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 0xad4027ff1c5cce1d1a79ea3d975ae56569aad37e676284d75ebca54cc3b71bee. 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/742c768e-756e-4d69-abdb-8437c715326a.json and https://artists.proofprofile.net/proofs/artist/742c768e-756e-4d69-abdb-8437c715326a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5dd8032c671ac01b7fb6620d990ebe03160dfeb20f812e17f10c2c96ca913e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME1392383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91a2498a717dd7147c71c2b41c64bae369a49595f21a82efd86592408d0e1c8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME1392384.
Jazz Encounters: The Finest Jazz You Might Have Never Heard, Vol. 2
Jazz Piano Sophistication by Stefano Ordini (The Jazz Encounters Collection)
Jazz Guitar Elegance by Fabrizio Savino (The Jazz Encounters Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21a633d496e9fafe5607071d29d203103d32135cd74d61b5437e5223282f92d. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPS81527416.
Sexy & Smooth Jazz – City on Night, Smooth Jazz, Mood Music, Ultimate Instrumental
Instrumental Jazz – Streaming Jazz, Most Relaxing Sounds, Jazz Mood Music
Smooth Instrumental – Jazz Music Collection, Ultimate Relaxation, Easy Listening
Sexy Jazz Instrumental – Sensual Jazz, Sexy Jazz Lounge, Relax, Pure Instrumental Music
New Orlean's City Jazz Sky: Instrumental Smooth Jazz Music Compilation 2019 with Vintage Sounds & Melodies of Piano, Guitar & Many More
Jazz Love Sessions: 2019 Smooth Jazz Music for Couples, Perfect Background for Spending Evening Together, Romantic Dinner Songs, Erotic Relax in Bath and in Bed for Two
Relaxing Side of Smooth Jazz: 2019 Fresh Instrumentals of Jazz Music, Play This Songs when You Need to Relax, Rest, Calm Down, Soothing Time at Home with Love
Coffee Last Weekend: 15 Instrumental Jazz Melodies Background for Cafe, Relaxing Time, Positive Vibes, Cafe Jazz Music, Mood Jazz Songs
Pleasant Jazz Music: Catchy Melodies and Gentle Sounds in the 15 Best Instrumental Jazz Arrangements
Energetic Jazz Mornings: Positive Attitude, Instrumental Jazz Melodies, Relaxation, Good Feelings & Emotions, Lounge Music
Jazz Night Therapy – Rest, Jazz Music, Relaxing Moments, Calm Down, Good Mood
Paris Love Story - Fresh Romantic Jazz, Date in the Park, Summer Romance, One and Only
Jazz Background for Business Meeting - Light Instrumental Music Thanks to Which Transactions with Contractors Will be Successful
Smooth and Calm Touch of Jazz – Ambient Jazz Session, Relaxing Background Music, Perfect Jazz Mood
Classic Trio Jazz - Bgm for Chilled Days
Music for Cool Cafes - Sunny Trumpet Jazz
Music for Working from Cafe (Trumpet Jazz)
Sentimental Autumn Jazz and Rainy Day in New York: Study Cafe and Background Music for Rest and Focus
Music for Seduction (Romantic Jazz Moments)
Autumn Mood – Gentle Music Perfect for Autumn Evenings with Warm Coffee and Book, Lazy and Cold Days, Deep Relaxation
Retro Background Music for Working at the Office
Majestic Jazz Trio - Background for Co Working Spaces
Backdrop for Focus - Simplistic Trumpet and Alto Sax
Classy Jazz for International Men’s Day: Saxophone Music for Romantic Dinner
Friday Night Subtle Serenades: Free Time, Chill Moments, Lonely Days
Retro Bossa Saxophone - Background for Pumpkin Spice Coffee
Bossa Saxophone - Ambiance for Holiday Recharging
Bossa Saxophone - Background for Egg Nog Coffees
Vintage Music for Egg Nog Coffees - Bossanova
Music for Oat Milk Flat Whites - Bossanova
Backdrop for Horchata Lattes - Bossanova
Alluring Backdrop for Single Origin Espresso
Music for Morning Inspiration - Inspired Big Band Ballad with Guitar
Smooth Big Band Ballad with Vibraphone - Ambiance for Morning Inspiration
Sprightly Piano Jazz - Background for Fun Days
Sublime Big Band with Tenor Sax - Bgm for Daily Routines
Retro Piano Jazz - Ambiance for Funny Moments
Backdrop for Trigerring Inspiration - No Drums Jazz
Funky Trumpet Smooth Jazz - Background for Rainy April
Fantastic Music for Working Days - Trumpet and Alto Sax
Music for Deep Working - Trumpet and Alto Sax
