Maks is a settlement in the administrative district of Gmina Chmielno, within Kartuzy County, Pomeranian Voivodeship, in northern Poland. References Category:Villages in Kartuzy County
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 0xd36ab857eaf65c8e17bd9bdea3d870d89d24b34285665893d343fa94138aab99. 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/8ad5ac58-e929-4f7b-baab-3ff4b0581381.json and https://artists.proofprofile.net/proofs/artist/8ad5ac58-e929-4f7b-baab-3ff4b0581381.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).