G17 may refer to: G17 Plus, a Serbian political party , an Auk-class minesweeper of the Mexican Navy Bandy World Championship G-17, a sport competition County Route G17 (California) Glock 17, a
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 0x3c0fc4709dcce385517753643dbb39ab966d4c35f2dd2e3fc3e29aeff7b05bf1. Chain 2 (Bitcoin): anchored in block 953895 (2026-06-16T05:46:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f64f3ef-09e0-41b5-a6c7-22e918037327.json and https://artists.proofprofile.net/proofs/artist/0f64f3ef-09e0-41b5-a6c7-22e918037327.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).