Irma Consuelo Cielo Serrano Castro (; 9 December 1933 – 1 March 2023) was a Mexican singer, actress and politician. Famous for her "tantalizing" "untamed spitfire" voice, she was one of the most noted
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 0x10397c1d10b862ea7dbfe9d6e67a8d7193f100cb1b809ad90ba86aca25e5da28. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1706ed1e-aaa6-470f-bfc8-ece0a6e19bad.json and https://artists.proofprofile.net/proofs/artist/1706ed1e-aaa6-470f-bfc8-ece0a6e19bad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).