Gassal (The Late Offices) is a Turkish drama and comedy web series produced in 2024 and released on TRT's streaming platform tabii. Ahmet Kural stars in the lead role joined by Hande Soral in the seco
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 0x7534cd74717830461185fdb423ce0f32cd551a74c0fd46c508dd82842320f75d. 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/76da1bde-961c-4665-a51a-8f1ff71c2a4d.json and https://artists.proofprofile.net/proofs/artist/76da1bde-961c-4665-a51a-8f1ff71c2a4d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).