Music for Deep Working - Sunny Trumpet and Alto Sax
Smooth Jazz - Background Music for Sweet Spring
Music for Work and Study - Trumpet and Alto Sax
Music for Deep Working - Classic Trumpet and Alto Sax
(Smooth Jazz Sax) Music for Boutique Coffee Roasters
Jazz Trio - Background for Summer Holiday
Music for Hotel Restaurants - Trumpet and Alto Sax
Pulsating Background Music for Summer Holiday
Music for LA Coffee Clubs - Spirited Trumpet, Electric Piano, Alto Sax and Soprano Sax
Relaxed Music for Workcation - Trumpet and Alto Sax
Music for NYC Cafe Bars - Trumpet, Electric Piano, Alto Sax and Soprano Sax
Carefree Background for Hotel Restaurants
Hypnotic Ambiance for Early Summer Changes
Quartet Jazz - Background for Lazy Thursday
Trumpet Smooth Jazz - Background for May Moments
Tenor Sax Solo (Music for Mellowing Out)
Smooth Jazz Sax - Music for Inspiring May
Backdrop for Summer Loves - Happy Jazz Organ and Guitar
Backdrop for June Gloom - Soprano Sax Solo
Contemporary Background for Summer Exploring
(Tenor Sax Solo) Music for June Evenings
Easy Quartet Jazz - Background for Blue Heaven
Energetic Quartet Jazz - Ambiance for Bohemia Vibes
Backdrop for Funky Jazz - Jazz Guitar Solo
Music for Sixth Senses - Deluxe Jazz Guitar Solo
Sumptuous Background for Relaxing Overtones
Guitar Bossa Nova (Music for Relaxing Overtones)
(Guitar Bossa Nova) Music for Deluxe Ballads
Scintillating Backdrop for Soda and Java
Happening Latin Trumpet - Ambiance for Espresso Tonics
Sprightly Ambiance for Energizing Coffee Beverages
Quartet Jazz - Background Music for Happy Fridays
Brilliant Backdrop for Classic Daydreaming
Backdrop for Summer Delight - Soprano Sax Solo
Music for Sunday Morning Relaxings - Warm Soprano Sax Solo
Quintet Jazz (Music for Classic Daydreaming)
Quartet Jazz - Background for Sunday Morning Relaxings
Trumpet Bossa - Background for Jazzy Recliners
Excellent Trumpet Bossa - Ambiance for Staying Cool
Music for Refreshing Iced Coffee Drinks - Marvellous Trumpet, Soprano Sax, Tenor Sax and Guitar
Music for Premium Summer (Soprano Sax Solo)
Trio Jazz - Background Music for Cooling Summer
Music for Last Minute Holidays - Jazz Organ and Guitar
Jazz Organ and Guitar Solo (Music for Last Minute Holidays)
(Jazz Organ and Guitar Solo) Music for Fall Vacation
Music for Seasonal Thought - Jazz Organ and Guitar
Background Music for Casual Summer Moment
Grand Background Music for Awakened Starlights
(Soprano Sax Solo) Music for Awakened Starlights
Uplifting Quartet Jazz - Ambiance for Essential Thoughts
Phenomenal Background Music for Quiet Loungers
Stellar Background Music for At The Hotel
Marvellous Background for Pathway Serenity
Romantic Quartet Jazz - Background for Essential Thoughts
Latin Trumpet - Background for Autumn Collections
Carefree Organic Guitar Music - Ambiance for Night Spirits
Music for October Mindfulness - Jazz Quintet
Organic Guitar Music - Ambiance for Jazzy Weekenders
Music for Autumns Vibrations (Jazz Quintet)
Backdrop for Lounge Moods - Simplistic Acoustic Guitars
(Piano Bossanova Duo) Music for Creative Flashback
Music for Inspired Fall (Soprano Sax Solo)
Piano Bossa Duo - Background for Warm Memory
Cheerful Trumpet Bossa - Ambiance for Stress Managing
Quartet Jazz - Background Music for Powerful Seasons
Bossa Nova Piano Duo - Bgm for Warm Memory
Sensational Background for Courageous Friday
Music for Chill Contemplation (Trumpet, Soprano Sax, Tenor Sax and Guitar)
Music for Chill Contemplation - Trumpet, Soprano Sax, Tenor Sax and Guitar
Spacious Background for Sounds of Success
Jazz Violin - Background for Inspiring Notes
Sultry Piano Bossa Duo - Ambiance for Smooth Timbers
Piano Bossa Duo - Background for Higher Illusions
Instrumental Solo - Piano And Saxophone Improvisational Music
Music for Working and Chillout (Latin Piano Jazz)
Tasteful Easy Listening Piano Music - Bgm for Working and Chillout
Organic Guitar Music - Background for Sunshine Memory
Backdrop for Welcoming Power - Tranquil Acoustic Guitars
Acoustic Guitar Quartet - Music for Delightful Essentials
Cultured Music for Nocturnal Nights - Jazz Quintet
