KRT may stand for: Broadcasting Karadeniz TV (KRT TV since 2014), Turkey Radio Tokyo (KRT; 1951–1960), now known as TBS, a Japanese commercial broadcaster Transport Kanawha Valley Regional Tra
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 0x2878843cddd1f5b672d7e4a816bf3fdcb4490f6181f61ca9e68f5480550f1e5f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ebdd0be-f1de-46bf-81df-f027035f07c8.json and https://artists.proofprofile.net/proofs/artist/8ebdd0be-f1de-46bf-81df-f027035f07c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).