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 0x323fa444a96781910d5efe6e7b9cbdf7182f7e624e81f56434f8567768639257. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd3e9182-909f-4513-b7ee-ef0991cbee99.json and https://artists.proofprofile.net/proofs/artist/bd3e9182-909f-4513-b7ee-ef0991cbee99.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Background Noise: Forest Lullaby River Creek Flowing Ambience 2
Background Noise: Calming Elevator Noise 2
Background Noise: Calming Elevator Noise
Background Noise: Relaxing Empty Room Noise
Background Noise: Relaxing Bird Chirping Sounds
Background Noise: Relaxing Empty Room Noise 2
Background Noise: Forest at Night Sounds
Background Noise: City Walk at Night Sounds
Background Noise: City Walk at Night Sounds 2
Background Noise: Harmonic Birds Chirping Sounds
Background Noise: Gentle Sounds for Restful Sleep
Background Noise: Gentle Sounds for Restful Sleep 2
Background Noise: London on Window Ambience
Background Noise: London on Window Ambience 2
Background Noise: Windy Weather Sounds 2
Background Noise: Open Window in Paris 2
Background Noise: Winter Snowstorm and Train Sounds
Background Noise: Airplane Cabin Ambience
Background Noise: Deep Focus White Noise 2
Background Noise: Highway Ambience at Night
Background Noise: Shopping Mall Indoor Noise 3
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Background Noise: Shopping Mall Indoor Noise
Background Noise: Soothing TV Static White Noise
Background Noise: Barber Shop White Noise
Background Noise: Peaceful Sunrise by the Lake Ambience
Background Noise: Soothing TV Static White Noise 2
Background Noise: Children Playground Sounds
Background Noise: Football Training Pitch Sounds
Background Noise: Festive Fireworks Noise
Background Noise: Football Training Pitch Sounds 2
Background Noise: Resting Spring Weather White Noise
Background Noise: Resting Spring Weather White Noise 3
Background Noise: Resting Spring Weather White Noise 2
Background Noise: Thunder and Rain Soundscape in the Forest
Background Noise: Hot Desert Wind Ambience
Background Noise: Spring Field Soundscape
Background Noise: Spring Field Soundscape 2
Background Noise: Suburban Neighborhood Ambience
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Background Noise: Horses Galloping Ambience
Background Noise: Airport Gate Sounds Before a Flight 2
Background Noise: Airport Gate Sounds Before a Flight
Background Noise: Busy Shopping Mall Sounds
Background Noise: Walk a Night with Me in New York Sounds 2
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Background Noise: Walk a Night with Me in New York Sounds
Background Noise: Busy Shopping Mall Sounds 2
Background Noise: Rustling Quiet Cornfield Sounds
Background Noise: Walk with Me in the Park Sounds
Background Noise: Front Seat on the Rollercoaster
Background Noise: New Year's Eve Fireworks Soundscape
Background Noise: Frozen Snow Melting Sounds
Background Noise: Baseball Game Match Ambience
Background Noise: Chilling River Sounds 2
Background Noise: Hotel Lobby Peaceful Ambience 2
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Background Noise: Creaky Ferry Ship Sounds
Background Noise: Hotel Lobby Peaceful Ambience
Background Noise: Volcanic Eruption Ambience 2
Background Noise: Gentle Little Raindrops on Umbrella Sounds 2
Background Noise: Volcanic Eruption Ambience
Background Noise: Gentle Little Raindrops on Umbrella Sounds
Background Noise: Babbling Fireplace Sounds
Background Noise: Babbling Fireplace Sounds 2
Background Noise: Enhancing Clock Ticking Sounds 2
Background Noise: Quiet Foggy Morning Sounds
Background Noise: Enhancing Clock Ticking Sounds
Background Noise: Deep Underwater Whale Sounds
Background Noise: Dog Walk in a Rainy Evening Forest
Background Noise: Convention Hall Conference Venue Ambience
Background Noise: Crowd Cheering White Noise
Background Noise: Immerse Busy Street Sounds
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Background Noise: Mountain Lake Breeze Ambience
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Background Noise: Golf Cart Ride Noise 2
Background Noise: a Walk in the Botanical Garden
Background Noise: a Walk in the Botanical Garden 3
Background Noise: Hot Desert Wind Ambience 3
Background Noise: Hot Desert Wind Ambience 2
Background Noise: a Walk in the Botanical Garden 2
Background Noise: Arizona Desert Ambience 2
