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 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 0x44335586fcafc521d1bb67614869af7b4fccdf4d284a99e8d8160f5e373ae2eb. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b002a3a2-fca4-4c9e-b8db-827e0e7bc880.json and https://artists.proofprofile.net/proofs/artist/b002a3a2-fca4-4c9e-b8db-827e0e7bc880.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Outstanding Background Music for Rejuvenation
Tenor Sax Jazz - Background for Unwinding from Work
Music for Afternoon Relaxation (Trumpet Jazz)
Electric Piano and Alto Saxophone Solo - Music for Cleaning
Music for Cleaning (Electric Piano and Alto Saxophone)
Music for Reading (Electric Piano and Alto Saxophone)
Music for Remote Work - Modern Electric Piano and Alto Saxophone
Laid-back Jazz Piano - Background for Work from Home
(Tenor Saxophone Solo) Music for Cooking Dinner
Backdrop for Preparing Dinner - Tenor Saxophone
Music for Work from Home - Subtle Tenor Saxophone
Tenor Sax Jazz - Ambiance for First Dates
Trio Jazz - Background Music for Lunchtime
Music for Dinner - Artistic Trumpet Jazz
Trio Jazz - Background Music for Dinner Time
Tenor Sax Jazz - Ambiance for Relaxing Cafes
Music for Cool Cafes - Awesome Trumpet Jazz
Spacious Tenor Sax Jazz - Background for Coffee Dates
Tenor Sax and Trumpet Solos - Music for Relaxing Cafes
Tenor Sax Jazz - Ambiance for Cool Cafes
Music for Breakfast Time (Trumpet and Alto Sax)
Cultivated Background Music for Breakfast Time
Sumptuous Music for Evenings - Trumpet and Alto Sax
Jazz Trio - Background for Breakfast Time
Spirited Music for Breakfast Dates - Bossanova
Tremendous Music for Coffee Time - Trumpet and Alto Sax
Fashionable Background Music for Friday Night Dinner
Exquisite Background Music for Calming Work Days
Music for Deep Work - Lovely Trumpet and Alto Sax
Charming Trio Jazz - Bgm for Working at the Office
Music for Calming Work Days - Trumpet and Alto Sax
Music for Wellness - Simple Trumpet and Alto Sax
Smart Music for Reading at Home - Big Band Ballad with Guitar
Music for Autumn Moods (Big Band Ballad with Guitar)
Big Band with Tenor Sax - Bgm for Rainy Evenings
Distinguished Background Music for Date Nights
Bubbly Music for Classy Restaurants - Trumpet and Alto Sax
Cool Jazz Trio - Ambiance for Classy Restaurants
Trio Jazz - Background Music for Romantic Dinner
Backdrop for Cold Brews - Dashing Chill Out
Spirited Smooth Jazz Chill Out - Background for Morning Coffee
Smooth Jazz Chill Out - Ambiance for Yuzu Coffee
Astonishing Background for Weekend Holidays
Soulful Guitar Chill Out - Bgm for Midweek Staycations
Music for Long Weekend Getaways - Chill Out
Guitar Chill Out - Background Music for Weekend Holidays
Smooth Jazz Chill Out - Background for Wellness Vacations
Music for Seafood Buffets - Smooth Trumpet and Alto Sax
(Jazz Organ and Guitar Solo) Music for Touching Souls
Backdrop for Cooling Off in Silence - Jazz Organ and Guitar
Remarkable Backdrop for Working September
Acoustic Smooth Jazz Guitar - Background for Gold Collection
Swanky Smooth Jazz Guitar - Bgm for Calming Taste
Distinguished Ambiance for Atmospheric Power
Latin Trumpet - Ambiance for Reclining Afternoons
Sensational Music for Peaceful Melodies - Latin Music
Acoustic and Electric Piano Jazz Duo - Background Music for Jazzy Oceans
Latin Trumpet - Ambiance for Lazy Chairs
Pulsating Music for Jazzy Oceans - Piano Duo
A Lofi Ride: Soothing Lofi Songs To Chill Out On A Summer Day
Terrific Music for Autumn Leaves - Trumpet, Soprano Sax, Tenor Sax and Guitar
Guitar Bossa Nova (Music for Autumn Leaves)
Music for Autumn Leaves - Modish Trumpet, Soprano Sax, Tenor Sax and Guitar
Backdrop for Great Lights - Bossa Guitar Trio with Jazz Organ
Dream Like Bossa Guitar Trio - Background for Warm Shadows
Bossa Guitar Trio - Background for Warm Shadows
Tonernas Magiska Resa genom Jazzens Historia
Barking Jazz Buddies: A Piano Dog's Tale
The Jazzy Coffee House: Smooth Study Vibes
Café Noir Chronicles: Jazz Infusions from the Lounge
Tranquil Jazz Euphony: Café Lounge Serenity
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 0x79799a5bf28b52143931a9e6a33e923810d28c3ff03135b3c3b66e356074ba7d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZWDD2380219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2721cdd891a6da514a5357f53002d3025edbf53ec530e8077c87634eb52d4148. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZWDD2380223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab5a4eb6ce1c92ffb452143e27fd2e8e0de2904f207613967e65661373349b2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZWDD2380228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51983a816a1aaf11b35c3893331a0d44edb9d7338d34ca61f6803b94d74a7b7. 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/QZWDD2380236.
恋するわんこのパピー・ラブ・サウンド
肉球を揺らしたくなるようなわんこのダンス・ヒッツ
Harmonic Jazz Music: Symphonic Blend Tune
Jazz Piano Dialogues: Urban Conversations
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353f7bfe85dcffeb7b5dbfb1403adb7bcdf30208df3ecae7f3105638c4ca8e5c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USLZJ2462804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86baaae78e2729d9524c52bb699ea6cb12aee34f52c3825864c84bddb5f0de51. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USLZJ2462840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7971aa4fa7d4917cca51be4f4d3f7efef86fc70be8789d519c230b5a7854bee. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USLZJ2462868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a31e2fc66edcc6cd6873e71fe2e39e36ba4e00df5cda343b7483e4a73456eb8. 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/USLZJ2462888.
Serene Jazz Grooves for a Calm Atmosphere
Jazz Rhythms for Relaxing Peace and Comfort
Yoga Harmony: Relaxing Sounds for Tranquility