Derek Ryan Smith (born March 10, 1987), known professionally as Mod Sun (stylized as MOD SUN or MODSUN), is an American singer, songwriter, rapper and musician from Bloomington, Minnesota. He has rele
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 0xd8749b28ff32d4900724e753daba465aa1f06def7ff88f5f1e938d581c0ebb23. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3156e5b6-62b2-4883-9fb5-7ad69a06b178.json and https://artists.proofprofile.net/proofs/artist/3156e5b6-62b2-4883-9fb5-7ad69a06b178.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).