Music for November Nocturnal - Charming Jazz Quintet
Quartet Jazz - Background for Handmade Blues
Energetic Quartet Jazz - Background for Alternative Oceans
Music for Vague Details (Jazz Organ and Guitar)
Music for Soft Mornings (Jazz Organ and Guitar)
Music for Misty Sunday - Exciting Piano Duo
(Jazz Piano Duo) Music for Calming Lounges
Music for Calming Lounges - Relaxed Piano Duo
Piano Jazz Duo - Ambiance for Coffee Escapes
Music for Moonlight Worlds - Relaxing Jazz Quintet
Lovely Evening Jazz: Fancy Moments with Cats
Jazz Post-Work Ritual: Relieve Job Stress After Work
Coffee Lounge Melodies: Tranquil Jazz for Relaxation
Upbeat Autumn Jazz: Cosy Music for Mellow Time
Romantic Morning: Gentle Jazz Music for Breakfast in Bed
Jazz for Sad Moments: Relaxing Jazz Moments
Jazz Piano Study Infusion: Calming Learning Soundscapes
Summer, Autumn, Winter Jazz: Relax throughout the Year
Workday Jazz: Smooth Tunes for Concentration
Serenade Of Steps: Harmonic Serenity for Cold Evenings, Cozy Winter Walks
Balcony Escape: Jazz Evening Under the Stars
Vintage Cafe Vibes: Bossa Nova and Coffee Moments
Soft Jazz Nights: Music for Evening Calm
Smooth Jazz Concentration Focus Music For Work & Study
Relaxing Jazz Music For Studying & Working
Upbeat Smooth Jazz Work Study Music For Concentration & Focus
Jazz Lounge Music For Work Study Concentration Focus
Jazz Lo Fi Chill Ambient BGM For Studying & Working
Upbeat Jazz BGM Study Work Concentration Focus Music
Smooth Jazz Chillout Lounge For Studying & Working
Focus Jazz Lounge for Studying & Productivity
Upbeat Smooth Jazz Work Study Music For Concentration & Focus 2025
Chill Modern Smooth Jazz Instrumentals For Studying & Relaxation
Relaxing Smooth Jazz Lounge for Studying & Working
Chillout With Smooth Jazz Lounge Music 2025 Study Focus Concentration Boost
Upbeat Modern Jazz Instrumentals For Studying & Working
Jazz Instrumental Music 2025 Groovy Funky Smooth Jazz
Chill Work Music Jazz Lounge Cafe 2025 Jazzy Band Studying Working Sleeping (Instrumental)
Chillout Smooth Jazz Lounge Music 2025 (Instrumental)
Smooth Jazz Band Ensamble Concentration Focus Music For Work & Study (Instrumental)
Relaxing Smooth Jazz Band Music For Studying Working Sleeping (Instrumental)
Uplifting Chill Jazz Band Ensamble For Study Work Sleep Game (Instrumental)
Focus Concentration Jazz Band Music For Study Work (Instrumental)
Smooth Jazz Signals from the Attic (Instrumental)
Study Table Jazz Serenade (Instrumental)
Sunday Morning Jazz Routine (Instrumental)
After Hours Lofi Jazz Beats (Instrumental)
Evening Streets Jazz Vibes (Instrumental)
Smooth Jazz Lounge Sessions (Instrumental)
Sunset Sax and Jazz Rhythms (Instrumental)
Golden Hour Jazz Experience (Instrumental)
City Lights Jazz Ensemble (Instrumental)
Energetic Jazz Lo Fi Hip Hop 2025 Beats To Work To (Instrumental)
I Game Harder When Lofi Music Is On (Instrumental)
I Stream Better With Lofi Hip Hop Chill Music On (Instrumental)
Lofi HipHop Makes Me Feel Too Chill (Instrumental)
Chill Vibes Smooth Jazz Lounge (Instrumental)
Smooth Jazz Evening Chillout Lounge (Instrumental)
Soothing Library Jazz: Music for Reading, Writing and Studying
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2313c44c61d4b4be20d6347b8e7e46aa69edf1a7e2b7421ae9c0702894df10f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKR4Q2113143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf43b20b62668135b54a4cc8bb7cc69d628f35c43c8e9d525d1fe35e889e700. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKR4Q2113145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80d4357949b08e8cdae17f7b9257233ea2d0a4369a5097b83d5e35f0dad4b8e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKR4Q2113149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a08b8204648a25a8fa515eb998522a8b2ef24c2e31bd6f1148f0dd6aa5fa95. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKR4Q2113151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d682f504650b8e1099b00e91e9edea2b80f654dade7813da4df177f3ec055aa. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKR4Q2113152.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch