Filadelfia () is the capital of Boquerón Department in the Gran Chaco of western Paraguay. It is the centre of the Fernheim Colony. The city lies about northwest of the capital Asunción. With a popul
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 0xe2644b51f98177a2437652f5a2e817f901f30761b7cc42482563c3daa9de24de. Chain 2 (Bitcoin): anchored in block 953923 (2026-06-16T09:51:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cc0c577-9e62-4d62-af09-64c42e95507f.json and https://artists.proofprofile.net/proofs/artist/1cc0c577-9e62-4d62-af09-64c42e95507f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).