The Kasenetz-Katz Singing Orchestral Circus was a bubblegum "supergroup" created by record producers Jerry Kasenetz and Jeffry Katz, consisting of various Super K Production groups. Original cast rec
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 0x67941bf608ff8a2ea6443da16b66cebef4ee9dcca516c2e4870823c30ee07bdc. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/893fbd33-f4b3-43d9-8e69-d02a109ce724.json and https://artists.proofprofile.net/proofs/artist/893fbd33-f4b3-43d9-8e69-d02a109ce724.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Kasenetz-Katz Singing Orchestral Circus