11:11, Eleven Eleven, or variations of the two, may refer to: Dates 1111 Armistice of 11 November 1918 or "the eleventh of the eleventh" November 11 November 1911 November 2011 Music Albums 11:1
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 0xb3b212027bf97228c10fdfdbc5552e7224b332ba3b2c22f41fe8958d8c955509. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6db113cb-8985-4e28-b4d5-931d0d1d1d46.json and https://artists.proofprofile.net/proofs/artist/6db113cb-8985-4e28-b4d5-931d0d1d1d46.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).