Terma can refer to: Terma (religion), traditions of revelation in Tibetan Buddhism, Bön and the Greater Himalayan region "Terma" (The X-Files), an episode of The X-Files Terma A/S, a Danish company T
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 0x34a0e86ad813c66dbad2e46e7a46622fd3241e5af4bdac9eefc70a2cab1ce80d. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3928077-6c87-4957-b5b4-efa6adf4cac3.json and https://artists.proofprofile.net/proofs/artist/d3928077-6c87-4957-b5b4-efa6adf4cac3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).