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 0xfaccdf23dd32ba4875f83402a7e3305fe4906429a93732675c3d405e61e2cb63. 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/7606ddf2-0f53-4c9a-b2c1-5ab3609ac073.json and https://artists.proofprofile.net/proofs/artist/7606ddf2-0f53-4c9a-b2c1-5ab3609ac073.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 0x1b060e91b6502255a4f6d3f2348d5278578bf9c54de8f55a3e07820295cdd4e9. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FR59R1997466.
Relaxed Working Rhythms - Personal Office
Morning Breeze for a Happy Day - Rays of a New Day
Morning Breeze for a Happy Day - Waking up Early
Chilled Time at the Lounge:素敵なバータイム: A Time for Quiet
Cafe Bossa BGM: ほっこりやさしくなれるカフェ時間
Chilled Time at the Lounge:素敵なバータイム - A Quiet Drink
Relaxing Night Lounge - Reasonable Chill
Chilled Time at the Lounge - Smooth Style
Morning Breeze for a Happy Day - The Way I Start My Day
Relaxing Night Lounge - Never Been Better
Chilled Time at the Lounge - Luxury Touch
Morning Breeze for a Happy Day - Weekend Moods
Relaxed Working Rhythms - Work the Vibes
Relaxed Working Rhythms - The Cressendo Will Come
Relaxing Night Lounge - Smooth Like Satchmo
Chilled Time at the Lounge - Slow and Endless
Cafe Bossa BGM:ゆったりおうち時間 - A Book and Mug
Cafe Bossa BGM-ゆったりおうち時間- Grooving Blends
Cafe Bossa BGM:ゆったりおうち時間 - We Like it Sweet
Cafe Bossa BGM:ゆったりおうち時間 - Cool Dreaming
Relaxing Night Lounge - Hardbop in the Home
Reading Time BGM - Window to Another World
Chilled Time at the Lounge:素敵なバータイム - Slow and Endless
Chilled Time at the Lounge - Love of My Life
Cafe Bossa BGM:ゆったりおうち時間 - Aromatic Vibes
Cafe Bossa BGM - コーヒーと音楽で心地いいチル・ブレイク
Relaxed Working Rhythms - Harmony in the Workplace
Chilled Time at the Lounge - An Ode to Myself
Morning Breeze for a Happy Day - Heat of the Cafe
Hello to Hygge - Symphony for the Sentimental
Chilled Time at the Lounge - Fantasy in Old Times
Morning Breeze for a Happy Day - Joy in the Morning
心落ち着くリモートワークスタイル - The Cressendo Will Come
Relaxed Working Rhythms - Music Motivation
Morning Breeze for a Happy Day - My Cozy Morning
Relaxed Working Rhythms - Make My Way in Life
Relaxing Night Lounge - Relaxing for You
Reading Time BGM - Corridor to Your Heart
心落ち着くリモートワークスタイル - Harmony in the Workplace
Relaxed Working Rhythms - A Great Success
Reading Time BGM - Reading My Favorite Book
Chilled Time at the Lounge - Tequila Time
Chilled Time at the Lounge:素敵なバータイム - Order Off Menu
Relaxing Night Lounge - Diamonds in the Sky
Chilled Time at the Lounge - Chilled Sounds
Chilled Time at the Lounge:素敵なバータイム - Tequila Time
Relaxed Working Rhythms - Break Time Brew Time
心落ち着くリモートワークスタイル - Focus Fusion
Chilled Time at the Lounge - My Favorite Things
Chilled Time at the Lounge:素敵なバータイム - Chilled Sounds
Relaxed Working Rhythms - So Easy Does it
Chilled Time at the Lounge - Mocha with Music
Chilled Time at the Lounge:素敵なバータイム - My Favorite Things
Cafe Bossa BGM:ゆったりおうち時間 - Beans and Beats
Chilled Time at the Lounge:素敵なバータイム - Half a Glass
Relaxed Working Rhythms - A Natural Method
Relaxing Night Lounge - The Call of the Night
Chilled Time at the Lounge - Half a Glass
Morning Breeze for a Happy Day - Sunrise Drive
Cafe Bossa BGM:ゆったりおうち時間 - Sounds of the City
Chilled Time at the Lounge:素敵なバータイム - Coffee in the Morning
Relaxed Working Rhythms - Always Learning
Relaxing Night Lounge - Sounds of the Sea
ゆったり夜のチルラウンジBGM - A More Beautiful World
Chilled Time at the Lounge:素敵なバータイム - A Night in the Country
Chilled Time at the Lounge - Coffee in the Morning
Relaxed Working Rhythms - Sparkling Vibes
Chilled Time at the Lounge:素敵なバータイム - A Toast to My Love
Relaxed Working Rhythms - Focused on Success
BGM for Reading Time - The Author's Mind
Chilled Time at the Lounge:素敵なバータイム - Resonance of a Soul
Cafe Bossa BGM:ゆったりおうち時間 - A Coffee Shop in the City
Cafe Bossa BGM:ゆったりおうち時間 - Swing in the Streets
Relaxing Night Lounge - Lullaby for the Soul