Background Noise: Arizona Desert Ambience 3
Background Noise: Arizona Desert Ambience
Background Noise: Cottage Kitchen Ambience
Background Noise: Amusement Carnival Park Sounds
Background Noise: Cottage Kitchen Ambience 2
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Background Noise: Warsaw Walkthrough Ambience
Background Noise: Dresden Walkthrough Ambience
Background Noise: Rostock Walkthrough Ambience
Background Noise: Porto Walkthrough Ambience
Background Noise: Serene Autumn Soundscape
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Background Noise: Antalya Walkthrough Ambience
Background Noise: Rain on the Street Sounds
Background Noise: Plastic Bubbles Popping Noise 2
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Background Noise: Rain on the Street Sounds 3
Background Noise: Rain on the Street Sounds 2
Background Noise: Rain and Wind Chimes Ambience
Background Noise: Peaceful Morning Forest Sounds
Background Noise: Peaceful Morning Forest Sounds 2
Background Noise: Jungle Hiking Journey Sounds 3
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Background Noise: Peaceful Lunch in the Alps Ambience
Background Noise: Jungle Hiking Journey Sounds
Background Noise: Pond Frog Chorus Sounds 2
Background Noise: Pond Frog Chorus Sounds
Background Noise: Starry Night Sounds with Crickets and Owls
Background Noise: Rolling Thunder Ambience
Background Noise: Buzzing Beehive Ambience
Background Noise: Rumbling Volcano Ambience
Background Noise: Haggling Market Day Ambience
Background Noise: Buzzing Beehive Ambience 2
Background Noise: Morning Dew Dawn in the Wilderness
Background Noise: Tropical Paradise Jungle Sounds
Background Noise: Footsteps on a Snowy Path Sounds
Background Noise: Footsteps on a Snowy Path Sounds 2
Background Noise: Late Night Coffee Shop Vibes
Background Noise: Late Night Coffee Shop Vibes 3
Background Noise: Sounds of the Countryside
Background Noise: Late Night Coffee Shop Vibes 2
Background Noise: Sounds of the Countryside 2
Background Noise: Highway Car Harmony Ambience
Background Noise: Urban Construction Sounds
Background Noise: Garden Party Ambience 2
Background Noise: Swaying Palms Tropical Breeze
Background Noise: Historic Church Clanging Bells
Background Noise: Urban Construction Sounds 2
Background Noise: Inside of a Factory Ambience
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Background Noise: Heavy Thunderstorm Soundscape
Background Noise: Buttercup Lullaby Field with Birds Chirping
Background Noise: Crowded City Ambience of Tokyo
Background Noise: Buttercup Lullaby Field with Birds Chirping 2
Background Noise: Peaceful Nature Soundscape by the Lake 2
Background Noise: Peaceful Nature Soundscape by the Lake 3
Background Noise: Peaceful Nature Soundscape by the Lake
Background Noise: Crowded City Ambience of Tokyo 2
Background Noise: Open Field Sunset Ambience
Background Noise: the Dawn Chorus Ambience
Background Noise: Playing Ping Pong Ambience
Background Noise: Playing Ping Pong Ambience 2
Background Noise: Crowded City Ambience of Tokyo 3
Background Noise: Coins Shuffling Sounds
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Background Noise: Snowy Mountain Ambience 2
Background Noise: Snowy Mountain Ambience
Background Noise: Grasslands Grazing Animals Sounds
Background Noise: Evening Walk in the Nature Ambience
Background Noise: Kitchen Tap Water Pipe Dripping
Background Noise: Remote Desert Canyon Sounds
Background Noise: Peaceful Morning Bird Symphony
Background Noise: Peaceful Morning Bird Symphony 2
Background Noise: Film Projector White Noise
Background Noise: Food Grinder White Noise
Background Noise: Water Calming Flows Noise
Background Noise: Water Calming Flows Noise 2
Background Noise: Sounds of Heavy Rain 2
Background Noise: Shower Thunderstorm in the Summer Forest
Background Noise: Shower Thunderstorm in the Summer Forest 3
Background Noise: Shower Thunderstorm in the Summer Forest 2
Background Noise: Afternoon Storm Soundscape
Background Noise: Mountain Mossy Fresh Brook Soundscape 2
Background Noise: Mountain Mossy Fresh Brook Soundscape
Background Noise: Ambient Pink Noise Sounds
Background Noise: Scenic Crackling Campfire Sounds
Background Noise: Scenic Crackling Campfire Sounds 2
Background Noise: Mountain Mossy Fresh Brook Soundscape 3
Background Noise: High Heels Walking Sounds
Background Noise: Scenic Golden Wheat Field Sounds
