Murda may refer to: Murda (rapper), Önder Doğan (born 1984), Turkish-Dutch rapper "Murda" (song), by Candyland 2015 "Murda", a song Lil Wayne from Free Weezy Album, 2015 "Murda", a song by Chancellor
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 0xf4ea992d5764b428679fc8656fb9f88b6595b62e8fa47170b17f83f9b05bc189. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1e3d76c-7e13-4724-9e8e-d4fc167f5387.json and https://artists.proofprofile.net/proofs/artist/d1e3d76c-7e13-4724-9e8e-d4fc167f5387.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).