BGM for Reading Time - A Book and a Cigarette
Cafe Bossa BGM - A Coffee Shop in the City
心落ち着くリモートワークスタイル - Set the Tone
Relaxed Working Rhythms - Study in the Rain
Chilled Time at the Lounge:素敵なバータイム - Chill and Groove
Chilled Time at the Lounge - Chill and Groove
Morning Breeze for a Happy Day - The Morning Stroll
心落ち着くリモートワークスタイル - I'm on a Roll
Relaxed Working Rhythms - The Ultimate Workout
Relaxing Night Lounge - Night-Time Stories
Relaxed Working Rhythms - I'll Study Anywhere
Relaxing Night Lounge - Unfolding Stories
心落ち着くリモートワークスタイル - New Beginning
Chilled Time at the Lounge:素敵なバータイム - A Night in Paris
Chilled Time at the Lounge - A Night in Paris
リゾート気分で週末ゆったりリラックスBGM
Relaxed Working Rhythms - The Art of Studying
Chilled Time at the Lounge:素敵なバータイム - Shine of the Moon
Cafe Bossa BGM:ゆったりおうち時間 - Bite-Sized Treats
BGM for Reading Time - Paperback's Sweetness
Chilled Time at the Lounge - Shine of the Moon
Morning Breeze for a Happy Day - The Day of the Sun
Relaxed Working Rhythms - The Key to Success
Chilled Time at the Lounge:素敵なバータイム - Dance with Me
Cafe Bossa BGM:ゆったりおうち時間 - Tea Time for Two
Relaxed Working Rhythms - One Note at a Time
心落ち着くリモートワークスタイル - The Theme of My Laptop
BGM for Reading Time - A Book for the Road
Chilled Time at the Lounge - Dance with Me
Chilled Time at the Lounge:素敵なバータイム - A Taste of Night
Cafe Bossa BGM:ゆったりおうち時間 - Coffee and Breakfast
Relaxed Working Rhythms - The Theme of My Laptop
BGM for Reading Time - The Book on the Shelf
Chilled Time at the Lounge - A Taste of Night
Morning Breeze for a Happy Day - On the Avenue
Cafe Bossa BGM:ゆったりおうち時間 - Mellow Sunday
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf1fc3ed318e4274438d172f582699bfcb1c8329cc74f94fec14987ca7ba8bc. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTRX2229662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bcbcdb61af7b57e8d623eb9a0e3e21c45d075a84f53f264ec01994665eb21e. 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/QZTRX2229663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0d3f4d822b1a6e370852593d84ef43d9e38275ef3f94affbd258eebd97e8b0. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZTRX2229664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc026440012efc59fd0eb970846c73b1cebe5d3132f59654f3812bfb785bd93c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTRX2229665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7d628c7445c889d6a7285aed6017c5cd2de4fd1800359a742b84fba5b209f7. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T05:01:22Z), 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/QZTRX2229666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea9bb564410d76319c572e7d01ea2dfc399d87e62ce77d3ae0b89f3b98e0287. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:54:43Z), 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/QZTRX2229667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea30b8cff1e0c470745cabeccbe2459c0479a3280b6dc76979919d7ffc56a979. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZTRX2229668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21b404a165184639ede1bdd7aae24bb515ebf69f1fe8207b5c0852b17901151. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZTRX2229671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40e4741157ad4a0ed4f5becd96ab97a1bfc1a98da46693b4e050508e82ed684. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZTRX2229675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5aff5d404d715175cf5d74ff0a31f8406453419f905a226abb57e5679184a1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTRX2229679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e820a11795be93879e7faf4a761ad4067da0bec61ed6d3ff0450f4a54abd06d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTRX2229681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3087877678efe0c9d7ca30965bf6d429ebf05fa39cce228972559c590c07190b. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QZTRX2229684.
