Mental Floss (stylized as mental_floss) is an American online magazine and digital, print, and e-commerce media company focused on millennials. It is owned by Minute Media, an international digital me
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 0x9249327e079a98737170f33c7986d075c7c8e69af92a0399c746c68f695da219. 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/482985fb-1e57-4f2a-b84d-db78bd37dae1.json and https://artists.proofprofile.net/proofs/artist/482985fb-1e57-4f2a-b84d-db78bd37dae1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).