Leonard White III (born December 19, 1949) is an American jazz fusion drummer who was a member of the band Return to Forever led by Chick Corea in the 1970s. White has been called "one of the founding
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 0xabb184d40325e52ac283019817afd71a9b5bc5c80f4b34a04a9228699ab561e1. 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/32d82e88-6dda-4c54-8af6-f13c50deab49.json and https://artists.proofprofile.net/proofs/artist/32d82e88-6dda-4c54-8af6-f13c50deab49.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 → 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 0x0a2ac4953945f31049963689451b2d3f4d98ca619054e4ba1e92a15ec70ffe90. 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/DKEFA0606701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38aaf0219b775a5294a776381185aea4ebff4c58828ec02ef6f2005621320b93. 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/GBKQU2003808.
Europe (feat. Claudia Campagnol, Marcus Miller, Manu Katché)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a3d799c6ebae34b031ed6ec677cfa405828123ce995d3092ff208469dee9c9. 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/ITQ001600286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4be16bb964b4b8bf45ced1d7df1edaf12cd2fd5db57bddfb8d4ef6b74b6a7c. 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/ITQ001600289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd28a767d575e851cc8f7b164a8126f31b95cd5023713b8b226ee07f3e81fa67. 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/US5AV1000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0512e6154381fd4acbaa73dc3f281925285cb92ec4590baa0aa0ce615a2440. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKPM72400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6eb5db4e8c370cf41d80bf0f07e4a092024266eee4722f87d802e735ed8ab1. 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/USHU20915502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2673564622d83a7ee211eb5bce9a625325884ac2c0af54637a6a15b5414955. 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/USHU20915503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe75fd693a6055b8361c31665c2a65c1adb452d709a2e30f4fda83a3b67a4c1. 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/USHU20915506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b617986110bb278a6ebeb214e60981bcfb9689a7d6baf514d3ff0387de370c. 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/USHU20915511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fe50ceeda7be101e04171015b029ada1aa3dbd5fa5ba51acbddf80a54fb4a5. 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/USHU20915512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95296547cfe119aabd92619decdb5535b5668cc28c72a0301242b181dd620fdc. 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/USEE10501069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec134fb51abe825c07d16c1aea97311f158fc854e5ad7e0d95615ea71514762e. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/USEE10414083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b6e79f2d48bac9f24a59b1536bfd9e3d5b58a995322019c92a6e463e9d4f20. 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/USEE10503835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752de84a4e03b91b72b168f5c3d8916caae2a3cf4c033e09d128047f2166a0c9. 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/USEE10701666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719786a816a6f5fdc47fc0eb008fd62298ed1d3e1494d25f2db7f6a14629ccf7. 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/USEE10701668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e46aede01303cbdb5ace766b2a8a52ae5006966cfc40e5898a1292d7d8c7a9. 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/USEE10701670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323f70c9d4128739f31a7e3afa56b2eed59fbe55e90d581991fd3f764a5d9338. 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/USEE10250775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6599b8b12d5d7a84020ae76fa213cfdda72a9fd20b3ec65665690f866fd86e28. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:51:12Z), 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/USEE10250776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57954b028256bb602df461ed977f794e12b79c90d7974cc7178d4055e1cb6dc. 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/USEE10250761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6462a16a2f4afe3a9ec74e86bb855b0f03f77441e97387d2f96d1dbe901798b. 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/USEE10250762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dfbfdfdcb57d83e92ffe95cbdd3ca790672bc741009b7bd5981b1be81279c0. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USEE10250763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5902ad2c16bdbc356068524a56827ad3c99da2c3d6402ca8a6633d89b392630. 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/USEE10250769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4febfaf085de19068840200b3a0eb5f15198991c3bfb2d87726a22eb18d2f9f. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:00:19Z), 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/USEE10250770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591a9d6aef85862c52dcf7fb0d629e59216c38d22910ceeabfff14916b24d79e. 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/USEE10250771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f130a324ca3c56577dadbb3e56da2e8aa11a7bed7ecc2ecf87357fcf2c5333. 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/USCW62017701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994bbf5edaa11e24febfef53ce1c8fe81388398ecc25b32b948913be9c6c22b7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USCW62017702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b42f7665ee11a4ef41f6fefab7e107d2e894807a5955bed8576ad7a605b2f3. 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/USCW62017704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0493c7162c67c7ef0f5409abc2307538120343e773810557721867aa145542cd. 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/USCW62017705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343d64421a087ca1d910ec58698acbd319ba33745009bf6a41af3ea31cf19152. 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/USCW62017605.
Didn't Know About Love (DJ Nipper Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7f39d03a419308b12d6d6c0f12bcbe26029ee4e5effa7c802a9e493ee8a175. 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/USEE10701629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08ef29c69fb7912c9a3bad918255238abe2ae60d0003d55e5c3a5039a1fd0f1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USEE10701630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9484ac7a734675ae65293583b319d3a6f5076642ea16583e66684aaf1d41ea10. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/USEE10701631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c0f4f9a11952852dcf4cf91523d7916a4d556bac2105ec06ba836eb75089ea. 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/USEE10701632.
The Studio Album Collection: 1978 - 1992
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cd516c27ca1d661edab7e3498ff825bc612f2a76e64013aa75d3545273f824. 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/USWB10601321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7347fe1f0d5c9b2dbdb0ae07d52330946bb886b06c39f19758f6b61173a113d. 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/USWB10100520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7081423cbaf469c5b214b320c5d4d373d025a26a271fe0ac3cd1e4df2a8363be. 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/USWB17900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185b9592e4989c0ff5100bdde64e09d15c0ed6f27c973b9ff7bab04b70cd1777. 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/QZTRX2495229.
Dr. Chesky's Ultimate Headphone Demonstration Disc
Drum and Bell: Walk Around the Mic : Test
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca827ecc5e1e7b33332b2e5b02f5b9f2cc90b552ccb3d716e0a46e07cf6810dc. 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/US99C0536120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c5487ac98a7acf9a447a33c81e270c2794651db6b4539d515060c236b0f958. 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/USCW62150009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3fb5450d6d6f7989afe54c67a4029ea1fc30ba5356e45cb0186356e50b149c. 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/USEE10800841.