Relaxed Working Rhythms - The End of the Week
BGM for Reading Time - Chill Out Reading Moods
Chilled Time at the Lounge:素敵なバータイム - The World is Mine
Cafe Bossa BGM:ゆったりおうち時間 - Coffee Lounge
Relaxed Working Rhythms - Themes of the Future
ゆったり夜のチルラウンジBGM - Lullabies for the Soul
Chilled Time at the Lounge:素敵なバータイム - A Drink to the Past
Cafe Bossa BGM:ゆったりおうち時間 - The Sounds of the Morning
Relaxing Night Lounge - Lullabies for the Soul
Chilled Time at the Lounge:素敵なバータイム - Moody Blues
Chilled Time at the Lounge - A Drink to the Past
Cafe Bossa BGM - The Sounds of the Morning
Cafe Bossa BGM:ゆったりおうち時間 - Cool and Chilled
BGM for Reading Time - The Author's Soul
Chilled Time at the Lounge - Moody Blues
Chilled Time at the Lounge:素敵なバータイム - Nighttime Vibes
Morning Breeze for a Happy Day - Morning Sun
Cafe Bossa BGM:ゆったりおうち時間 - Biscotti and Coffee
BGM for Reading Time - The Best Place to Read
Chilled Time at the Lounge - Nighttime Vibes
Chilled Time at the Lounge:素敵なバータイム - Lazy Moonlight
BGM for Reading Time - Book and a Melody
Morning Breeze for a Happy Day - Sunny Sunday Morning
Relaxed Working Rhythms - The Soundtrack of My Life
Relaxing Night Lounge - Count the Sparkling Stars
BGM for Reading Time - A Novel in a Notebook
Chilled Time at the Lounge - The Way I Feel
Morning Breeze for a Happy Day - Sunday Music
Cafe Bossa BGM - Comfort FoodCafe Bossa BGM - A Cup of Peace
Chilled Time at the Lounge:素敵なバータイム - Cocktail Lounge
Chilled Time at the Lounge:素敵なバータイム - A Taste of Romance
Chilled Time at the Lounge:素敵なバータイム - A Walk in the Park
Chilled Time at the Lounge:素敵なバータイム - Blue Sunset
心落ち着くリモートワークスタイル - My Study Plan
Chilled Time at the Lounge:素敵なバータイム - Night's Melody
Relaxing Night Lounge - The Night is Calling
Chilled Time at the Lounge:素敵なバータイム - Mystical Serenity
Morning Breeze for a Happy Day - Sunday Morning Ballad
Relaxed Working Rhythms - Study on a Theme
Relaxing Night Lounge - The End of the Day
Morning Breeze for a Happy Day - Early Morning Street
Cafe Bossa BGM:ゆったりおうち時間 - Coffee & Tunes
心落ち着くリモートワークスタイル - The Beats of my Heart
Relaxing Night Lounge - Music for the Nighttime
Cafe Bossa BGM:ゆったりおうち時間 - Comforting Cappuccino
心落ち着くリモートワークスタイル - Creative Work
BGM for Reading Time - The Story of a Book
Morning Breeze for a Happy Day - Sunny Morning Blues
Chilled Time at the Lounge - Elegant Sounds
Cafe Bossa BGM:ゆったりおうち時間 - Afternoon Tea
Chilled Time at the Lounge:素敵なバータイム - One Day
心落ち着くリモートワークスタイル - Smooth Vibes
ゆったり夜のチルラウンジBGM - The Effects of the Moon
Chilled Time at the Lounge:素敵なバータイム - Best of Times
