Roberto Arlt (April 2, 1900 – July 26, 1942) was an Argentine novelist, storyteller, playwright, and journalist. Biography Roberto Godofredo Christophersen Arlt was born in Buenos Aires on April 2, 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 0x69049f0f779a9948b31a2aa0ef04044fbc9b287140c48c5d7ef81d0f68870679. Chain 2 (Bitcoin): anchored in block 953885 (2026-06-16T04:12:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b16e415-7615-4f86-8017-88f2a0af287c.json and https://artists.proofprofile.net/proofs/artist/0b16e415-7615-4f86-8017-88f2a0af287c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).