Gat or GAT may refer to: Places Gat, Iran, a village in Khuzestan Province, Iran Gat, Israel, a kibbutz in Israel Gat Rimon, a moshav in Israel Gát utca, a street in Ferencváros, Budapest, Hungar
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 0xab879544c2937422e6845d01090aa20a8c693f1072b7b46af2cc88507ae7709a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07e3ee32-c435-4adb-a8c2-2adc8c6a50b2.json and https://artists.proofprofile.net/proofs/artist/07e3ee32-c435-4adb-a8c2-2adc8c6a50b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).