Neal Paul Hefti (October 29, 1922 – October 11, 2008) was an American jazz trumpeter, composer, and arranger. He wrote music for The Odd Couple movie and TV series and for the Batman TV series. He be
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 0x285d46067ac9d1ab842c4bc743fc6b154e479c7f0c017bf53cd2f984f69a0350. 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/90a645b9-5045-445a-a59c-0b770d54f85e.json and https://artists.proofprofile.net/proofs/artist/90a645b9-5045-445a-a59c-0b770d54f85e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
L'orchestre qui chante et qui danse (Mono Version)
Sex and the Single Girl (Original Motion Picture Soundtrack)
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 0x7c3498540ae79b954d3624aaa08ce54aa21df3e896610c7fa93c156b23aeb6e8. 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/USSM16501511.
Neal Hefti - The Greatest Hits Collection
Barefoot In The Park / The Odd Couple (Music From The Motion Pictures)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189451a1e981ec9dd2a2c4816a83c62a968d65617eb1b82a84caf9d4dbc1d5f8. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/US3M51620701.
Essential Classics, Vol. 293: Neal Hefti
Cinematic Cool, Vol. 8 - Hollywood Soundscapes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9256c4b145e268bbbfd2316bf00cde84f2f23e9087697f189567a172b7c1639d. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/AUXN22515716.
The Definitive Superhero Themes Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f0302016dfa6abc0c0442693df9adb174a942a0086cb522e4731b56adac4d8. 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/GBAJC0900001.
The City of Prague Philharmonic Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf788309578e5f9cc561993b74c5394a9708ff7778638d4837d82edbfdac4a7d0. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBAJC0304401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f5b681b847a4bbe929a59183379afabe312fd4b9bb055cdc8815669e2ff894. 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/NOBFM1804140.
The Music of DC Comics (75th Anniversary Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cf94c73be5631a04dc59fd04050305c0ebe83b489e89c2bcf02c8fa326f1d2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USRC16607625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb89dbce5b506ade564a80b01270c2efa3ae1aeee1ffa0f5e96fff64acec2c6e. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/CH1602311560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6684b2f8f9e7a0e763613f1cf21db4a8f548e5c35537c0bd09894fe625462ba9. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/USSM10005511.