"El Tiki" (English: "The Tiki") is a song by Colombian singer Maluma from his album Pretty Boy, Dirty Boy. Sony Music Latin released it as the album's first single on 31 March 2015. The song received
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 0x120d1c8ea904acdab0a2b6eb81523eb1ac01c11f98721c82ebd6a11e1c636dd5. Chain 2 (Bitcoin): anchored in block 953922 (2026-06-16T09:36:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b94eb7e-347e-4992-9eeb-8943dd66286f.json and https://artists.proofprofile.net/proofs/artist/1b94eb7e-347e-4992-9eeb-8943dd66286f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.