Ambor () is a rural locality (a village) in Cherdynsky District, Perm Krai, Russia. The population was 40 as of 2010. There are 3 streets. Geography Ambor is located 55 km southwest of Cherdyn (the
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 0xd4a54e5e630c2b3ebbef638ed5e744b0e4f20ec85ff59ce07372f1048c170f74. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b75a56e-d920-4e8a-a877-b30811ab7635.json and https://artists.proofprofile.net/proofs/artist/0b75a56e-d920-4e8a-a877-b30811ab7635.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).