Benjamin Anzelevitz (May 30, 1891 – October 20, 1943),DeLong, Thomas A. (1996). Radio Stars: An Illustrated Biographical Dictionary of 953 Performers, 1920 through 1960. McFarland & Company, Inc. . P.
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 0x0c8843fcfa7fb9d86d0a3a64d285bd8c2cc2ae3068c80f8c91ff51bb01beece9. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32aea9db-0afd-49c0-9fa9-30954773080a.json and https://artists.proofprofile.net/proofs/artist/32aea9db-0afd-49c0-9fa9-30954773080a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
My Sweetie Went Away (She Didn't Say Where - When - or Why)
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 0x4c9a6e4c6fd1fd9e84fc159a02e43ccad2a243d2248c8ef435a88f0259378da7. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/DEXO52492036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cabcae16f88c6738d7c33e37d42bf807b47349aab6a65dd951756d5b5a0e446. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/DEXO52492037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bc3750075214fc7a81a9e95fed4d088ec68509cb1eeb5912b21394c692689a. 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/DEXO52492040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1188f755b84cd9a9006865915883f1084407e724249fb0959859199a98cab39. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DEXO52492043.
Top 75 Classics - The Very Best of Ben Bernie
Best Recordings - Ben Bernie and His Orchestra
Gatsby's Jazz Nights, Vol. 6 - High Society Swing
The Naughty 1920s: Red Hot & Risque Songs of The Jazz Age, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ccf35e9438e9ec53eb95fcc45e054518b5b58c4f9ddcbc9bcfac3b286a8f99. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USM2U0804385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c65e776050291abc8cb8bfe0785ccf9e946df28cba704f54bf305f6c0e4f157. 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/USM2U0804373.
Menuhin & Grappelli Play Jealousy & Other Great Standards
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75774b6c6ee9dfac3bfc3428dc35ecddd7fc51f7a59ba768538b91a4486f843f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAYC7900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cf8f3d85bfa4827f83b091cee6e39bb1d1fa768ef85f8f3f07670f1673c76d. 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/USXTN1073768.
Porter, Cole: Let's Misbehave! (1927-1940)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9891efd20bde0b49621f87447aa41c1c33796064c3c5753cf50ccb2626ddde7. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/HKI190053405.