1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x65b01b8950b1f322e1ba8359fd7919dce05af07005cdff8a2cb5c8e73c2040c0. 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/544b2b10-42a2-44fa-b9f3-50416e44a6b7.json and https://artists.proofprofile.net/proofs/artist/544b2b10-42a2-44fa-b9f3-50416e44a6b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
De boca en boca. Folklore popular español. Canciones del campo
Antología de la Canción Sefardí (Anthology of the Judeo-Spanish Songs)
Cuando el Rey Nimrod: Nacimiento de Abraham
Mi Padre Era de Francia: La Malcasada del Pastor
Una Tarde de Verano: Don Bueso y Su Hermana Cautiva