Background Noise: Roaring Mountain River Sounds
Background Noise: Windmill Farm Ambience
Background Noise: Scenic Golden Wheat Field Sounds 2
Background Noise: Roaring Mountain River Sounds 2
Background Noise: Rain by the Window in Tiny Wooden Cottage
Background Noise: Factory Manufacture Ambience
Background Noise: Rain by the Window in Tiny Wooden Cottage 2
Background Noise: Sheep Farm Morning Ambience
Background Noise: Nature Birdsong Soundscape 2
Background Noise: Nature Birdsong Soundscape 3
Background Noise: Nature Birdsong Soundscape
Background Noise: Foggy Forest Fierce Wind Sounds
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Background Noise: Complete Silent Room Soundscape
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Background Noise: Train on Track Soundscape
Background Noise: Underwater Bubbly Soundscape 2
Background Noise: Work Excavator Digging Soundscape
Background Noise: Underwater Bubbly Soundscape
Background Noise: Machine Blender Soundscape
Background Noise: Rabbits Playing Sounds
Background Noise: Humming Air Condition Soundscape
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Background Noise: Steady Wall Clock Ticking Sounds
Background Noise: Growling Distant Powering Generator Sounds
Background Noise: Fish Tank Gentle Humming Noise
Background Noise: Steady Wall Clock Ticking Sounds 2
Background Noise: Football Match Soundscape
Background Noise: Fish Tank Gentle Humming Noise 3
Background Noise: Fish Tank Gentle Humming Noise 2
Background Noise: Growling Distant Powering Generator Sounds 2
Background Noise: Refrigerator Buzzy Sounds
Background Noise: Humming Tumble Dryer Soundscape
Background Noise: Humming Tumble Dryer Soundscape 3
Background Noise: Humming Tumble Dryer Soundscape 2
Background Noise: Meditative Alpha Waves Soundscape
Background Noise: Harbor Market with Waves and Seagulls Sounds
Background Noise: Meditative Alpha Waves Soundscape 3
Background Noise: Meditative Alpha Waves Soundscape 2
Background Noise: Busy Airport Ambient Soundscape
Background Noise: Wind Blowing Through Forest Trees
Background Noise: Forest Trail Scenery 2
Background Noise: Resting Windchime in the Grass Fields
Background Noise: Night Springtime Swamp Sounds
Background Noise: Cooling Mountain Breeze in the Alps 2
Background Noise: Cooling Mountain Breeze in the Alps
Background Noise: Night Springtime Swamp Sounds 2
Background Noise: Resting Rain Showers 2
Background Noise: Tranquil Forest Stream with Birds Singing 2
Background Noise: Tranquil Forest Stream with Birds Singing 3
Background Noise: Tranquil Forest Stream with Birds Singing
Background Noise: Ducks in the Park Sounds
Background Noise: Group of People Talking Sounds 2
Background Noise: Group of People Talking Sounds
Background Noise: Soundscape of the Sea Waves
Background Noise: Soundscape of the Sea Waves 2
Background Noise: Night Breeze with Distant City Sounds 2
Background Noise: Night Breeze with Distant City Sounds
Background Noise: Water Frogs and Grasshopper Chirping Sounds 2
Background Noise: Scenic Sunset by the Ocean Ambience
Background Noise: Scenic Sunset by the Ocean Ambience 2
Background Noise: Blissful Sunny Afternoon in the Countryside
Background Noise: Water Frogs and Grasshopper Chirping Sounds
Background Noise: Robot Vacuum Cleaner Sounds
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Background Noise: Burning Gas Stove Soundscape 2
Background Noise: Coffee Brewing Machine Soundscape
Background Noise: Burning Gas Stove Soundscape
Background Noise: Weekend Shopping Mall Soundscape
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Background Noise: Binaural Green Noise Soundscape 2
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Background Noise: Soundscape of Hawaii Islands
Background Noise: Soundscape of Hawaii Islands 2
Background Noise: Blowout Hair Dryer Sounds
Background Noise: Calming Rainfall Soundscape
Background Noise: Soporific Forest Water Streams
Background Noise: Calming Rainfall Soundscape 2
Background Noise: Peaceful Spring Green Mountain Ambience
Background Noise: Cozy Indoor Gathering Dinner Party Ambience 2
Background Noise: Cozy Indoor Gathering Dinner Party Ambience
Background Noise: Cozy Indoor Gathering Dinner Party Ambience 3
Background Noise: New Years Fireworks Fountain Soundscape 2
Background Noise: Raindrops on a Lake Noise 2
Background Noise: Raindrops on a Lake Noise