Cafe Bossa BGM:ゆったりおうち時間 - Coffee and Moods
Chilled Time at the Lounge:素敵なバータイム - Lounge in the City
Cafe Bossa BGM:ゆったりおうち時間 - A Mellow Afternoon
Chilled Time at the Lounge:素敵なバータイム - Black & White
Relaxed Working Rhythms - Study with a Friend
BGM for Reading Time - A Melody of Words
Chilled Time at the Lounge - Black & White
Morning Breeze for a Happy Day - Early Morning Trip
Relaxed Working Rhythms - Work Comes First
Cafe Bossa BGM : ゆったりおうち時間 - Creamy Vibes
Relaxed Working Rhythms - Study of the Moment
Cafe Bossa BGM : ゆったりおうち時間 - Coffee Break
Relaxed Working Rhythms - Music For Study
春色メロディーで彩るやすらぎのワークスペース
Cafe Bossa BGM : ゆったりおうち時間 Chillin' at the Cafe
Chilled Time at the Lounge : 素敵なバータイム - A Moment of Love
Relaxed Working Rhythms - The Study of Study
Chilled Time at the Lounge - a Moment of Love
Morning Breeze for a Happy Day - The Morning Mail
落ち着いた雰囲気のおしゃれなジャズ
Let'S Enjoy Morning Time With Comfortable Music
あたたかいカフェの空間を満たすジャズ
BGM to Spend a Moment Interrupting The Hustle and Bustle
贅沢な時間を過ごすリラックスジャズ
Cafe Bossa BGM : ゆったりおうち時間 - Breakfast on the Street
雨の日の読書向けスムースジャズ
Cafe Bossa BGM - Breakfast on the Street
Relaxed Working Rhythms - Coffee Shop Studying
Reading Cafe Time on a Leisurely Rainy Day
Chilled Time at the Lounge : 素敵なバータイム - A Night in Paris
爽やかな朝のほっこりBGM - Sunday Morning Bluegrass
Cafe Bossa BGM : ゆったりおうち時間 - Morning Jitters
心落ち着くリモートワークスタイル - The Theme of My Study
Cafe Bossa BGM : ゆったりおうち時間 - A Cup of Joy
Relaxed Working Rhythms - The Theme of My Study
Chilled Time at the Lounge : 素敵なバータイム - Tranquil Toughness
Peaceful Lunchtime on a Sporadic Rainy Afternoon
Chilled Time at the Lounge - Tranquil Toughness
Relaxed Working Rhythms - Studying at Home
ゆったり夜のチルラウンジBGM - The Calmness of the Night
Chilled Time at the Lounge : 素敵なバータイム - Warm and Sunny
Morning Breeze for a Happy Day - Sunday Morning Chill
カフェの定番BGM〜癒しのジャズ傑作選〜 - Vol.01
Cozy Sweater Weather: Jazz for a Sunny Summer Day by the Seaside Café
Relaxing Night Lounge - Mystery of the Moon
Chilled Time at the Lounge - Warm and Sunny
Cafe Classics: Healing Jazz Masterpieces - Vol.01
心安らぐ午後のカフェジャズベスト
カフェの定番BGM〜癒しのジャズ傑作選〜 - Vol.02
Cafe Classics: Healing Jazz Masterpieces - Vol.02
まったり午後の名作ジャズセレクション
カフェの定番BGM〜癒しのジャズ傑作選〜 - Vol.03
北欧チルカフェ The Cafe at the End of the Universe
Cafe Classics: Healing Jazz Masterpieces - Vol.03
上質な午後の厳選ジャズコレクション
Hello to Hygge The Cafe at the End of the Universe
カフェの定番BGM〜癒しのジャズ傑作選〜 - Vol.04
Cafe Classics: Healing Jazz Masterpieces - Vol.04
カフェラウンジを彩るジャズBGMセレクション
Morning Breeze for a Happy Day - the Morning People
ジャズと紅葉の秋 〜心地よいカフェのひととき