Sin miedo (meaning Without Fear) is the fourth studio album by Spanish singer Soraya. Album information It is the album in which she has been more involved with, and the one which defines more her p
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 0xd2624efa3d90abbfed1cc00fb083a6d77a6b99cdaf0cd9dcb8a8bad8ccb39f8d. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5206fc8-3464-4486-b666-438484f9a2df.json and https://artists.proofprofile.net/proofs/artist/a5206fc8-3464-4486-b666-438484f9a2df.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.