Proteasome maturation protein is a protein that in humans is encoded by the POMP gene. It is a short-lived maturation factor required for 20S proteasome subunit biogenesis. A single nucleotide deleti
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 0xe4ef7856f567c589f7be8a106b58044d48e18d242545166806339169238dd03f. Chain 2 (Bitcoin): anchored in block 954038 (2026-06-17T02:57:22Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e0f6941-8e67-44c8-a3ed-c676f73a2faa.json and https://artists.proofprofile.net/proofs/artist/3e0f6941-8e67-44c8-a3ed-c676f73a2faa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).