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 0xe3a794a2635ab106b1fd5761407fd8f0a3f23c582e79e6209bae6654a2cd66d6. 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/9c721606-01fc-4413-8be6-8494c5cfba85.json and https://artists.proofprofile.net/proofs/artist/9c721606-01fc-4413-8be6-8494c5cfba85.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 0x9d54509d5fd72b052cab740a816822434e14949446a4e69402e9ece84ffd9d21. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BGA471907064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d967a21503de4d1e26e6ec332d5b4553c6747b1f143f0290c6832e63fa1a41. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BGA471912227.
Clarinet Solo - Ambiance for After Dinner Coffee
Music for Friday Night Dinner - Scintillating Trumpet Solo
Music for Friday Night Dinner - Trumpet Solo
Good Morning Music Classic (Instrumentals)
Good Morning Music Classical (Instrumentals)
Good Morning Music Soft Jazz (Instrumentals)
Monday Morning Jazz Relaxing Jazz To Start The Week
Christmas Jazz Music Coffee Shop Ambience
Beautiful Relaxing Jazz Piano Music For Stress Relief
Backdrop for Staying Fresh - Trumpet and Alto Sax
Music for Mental Exercises - Vibrant Trumpet and Alto Sax
Urbane Jazz Trio - Ambiance for Tuesday Dinner
Cheerful Background Music for Afternoon Tea Time
Music for Tuesday Dinner (Trumpet and Alto Sax)
Incredible Music for Work Mode - Trumpet, Alto Sax and Tenor Sax
Retro Background Music for New Workspaces
Background Music for Relaxing with Coffee
Music for Cool Spring Days - Vibraphone and Tenor Saxophone
Music for Spring Creativity - Vibraphone and Tenor Saxophone
Breathtaking Background Music for Cool Spring Days
Superlative Ambiance for Relaxing with Coffee
Elegant Quartet Jazz - Bgm for April Inspirations
(Vibraphone and Tenor Saxophone Solos) Music for April Inspirations
Music for Evening Coffee (Vibraphone and Tenor Saxophone)
Music for Unique Perspectives (Vibraphone and Tenor Saxophone)
Backdrop for Ultra Fresh Coffee - Vibraphone and Tenor Saxophone
Quartet Jazz - Background Music for Coffee and Study Moods
Wonderful Background for Classic Concentration
Opulent Ambiance for Classic Concentration
Sophisticated Bgm for Morning Road Trips
Music for Positive Nature - Scintillating Jazz Guitar Solo
Deluxe Trumpet Bossa - Ambiance for Mellow May
Magnificent Trumpet Bossa - Ambiance for Morning Road Trips
Saxophone Bossa - Background Music for Yesterdays Dreams
Deluxe Quartet Jazz - Ambiance for Energetic Feelings
Backdrop for May Moods - Trumpet, Electric Piano, Alto Sax and Soprano Sax
Trumpet Smooth Jazz - Background for May Moments
Music for May Travels - Trumpet, Electric Piano, Alto Sax and Soprano Sax
Fantastic Music for Low Key Mornings - Soprano Sax Solo
Carefree Quartet Jazz - Ambiance for Comforting Cacophony
Tenor Sax Solo - Music for Lazy Thursday
Quartet Jazz - Background Music for Lazy Thursday
(Soprano Sax Solo) Music for Stylish June
Music for Mellow June Mornings - Cultured Jazz Guitar Solo
Music for Crazy Night - Soprano Sax Solo
Subtle Music for Crazy Night - Soprano Sax Solo
Joyful Quartet Jazz - Background for Romantic Notes
Swanky Quartet Jazz - Ambiance for Fun Traveling
Smooth Music for Wonderful Overtones - Jazz Quintet
Laid-back Jazz Violin - Background for Peak Summer
Music for Laid Back Overtones - Swanky Jazz Quintet
Jazz Trio - Background for Island Vacation
Subdued Backdrop for Classic Coffee Drinks
Unique Trumpet Bossa - Ambiance for Self Care and Coffee
Guitar Bossa Nova - Music for Coffee and Mental Health
(Jazz Organ and Guitar Solo) Music for AM Throwbacks
Wondrous Background Music for Deluxe Summer Time
Quartet Jazz - Background for Living in August
Music for Fall Seasons - Lively Jazz Organ and Guitar
Spectacular Ambiance for Private Daydreams
Music for Colorful Gambles (Jazz Quintet)
Background Music for Stress Fee Realities
Bossa Nova Guitar (Music for Private Daydreams)
High-class Background for Quiet Loungers
(Soprano Sax Solo) Music for Essential Thoughts
Brilliant Music for Essential Thoughts - Jazz Guitar Solo
Quartet Jazz - Background for Quiet Loungers
Music for Autumns Vibrations - Jazz Quintet
Music for Charming Holiday (Latin Music)
Music for Intellectual Steps - Piano Duo
Music for Rejuvenating October (Jazz Quintet)
Music for Jazzy Weekenders - Acoustic Guitars
