Brotherhood or The Brotherhood may refer to: Family, relationships, and organizations Fraternity (philosophy) or brotherhood, an ethical relationship between people, which is based on love and so
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 0x21f7bd0b2dd1f93dbeeed6f84aa0616e8bdfbac0d987f798bd840f9eb3f0bb22. 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/5f4bfce2-f311-4708-80d0-ccb42cae0cce.json and https://artists.proofprofile.net/proofs/artist/5f4bfce2-f311-4708-80d0-ccb42cae0cce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).