Alaris was the brand name of the regional rail network run by the Spanish national rail company Renfe Operadora that connected the major cities of Madrid and Valencia, and Barcelona and the main citie
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 0xbcbf1b9c0b9dbfe55770f23f2b3c04dc291c8875051d7b32b30dd5ad6e0b6bbb. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95fcd60e-8030-46ac-b83a-35b90fa45619.json and https://artists.proofprofile.net/proofs/artist/95fcd60e-8030-46ac-b83a-35b90fa45619.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).