Mazz ( ) was an American Tejano band formed by Joe López and Jimmy González in 1978 in Brownsville, Texas. The band was made known for their unique and innovative form of cumbia and ranchera. After mo
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 0x0327da73694fb319f973e9a45fab8fbccafc5fe033df461aa89708b6d8133bf6. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/218e1fdf-bbce-490b-b913-561d8419ef84.json and https://artists.proofprofile.net/proofs/artist/218e1fdf-bbce-490b-b913-561d8419ef84.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).