Mavar is a UK-registered charitable organisationCharity Commission - Mavar providing professional support to people who have left or want to leave the Haredi Jewish community. It provides financial, e
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 0x8a868fe813814b4d3f69428bc8d249ea46654695572407bd3f18437431e8aa66. 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/6a64c9b5-9e2f-4a3f-b1bd-ebcce37aa4cc.json and https://artists.proofprofile.net/proofs/artist/6a64c9b5-9e2f-4a3f-b1bd-ebcce37aa4cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).