__NOTOC__ Skat may refer to: Organisations SKAT (tax agency), the Danish tax authority SKAT (television) (), a Bulgarian national cable television company, with the channels Skat and Skat+ Skat me
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 0xa014e76b785fb5307558b03f0b0519505e3811388364aa0ef2c6f673bc59f019. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bed5259a-b188-478e-8eb9-ef771a3cf266.json and https://artists.proofprofile.net/proofs/artist/bed5259a-b188-478e-8eb9-ef771a3cf266.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).