Music for Infinite Days - Bossa Guitar Trio
Music for Infinite Days - Happy Bossa Guitar Trio
Music for Respectful Flashbacks - Jazz Organ and Guitar
Acoustic and Electric Piano Jazz Duo - Background Music for Lounging Luxury
Serene Music for Infinite Days - Bossa Guitar Trio
Music for Good Horizons (Jazz Organ and Guitar)
Music for Lounge Mornings (Jazz Organ and Guitar)
Music for Quiet Coffee Time (Jazz Organ and Guitar)
Dream-Like Trio Jazz - Bgm for Quiet Coffee Time
(Jazz Organ and Guitar Solo) Music for Quiet Coffee Time
Simplistic Music for Smooth Timbers - Piano Bossa Nova Duo
Backdrop for Working and Chillout - Superlative Latin Piano Jazz
Music for Mythical Energies - Phenomenal Piano Bossa Nova Duo
Fabulous Easy Listening Piano - Ambiance for Calm Coffee and Work
Music for Mystical Monday - Bossa Guitar Trio with Jazz Organ
Easy Listening Piano - Background for New Workflows
Bossa Guitar Trio - Background for Acoustic Messages
Piano Duo Jazz - Background Music for Infinite Victory
Piano Jazz Duo - Background for Brave Afternoons
Backdrop for Accurate Work - Latin Piano Jazz
Easy Listening Piano Music - Background Music for Important Goals
Outstanding Backdrop for Infinite Victory
Quartet Jazz - Ambiance for Natural Focus
Fiery Background Music for Winter Balancing
Wicked Latin Guitar - Bgm for Every Holiday
Blissful Echoes: An Ambient Serenade for Pure Relaxation
Transcendental Trance: Ambient Music for Sustained Concentration
Tranquil Cat Vibes: Chill Music for Calm and Serenity
Concentration Serenades: Chill Music for Enhanced Focus
Touch of Tranquility: Meditation Music for Massage
Gentle Moments: Music for Relaxation & Meditation Music
Woof and Whistle Sonata: Music For Fun Times
Music For Effective Studying: Academic Aria
Music For Cognitive Clarity: Mental Mastery
Music For Exam Preparation: Knowledge Keys
Music For Dog Relaxation: Paws and Barks
Chill Music: Beneath the Ocean's Embrace
Flowing Asanas: Yoga by the Stream Nocturne
Fire's Meditation Music Moments: Reflective Radiance
Waterfall Sounds: Relaxation's Rippling Respite
Baby's Firelight: Gentle Lullabies Melody
Relaxation Ocean: Peaceful Shoreline Ambience
Chill Music for Stress Release: Relaxation Tones
Music for Evening Reflections: Calm Harmonic Layers
Chill Music for Weekend Mornings: Lazy Day Harmonies
Morning Music: Melodies to Start Your Day
Morning Jazz Lounge: Smooth Sounds for Relaxation
Cool Breeze Jazz: Relaxing Café and Cocktail Sounds
Music for Sleep: Gentle Dreamscape Melodies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8e2d21f765e3300f569616f9b37b40d3787d1fda4b09ac9ffe9ff7297afb26. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZWDD2400774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd39d47805b8002537df8ad2a98614c567a73559aac2efb408e752a31a4236ca. 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/QZWDD2400782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f46923e1bf4c8e98d0a03cef7fc51eb341cf6fb68dd5ca95c7030cf254ec64c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZWDD2400806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1898d501c49023ca6f3be1558cb1be9da63d0fc761db7eea7729ac1cc9694b. 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/QZWDD2400814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18d34457e16f5b7b3b28b958ebcbce7973fc3a333931dd7a0372834b472268d. 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/QZWDD2400830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95f148f4c72b441940093abea7314991b6a2f7292be7c364fe7063cd54656c1. 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/QZWDD2400837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f6edf20ba24c1b499fe9f9ce3a69bdf4f711aad0c085f051922e834383121c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZWDD2400767.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aca1f3d8d4e7ca830fddd0c9420b62c19024a820614f5e06ae43a4abaa3b920. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZWDD2400788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2d3254aa1e488f617fbb41460afb19261dc81c531b4ba3f3af227398f03373. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZWDD2400795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27250d23d3f2d15d991a211ca201622503ebb6327b1db051d714edc39de42886. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZWDD2400820.