc3b-4b67-a562-3385543d87f4.json and https://artists.proofprofile.net/proofs/artist/6bbe8cff-dc3b-4b67-a562-3385543d87f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).