Background Noise: New Years Fireworks Fountain Soundscape
Background Noise: Walking in the Streets of Japan
Background Noise: Walking in the Streets of Japan 2
Background Noise: Walking in the Streets of Japan 3
Background Noise: Buzzing Electric Shaver Noise
Background Noise: Busy Road Fast Traffic Soundscape 3
Background Noise: Busy Road Fast Traffic Soundscape 2
Background Noise: Busy Road Fast Traffic Soundscape
Background Noise: Quiet Village Chicken Farm Soundscape 2
Background Noise: Quiet Village Chicken Farm Soundscape
Background Noise: Afternoon City Walk Ambience
Background Noise: Working in the Factory Soundscape
Background Noise: Subway Station Soundscape 2
Background Noise: Subway Station Soundscape
Background Noise: Snow Crunch Winter Stroll 2
Background Noise: Snow Crunch Winter Stroll
Background Noise: Breezy Mountain Pasture Soundscape 2
Background Noise: Breezy Mountain Pasture Soundscape
Background Noise: Train Rail Journey Soundscape 3
Background Noise: Train Rail Journey Soundscape 2
Background Noise: Train Rail Journey Soundscape
Background Noise: Remote Desert Canyon Ambience 3
Background Noise: Remote Desert Canyon Ambience 2
Background Noise: Remote Desert Canyon Ambience
Background Noise: Thunderstorm in the Nature's Forest
Background Noise: Thunderstorm in the Nature's Forest 2
Background Noise: Thunderstorm in the Nature's Forest 3
Background Noise: Soothing Snow Hike Sounds
Background Noise: Soporific Hot Summer Fan Noise 2
Background Noise: Soporific Hot Summer Fan Noise
Background Noise: Peaceful Garden Serene Sounds
Background Noise: Peaceful Garden Serene Sounds 2
Background Noise: Serene Coffee Shop Soundscape 2
Background Noise: Serene Coffee Shop Soundscape
Background Noise: Peaceful Highlands Ambience 2
Background Noise: Peaceful Highlands Ambience
Background Noise: Rush Traffic Vehicles Passing by Sounds 2
Background Noise: Rush Traffic Vehicles Passing by Sounds
Background Noise: Bathroom Extractor Fan Noise
Background Noise: Forest Riverbank Soundscape
Background Noise: Forest Riverbank Soundscape 2
Background Noise: Inside a Hospital Ambience 2
Background Noise: Construction Site Working Ambience
Background Noise: Construction Site Working Ambience 2
Background Noise: Inside a Hospital Ambience
Background Noise: Calming Sounds of the Microwave
Background Noise: Intense Heavy Rain with Loud Thunders Sounds
Background Noise: Calming Sounds of the Microwave 2
Background Noise: Sink Leaking in the Kitchen Sounds
Background Noise: Meditative Birds Singing Nature Ambience
Background Noise: Tranquility Magical Forest Stream Sounds
Background Noise: Tranquility Magical Forest Stream Sounds 2
Background Noise: Intense Heavy Rain with Loud Thunders Sounds 3
Background Noise: Intense Heavy Rain with Loud Thunders Sounds 2
Background Noise: Busy Airport by the Gate Soundscape
Background Noise: Busy Airport by the Gate Soundscape 2
Background Noise: Spring Serenity with Birdsong Ambience Sounds 2
Background Noise: Spring Serenity with Birdsong Ambience Sounds
Background Noise: Freezer Humming White Noise
Background Noise: Airplane Journey White Noise
Background Noise: Golden Hour Walk on the Spanish City Streets 2
Background Noise: Exploring the City in Winter Soundscape
Background Noise: Exploring the City in Winter Soundscape 2
Background Noise: Golden Hour Walk on the Spanish City Streets
Background Noise: Golden Hour Walk on the Spanish City Streets 3
Background Noise: Enchanting Babbling Brook in the Forest Soundscape 2
Background Noise: Enchanting Babbling Brook in the Forest Soundscape
Background Noise: Forest Lullaby River Creek Flowing Ambience
Background Noise: Midtown Summer City Walkthrough
Background Noise: Midtown Summer City Walkthrough 2
Background Noise: Peaceful Soothing Box Fan Soundscape 3
Background Noise: Peaceful Soothing Box Fan Soundscape
Background Noise: Peaceful Soothing Box Fan Soundscape 2
Background Noise: Soporific Sunrise on the Balcony Ambience
Background Noise: Cozy Room Burning Candle Ambience
Background Noise: Cozy Room Burning Candle Ambience 2
Background Noise: Train Ride Railway Soundscape
Background Noise: Soothe Yourself with Air Conditioning White Noise 2
Background Noise: Soothe Yourself with Air Conditioning White Noise
Background Noise: Soporific Car Park Ambience Soundscape 2
Background Noise: Soporific Car Park Ambience Soundscape