The Boswell Sisters were an American close harmony singing trio of the jazz and swing eras, consisting of three sisters: Martha Boswell (June 9, 1905 – July 2, 1958), Connie Boswell (later spelled "Co
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 0x284b15cd1c9ec075988e44170e1912b37050081c2cdb3693bd28405c09e86516. 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/d8847983-1b59-46fa-bbbb-cfe06ca665b6.json and https://artists.proofprofile.net/proofs/artist/d8847983-1b59-46fa-bbbb-cfe06ca665b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nothing Was Sweeter Than The Boswell Sisters
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 0xc37894e18dc63fde563b5d2e65c2baa0aac783a27e07ecca5d8636aaacba4cab. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBBLY0606886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec95e78ea9cb993de06f13db7241d041c45a3dc2435e1952d460a6f5a7e8bf3c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBBLY0606889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06f95b8823d35d2754aef8525bedc94a3bc96146df062b418aa3ebf1c9a665d. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/GBBLY0606894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14aacf372e40eb942d8e3cb86f813616c516d7f90c4598882c39ac59ba969932. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/GBBLY0606900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6897f291c9e8d93900a3b8bf9b370e81c0f833d43d9589dcc3483ff1bd709e. 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/GBBLY0606901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5be893bee50d878459315e98054ddffd9131d3623fb72ed6da91345a5b8e031. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBBLY0606904.
The Boswell Sisters, The Object of my Affection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb386566bf82af36c669834ab05f75b5495e1279e170c700b605c03b6bd086e5f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEXO52468098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e51f55eb4796b85a1600dc398f5716cbb9def1e9e9fff179865a29531465d7a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEXO52468100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5232d4f55108148330765c5ff2fd859573940de2a0ae5c541bc076c69753a1a4. 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/DEXO52468113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3d622fd398aa3f25d0228fe59068597d01b36978a08e8c2f39ae234cea8b39. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEXN82257503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557d268a520d80028d3be40ec0ef142b843f7a54371200f6d9c3975e3fd15637. 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/DEXN82257505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1024f4a3c84ea06d079fedf857473fca206482a643732448652be0e65e77125b. 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/DEXN82257507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fde27b3def9d1fc67ef15b4c1c702f30af279a95de44c32cc1bf0daef75e1a. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/DEXN82257510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8629918d4a62bd61fb58618059d59e1be578ec0bb50b6ac25a27b909d2bcf7ae. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/DEXN82257518.
The Boswell Sisters Collection Vol. 1 - 1931-1932
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6e48a0d2cec68e7bc888e08f955aa0a1847c5ebf9366a84983bc7221d520a5. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DKEFC0815220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b15fabc8f5285fa4dc377c8b247f34e097a522807ce14f96ae7a6755f0da183. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/USSM13300003.
That's How Rhythm Was Born - 78rpm Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e28e3144bbace59c3bd43e19d0dba9c7befa635a30237ed9fc009d8609d3c66. 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/USSM13300007.
The Boswell Sisters Collection Vol. 5, 1933-36
The Boswell Sisters Collection Vol. 4, 1932-34
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee483fe2f43f161094060a8bcb830f5090a4cfc428fdc4d6847c8bb911a7a1bc. 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/NLB150400628.
Jazz Figures / The Boswell Sisters (1931-1939)
The Boswell Sisters' You Oughta Be In Pictures
Boswell Sisters' Was That The Human Thing To Do
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae49d3c2999ab07b592a99532c9608e0968fa98d24b4d3cdc22e7a27067b5a8. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/FR6V80803919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b3802068f2ea09f7f5af19de26ff51eda0acd8cdfdcf643e3da16f9be8ef72. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/FR6V80803924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29344a3f426873d3f0dcf79769f80983c381a7410016bcff6b893b27bbe0500. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBSGJ1304079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77bb08e9f4fdd49d43e14431713f0c383a0a7b2cde925c86a4a37cc11329f76e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR6V80867136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4e3695d84328bce98ab55f2ca80538335fd6f5da7bd38d8ddd940867efdf89. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR6V80867143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9668d50e1bdef1a8b0c1fd939f7cf1b41481125c2816cd14fa8d5345fd81ddb5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR6V80867149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069e5e584d9c1e0a245581f9602aa995d56b2855757261e68d038c8424f46420. 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/GBLGL0986146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d76ef2dc40bc9f68dec414e5c357f0176ad8945c6dc2273b11ffd2f468b35e6. 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/GBLGL1042446.
Beyond Patina Jazz Masters: The Boswell Sisters
The Boswell Sisters: The Object of My Affection
The Boswell Sisters, 20 Essential Classics
Supreme Female Jazz: The Boswell Sisters
The Boswell Sisters at Their Best, Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5eb06da33f7dd21b95fdfbf8d13749786522ba21165e79725cb471ec026186. 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/FR6V81534684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7529203d1db53f49e8b5ae3f32147639d088b6169ac6943fe1db2ff51912150. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR6V81534701.
The Boswell Sisters at Their Best, Vol.2
They Are Some Of The Greatest Jazz Singers Of All Time
The Boswell Sisters Compilation (43 Tracks)
Top 75 Classics - The Very Best of The Boswell Sister
The Boswell Sisters: Syncopating Harmonists from New Orleans
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8644087ef632911bc6843432f17ec9b18f2eb40af752a7312abc647fb6a7d5. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/TCADL1881297.
When the Little Red Roses Get the Blues for You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d989caa17bf7c6c341fdd5506549acf5d18218108895965700d4674b4bee606. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/TCADL1881299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e05a2488231f9a169226e6cf333c1f78644b7c3f2f692aeacbd1e7cdd61ba0e. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/TCADL1881354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc05893dcb2a7fd9f61270b7c75e4c7ce4809e01877578b47577d76d747b402d. 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/TCADL1881356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e8080cc3462189f7cce6e149efa8953b51ccf4dd1683535d15c706a12639e9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/UK6822012756.
Top 52 Classics - The Very Best of The Boswell Sisters
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf851d3e5744830e25d84a8623268aca18825b42cac4fd0b1206ad0c61e0b8a23. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AUXN22253998.
Harmony Queens - The Boswell Sisters' Timeless Vocal Jazz
Sugar to Tea: The Boswell Sisters Compiled
I Found a Million Dollar Baby - From Paper Moon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30537b11726388e611a334e11a81d87ffa1c7bea0c8ce80d2758422e2592a121. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/GBBLY0900495.
The Storyville 60th Anniversary Celebration
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91873d0074bfb2fca13e0a54c9570a4afd5a68b98abffae71880215b32fe6f1e. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DKEFD1001120.
Music from the Motion Picture The Curious Case of Benjamin Button
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e28e3144bbace59c3bd43e19d0dba9c7befa635a30237ed9fc009d8609d3c66. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/USSM13300007.