Isabelle Rezazadeh (born 28 March 1995), who is known by her stage name Rezz (stylized in all caps), is a Ukrainian–Canadian DJ and record producer from Niagara Falls, Ontario. Rezz released her debu
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 0xe415149ba0c324d991fefd7f90d1afb5ec3a1ed3211809b74281286a7deb520e. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0638904e-bd29-49b5-852c-7d2e59a06371.json and https://artists.proofprofile.net/proofs/artist/0638904e-bd29-49b5-852c-7d2e59a06371.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).