Black moss may refer to: Bryoria fremontii, a lichen eaten by First Peoples in North America; Fat choy (Nostoc flagelliforme), a terrestrial cyanobacteria eaten in Chinese cuisine; Spanish moss (Till
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 0x1823ba82da45e43dc3ac984d14c378fd230fe16f3ae262a0576eb0d357f9b19b. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc9c7819-fd5c-4bf1-81a6-d1956e1cc94f.json and https://artists.proofprofile.net/proofs/artist/cc9c7819-fd5c-4bf1-81a6-d1956e1cc94f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).