Tomi may refer to: Constanța, a city in Romania, also known as Tomis or Tomi Tomi, Okayama, a village in Japan Tōmi, Nagano, a city in Japan Tomi (name), a given name (including a list of people
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 0xb5fed5a687b70b21a9785c57cd9dc86d69fb7240b0310c18477fe19e746a24fc. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9738948c-1c3e-4f1e-bb37-a22ab9bfde11.json and https://artists.proofprofile.net/proofs/artist/9738948c-1c3e-4f1e-bb37-a22ab9bfde11.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).