1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xfeb97bf2d4091ccb5eb8835a2969ed81308b398c7c2d6b996fc10f59c3ea8d7e. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19e6b2a3-c42a-471b-8245-796bbba5075d.json and https://artists.proofprofile.net/proofs/artist/19e6b2a3-c42a-471b-8245-796bbba5075d.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 → block OTSBitcoinBlock must exist at that height 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 0xedec354d58eae1309387231488d604c4655a0015c923c3396ebdaec117ee7680. 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/GBLGL1116162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d62cd3abec03e819c8f36091acb76b9bfa4e9844c283eab06b72201ba88953b. 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/GBLGL1116174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9156bc1e99c268b830d4105de79100b214b00a7acb5b6954c0852c12b440d24. 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/USC9R8102706.
The Uncollected Ozzie Nelson and His Orchestra 1940-42
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2b58dfcd228e0e6ed19e327b720777405e0055c85d1a336889c265b03e7bc8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USV291381869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e3bdf2835b95dcf9c77ba47a1613f9245e352fe1d3e7f3a0b2452736f978af. 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/USV291381870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fa0ed203eecaaca9e2ce6e1746cef41df13e01bf9900004db68b53119b6abf. 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/USV291381871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc46f546e992d005a6cf3ff211997b4f733ff15dc2f2f415a44d9469dd4af05. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/USV291381875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7920bff68387bd23c263fca41dc91cafedae487745852bfa1ba02144fc6280ee. 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/USV291381879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e80cbeda077cf0536a9444a7806521e6f1c5248172fbb87f2cb0ec4a48d203f. 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/USV291381880.
It's Only a Paper Moon - From Paper Moon
About a Quarter to Nine - From Paper Moon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc183eb8d88733cf1298cda558d115ab69cdcc70cce293109c95ada9a10d0b1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBBLY0900490.
(It Will Have to Do) Until the Real Thing Comes Along - From Paper Moon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6994882846928eb8019c641c6f8f393224ef812621d84962b03da97e0810ae4d. 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/GBBLY0900491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea648dcff38d85c2a3bb3a08b9de1ef1c7b5dff4aa834c4db1b16d497f6675df. 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/GBBLY0900493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18afb82e04d4059a0396b33985b932d3996a1d32667e07ae505ae3d17f78446. 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/GBBLY0900494.
I Found a Million Dollar Baby - From Paper Moon
The Object of My Affection - From Paper Moon
A Picture of Me Without You - From Paper Moon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf553521208c82000b616069d9593b8586683010181a705f93afa88679a3812fc. 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/GBBLY0900498.
On the Banks of the Ohio - From Paper Moon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe7c65d1fa0a41f0b8c3003d36f6b42265a0b87b5376b6fbf587fb142a314c7. 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/GBBLY0900499.
Let's Have Another Cup of Coffee - From Paper Moon
Enric Madriguera and His Hotel Biltmore Orchestra
Limehouse Blues - Vintage Thirties Recordings
Are You In the Mood? - Vintage Thirties Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd993c77c238c078706771594e395697a5096e29ba263278ce9028ab96cda6dfb. 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/GBBLY0900505.
You're Driving Me Crazy - Vintage Thirties Recordings
When Day Is Done - Vintage Thirties Recordings
Leieberstraum No. 3 - Vintage Thirties Recordings
Mystery Pacific - Vintage Thirties Recordings
Improvisation - Vintage Thirties Recordings
Minor Swing - Vintage Thirties Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80f79c09802ef119520859e194fcd47fdca0179a30728f39292ebb7cd5b041d. 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/GBBLY0900511.
Swingin' With Django - Vintage Thirties Recordings
Echoes of Spain - Vintage Thirties Recordings
I'll See You In My Dreams - Vintage Thirties Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0bf91f6f823e4ca136839d82a57120470f71679bef7801b6c397344826ab39e. 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/GBBLY0900514.
The Big Broadcast, Vol. 3: Jazz and Popular Music of the 1920s and 1930s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9c72599f7c3f67d5ae58a3fbf1f7ccf1bbb8a069d9d3d826ba44938611adcf. 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/US6R21320851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcd3f8bbb0bcad972b41261376e291933be635fc681da7398f8a18a6a1bee5a. 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/US6R21320853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876fd0f223e486f2655e561f70a9e73129fb2e0dff57b10754a3ae3f19c8293f. 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/US6R21320857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216c1ec68428573de5c708fa3816a815243006f963c0f69174b2e158f5b78263. 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/US6R21320859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855edd2316aaeea99650c3c5c3cfbf621d7a7e7b58cc980faca499b472198786. 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/US6R21320861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36c392509da19fe049d7c268a03e946370c6403fdef182b15b846be29b88c6b. 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/US6R21320864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089ba8d17fee95e7dfef2997fb0ebb52eb97a35c734e8a3b793c342f54d2c9de. 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/US6R21320865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd996d8cb8322fda57b14f9ba9033b2fc375278ceedaa2558ce40edc13462513c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US6R21320870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0519a6877e17c71042b1978713c4380ff1efe3beea4a6d09aab9a4a2766431. 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/US6R21320871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b0924e59ec33a23a6adede2fb4997fdde6dc68efb88d3d36d72bb8dfce75be. 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/US6R21320873.
The Big Broadcast, Volume 8: Jazz and Popular Music of the 1920s and 1930s
I May Be Wrong (But I Think You're Wonderful)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4421be09d83ca4c88a619619e816f9f9b2b44e86841ce2edb9fdcae9919cf2b. 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/USV351311373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb285233b090d094aea32318a5dbed7eebe4d53b7dd230166e3d00e1925feae. 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/USV351311383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20fe58532836b45e2a78bb7867cb7730dc6ca762db9656b4614c03f3e61a5a11. 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/USV351311384.
Anson Weeks and His Hotel Mark Hopkins Orchestra
Xavier Cugat and His Waldorf Astoria Orchestra
Enric Madriguera and His Hotel Weylin Orchestra
Gus Arnheim and His Cocoanut Grove Orchestra
Nat Brandwynne and His Stork Club Orchestra
Raymond Scott's Merry Melodies (Vintage Takes on Scott Tunes, Vol. 1)
Swing Swing Mother in Law - Vocal Version
Dinner Music For a Pack of Hungry Cannibals
Mountain High, Valley Low - Vocal Version
Tiger Rag (Version of a Jazz Track Vol. 4)
Ben Bernie & His Hotel Roosvelt Orchestra
Sweet Music - Let's Dance At The Make Believe Ballroom
Let's Dance At The Make Believe Ballroom
Lud Gluskin and His Continental Orchestra
Swing and Sway With Sammy Kaye and His Orchestra
Dick Himber and His Essex House Orchestra
Ted Fio Rito and His Hotel St Francis Orchestra
Richard Himber and His Ritz Carlton Orchestra
Bert Lown and His Hotel Biltimore Orchestra
Vintage Swingtime - Ozzie Nelson Big Band Classics
I'm Looking for a Guy Who Plays Alto & Baritone & Doubles on a Clarinet & Wears a Size 37 Suit - Live
The Only Thing I Want For Christmas (Is Just To Keep The Things That I've Got) (with Jerry Joyce & His Orchestra)
Children's Songs: Jingle Bells / Silent Night / Christmas Holly / Our Christmas Pie