1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd8e9f5c381d2123b94180b796babb1d7bd5fe2b5894cd1927b35778a030871. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90ea8fbb-770a-4c93-879e-81add5e918e5.json and https://artists.proofprofile.net/proofs/artist/90ea8fbb-770a-4c93-879e-81add5e918e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Storm and Sign Banging Against the Metal Post
Deeper Sounding Vacuum Cleaner [Stationary]
Hand Held Vacuum Cleaner [Non-Stationary]
Messy Floor Vacuum Cleaner [Non-Stationary]
Messy Floors and a Weaker Motor Vacuum Cleaner with a deeper drone [Non-Stationary]
Old Rattly Vacuum Cleaner [Non-Stationary]
Stronger Motor Vacuum Cleaner with high pitched motor tones [Non-Stationary]
Whirly Weak Motor Power Head Vacuum Cleaner [Non-Stationary]
Wide Area Vacuum Cleaner [Non-Stationary]
Factory Sounds for Background and White Noise
Refrigerators and Generators for Background Sounds and White Noises
Shipping Yard Sounds for Background Sound and White Noise
Seagoing Ship Along Coast with Low-speed Engine
White Noise and White Noise Alternatives