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 0x0e29c186497c40360f0eaa67fe3702ece36124d1acbb45c5d792f28e0049972d. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62b17ae6-4660-46b8-886c-b1dee6d634a0.json and https://artists.proofprofile.net/proofs/artist/62b17ae6-4660-46b8-886c-b1dee6d634a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Relaxing Instrumental Background Jazz Music for Autumn
Smooth Background for Relaxing with Coffee
(Vibraphone and Tenor Saxophone Solos) Music for Morning Coffee Thoughts
Quartet Jazz - Background Music for Spring Creativity
Contemporary Quartet Jazz - Bgm for Morning Coffee Thoughts
Simple Jazz Quartet - Background for Morning Coffee Thoughts
Vibraphone and Tenor Saxophone Solos - Music for Morning Coffee Thoughts
Bubbly Music for Cool Spring Days - Vibraphone and Tenor Saxophone
Music for Evening Coffee - Exciting Vibraphone and Tenor Saxophone
Successful Background for Favorite Coffee Orders
Backdrop for Caffe Lounges - Laid-back Vibraphone and Tenor Saxophone
Jazz Quartet - Ambiance for Unique Perspectives
Deluxe Background for Refreshing Coffee Beverages
Thrilling Jazz Quartet - Bgm for Infinite Dreams
Soprano Sax Solo (Music for Infinite Dreams)
(Soprano Sax Solo) Music for Balancing Hours
Lively Trumpet Bossa - Ambiance for Morning Road Trips
Trumpet Bossa - Ambiance for Yesterdays Dreams
Magnificent Trumpet Smooth Jazz - Background for Vacations in May
Smooth Jazz - Background Music for Inspiring May
Awesome Quartet Jazz - Bgm for Slacking Off Sundays
Music for June Evenings (Soprano Sax Solo)
Tenor Sax Jazz - Ambiance for Cafe Summer
Music for Energetic Keynotes (Trumpet, Soprano Sax, Tenor Sax and Guitar)
Sparkling Tenor Sax Jazz - Background for Summers of Love
Guitar Bossa Nova - Music for Morning Wellness Coffee
Trumpet Bossa - Ambiance for Morning Wellness Coffee
Sophisticated Jazz Trio - Background for Mornings Study Session
Music for AM Throwbacks - Vivacious Jazz Organ and Guitar
Suave Jazz Trio - Background for Deluxe Summer Time
Simple Jazz Trio - Ambiance for Autumn Beginning
High-class Background for Last Minute Holidays
Music for Summer Thrill (Jazz Organ and Guitar)
Music for Quiet Loungers - Jazz Guitar Solo
Music for Essential Thoughts (Jazz Guitar Solo)
Latin Trumpet - Ambiance for Hometown Trips
Amazing Background Music for Creative Sky
Classic Music for Repeating Nights - Jazz Organ and Guitar
Music for Repeating Nights - Jazz Organ and Guitar
Music for Infinite Days - Uplifting Bossa Guitar Trio
Music for A Great Breakfast - Jazz Organ and Guitar
Backdrop for Cool with Coffee - Understated Jazz Organ and Guitar
Grand Background Music for Lounge Mornings
Exciting Easy Listening Piano - Background for Focusing Flows
Unique Music for Mythical Energies - Piano Bossa Nova Duo
Fantastic Ambiance for Delightful Essentials
Backdrop for Sure Visions - Piano Bossa Nova Duo
(Acoustic Guitar Quartet) Music for Sunshine Memory
Brilliant Music for Monday Work Cafe - Latin Piano Jazz
Piano Bossa Duo - Background for Smooth Timbers
Marvellous Easy Listening Piano Music - Bgm for Accurate Work
Exciting Background for That Familiar Feeling
Understated Easy Listening Piano - Background for Adventurous Ideas
Luxurious Easy Listening Piano - Ambiance for Important Goals
Music for A Lonely December - Deluxe Latin Music
Music for Sleepy Winter Nights - Latin Music
Music for Sleepy Winter Nights (Latin Music)
Relaxed Music for Sleep Channel - Latin Music
Music for No Stress December - Latin Music
Latin Trumpet - Ambiance for Every Holiday
Pure Jazz Piano: A Focus and Clarity Enhancer
Peaceful Jazz Piano: Comforting Pet Melodies
Focused Jazz Streams: Coffee Lounge Concentration
Jazzed Pet Harmony: Piano's Tranquil Bond
Mellow Jazz Vibes for Ultimate Relaxation
Soulful Jazz Vibes: Classic Club Grooves
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 0x4d189d50d737b7689befa74345135328815c0b6400ae775353d5317a17da8305. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZZEC2419527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2280950e370f2574457a69ab9747f379d58a742949ddb207b81184043714728. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QZZEC2419541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181d0c66c968cef1980e6bc2b666dce2e6b876d28b4dc01fd50f075aa0d68e75. 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/QZZEC2419561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21effa1b606134db0f535db15e6ff0dae9c8ae32d62fbdabe591b4187c41b5d. 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/QZZEC2419590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44d2c417d58c71b1626715db1b014ca68902763d23141d1636be31b28c6a92d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZZEC2419607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770d1601a76a214e041d2ed115ae0a5874f9e8ae9b724ae6e3421e82a9beeb69. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZZEC2419534.
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 0x05dc224bc1a219bae55b1710cd2d2d909779a58d8391e47aa04a483e8052804a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZZEC2419547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ab35240bd6389aa9759d678b57c51fd68a48769628593455b213e82d15c3ad. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZZEC2419554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5988edb816ffb2a64a961a7de882fc0ae6d5433286b3a521e005c98ec953083e. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QZZEC2419568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ad994039d26862c51756bfdf28bcb3ffff7094414d1de3cdf8c1c69b813bc5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZZEC2419574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab93ff039fc4e8ec67120b897bc28bf4dff4c95e5fb3b502b151eb385d9bfa6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZZEC2419582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927876a14f735e062c6454307bb58304b6f50f4d47744020fc5127ffb4a9770b. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZZEC2419598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afa4f1fe8090aa922d4aa976a30cf329b4e4c8d81bae17d048ddf73a59c3b6d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZZEC2419615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798fa013ee75b133291b2e1c85845a66f72722860c3b360f8c0db69da6f73277. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZZEC2419623.