David Miguel Reyes (born November 29, 2006), known professionally as DD Osama, is an American rapper. Career In 2021, Reyes released his first song "Aftermath" alongside his brother Notti Osama, an
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 0x895de3d45718ad96a381a3a63850ca10ede547392dad51201076db5305afb33e. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d033594-099d-4557-baf8-e8f80454030f.json and https://artists.proofprofile.net/proofs/artist/9d033594-099d-4557-baf8-e8f80454030f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).