(, Spanish for ) is a children's museum and science center in Downtown El Paso, Texas, United States. It was funded in part by El Paso bonds in 2012, and after several years of delays, it opened on A
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 0xf254b99296ef62ac73722083b45bf2b79662031fd4de86c591868775e6daad02. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0948ad62-643b-4be7-8421-2afb8e75ffc3.json and https://artists.proofprofile.net/proofs/artist/0948ad62-643b-4be7-8421-2afb8e75ffc3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).