Festim Arifi (; born 28 January 1984), known professionally as Lyrical Son, is a Kosovan rapper and songwriter. Born and raised in Pristina, Arifi is credited as a viable hip hop artist in the Albania
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 0xf780e26ab85e6a29344514b62e6743a18d610ba236546d7a27f7dc39b215a10d. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14ae38e6-dd2a-40d6-91af-b2245a289bd0.json and https://artists.proofprofile.net/proofs/artist/14ae38e6-dd2a-40d6-91af-b2245a289bd0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).