Gregory or Greg Carroll may refer to: Greg Carroll (Australian actor), Australian actor Gregory Carroll (R&B singer), American R&B singer Gregory Carroll (tenor), American opera singer Greg Carroll (i
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 0xb561ba5b9b27f361f8a7637f992b8c2737d636af9eeb950124e7c1fb09ec71d1. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52ad41ee-cedb-4067-98b8-ad5f75cf674b.json and https://artists.proofprofile.net/proofs/artist/52ad41ee-cedb-4067-98b8-ad5f75cf674b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).