Red Sky may refer to: Red Sky (EP), an EP by Thrice "Red Skies", a song by the Fixx from Shuttered Room "Red Sky" (song), a song by Status Quo from In the Army Now Red Sky (2011 film), a 2011 Greek fi
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 0x97331f635e033f640e40ac7f55193d63fda7ca4cf8d9f3f45d423ce3994361c8. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/955d956b-116f-4642-a4b1-b88cbe639832.json and https://artists.proofprofile.net/proofs/artist/955d956b-116f-4642-a4b1-b88cbe639832.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).