Kozy (German: Seiffersdorf, Seibersdorf, Kosy (1941–45); Wymysorys: Zajwyśdiüf) is a large village with a population of 12,457 (2013) within Bielsko County, located in the historical and geographi
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7234b2319da96c4aff1a12a848818d694f3dbcc17d0dacbf2eed3c448ed3d438. 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/c36dfaa7-bc5a-4bc2-9dc2-6950aad9e82b.json and https://artists.proofprofile.net/proofs/artist/c36dfaa7-bc5a-4bc2-9dc2-6950aad9e82b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).