Deep clean or deep cleaning may refer to: Deep clean (COVID-19), a sanitation technology Deep Cleaning, an episode of Superstore (season 6) Scaling and root planing, also known as deep cleaning See
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 0x5c2a0878d4a5b0501db61aa5d163dc4c751fbada3827cc5456c534ead8fd7ab3. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f463ae7e-2dea-44d9-8e6f-a6c0f71c33b3.json and https://artists.proofprofile.net/proofs/artist/f463ae7e-2dea-44d9-8e6f-a6c0f71c33b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
LIBRARY OF ALEXANDRÍA (Instrumental Version)
LIBRARY OF ALEXANDRÍA (Versión Instrumental)