Gosh or GOSH may refer to: People Surnames Efrat Gosh (born 1983), Israeli singer-songwriter Mkhitar Gosh, Armenian scholar and priest Salah Gosh, National Security Advisor for Sudan Given named,
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 0xc4a13d65d7942be2d17e7f796474fce1870a8ccbff135b9007a28302b4aa14a2. Chain 2 (Bitcoin): anchored in block 954125 (2026-06-17T18:27:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b6e8a2d-88e3-4aca-9838-d79ee9364ab6.json and https://artists.proofprofile.net/proofs/artist/7b6e8a2d-88e3-4aca-9838-d79ee9364ab6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).