Taha (Arabic: طه‎) is an Arabic male given name. It is the name of the 20th surah of the Quran, سورة طه ("surah taha"), and is considered by some to refer to the prophet Muhammad. Taha may refer to:
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 0x717fecad8e71a686638e843e14d854e75ca5341cc51b43ed84bc01a0bd91dbd1. 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/ece9169a-de37-43f1-92e7-1a9780e13419.json and https://artists.proofprofile.net/proofs/artist/ece9169a-de37-43f1-92e7-1a9780e13419.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).