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 0x78476cd1bcfaa294a7ec6a02d2755fe96ea3925ac8cd45e481170bb5480290c0. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36fcd5c2-8868-4e91-a1b6-512e19a9f15e.json and https://artists.proofprofile.net/proofs/artist/36fcd5c2-8868-4e91-a1b6-512e19a9f15e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Canciones, Cuentos, Historias, Adivinanzas, Trabalenguas, ... para Jugar Cantar y Bailar (Las Historias Del Abuelo Milcuentos A La Una, a Las Dos y a Las Tres)