Zuu (stylized in all caps) is the fourth studio album by American rapper Denzel Curry, released through PH Recordings and Loma Vista on May 31, 2019. The title is a nickname for his home city, Carol C
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 0x6e4cf251653bc166d619bbbf4b0735f52a81287ca1b55de196e8dd29574461a9. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2666c1c-29bb-496d-8480-a0cd8f2cf6f3.json and https://artists.proofprofile.net/proofs/artist/d2666c1c-29bb-496d-8480-a0cd8f2cf6f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).