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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cb321c34ca8abcae24581e17fd39cab205c94d7ce5fb100a5b912893e13d73. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0995316d-dd3d-4151-a26a-6249ec2342dd.json and https://artists.proofprofile.net/proofs/artist/0995316d-dd3d-4151-a26a-6249ec2342dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pink Noise Sound for Sleeping (No Fade for Looping)
White Noise Heartbeat (No Fade for Looping)
Restful Brown Noise (No Fade for Looping)
Really Deep Brown Noise (No Fade for Looping)
Rain Forest Crickets and Rain (No Fade for Looping)
Lighter Grey Noise and Tone for De-Stress
Baby Music: Help Your Baby Sleep Through the Night
Lullaby Number 1 With Heartbeat and Gulls
Heartbeat Drone Rain (No Fade for Looping)
Heartbeat City Rain (No Fade for Looping)
Sounds for Your Sleep Library (Brown Noise)
Sounds for Your Sleep Library (Deep Rumble Noise)
Sounds for Your Sleep Library (Air Con Sound)
Sounds for Your Sleep Library (Rainfall)
Sounds for Your Sleep Library (Soft Rain)
Sounds for Your Sleep Library (Cabin Crew)
Sounds for Your Sleep Library (Sshh Soft Rain)
Rain Sounds for Meditation Under an Umbrella
Pouring Rain With Far Away Storm Loopable No Fade
Pouring Rain Closing Storm Loopable No Fade
Heavy Rain Under the Brolly Loopable No Fade
Pouring Rain Slowly Clearing Loopable No Fade
Just an Umbrella In the Pouring Rain Loopable No Fade
Ultimate Water Sounds Loopable With No Fade
Ultimate Chill Water Sounds Loopable No Fade
Ultimate Soft Water Sounds Loopable No Fade
Ultimate Umbrella Sounds Loopable No Fade
Ultimate Rain On A Car Roof Sound Loopable No Fade
Ultimate Festival Tent Water Sounds Loopable No Fade
Ultimate Rainy Storm Sounds Loopable No Fade
Music to Help You Sleep (Rain and Engine)
Classic Baby Sleep Music (Umbrella Rain)
Classic Baby Sleep Music (Idle Car Engine)
Essential Thunder & Rain Sounds for Sleep
Summer Launderette Cooling Sounds for Sleep
Parent Sleep Help Tunes (Airplane Cabin)
Parent Sleep Help Tunes (Air Con Cooler)
Shhh Baby Rainy River (No Fade for Looping)