A mother culture is a term for an earlier people's culture that has a great and widespread influence on some later cultures and people. Though the original culture may fade, the mother culture's influ
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 0x23390a28070cd11f75cba203dd037065447e343ff834196cd059ab11d3674103. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d1f6ae5-af17-4113-b3b9-512336745f2f.json and https://artists.proofprofile.net/proofs/artist/7d1f6ae5-af17-4113-b3b9-512336745f2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).