Colvin may refer to: Colvin (surname) Colvin family, the Anglo-Indian administrators and soldiers Colvin Mountain, a ridge in Alabama Colvin Township, St. Louis County, Minnesota, a township Col
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26a01c91d78fac50fbc4eec2fce2f86310121008cff2b33546e032f3afad48a. Chain 2 (Bitcoin): anchored in block 953976 (2026-06-16T16:55:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b7a377c-4af8-40aa-b780-e2af87961aa2.json and https://artists.proofprofile.net/proofs/artist/2b7a377c-4af8-40aa-b780-e2af87961aa2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).