Buckshot LeFonque was a musical group project led by Branford Marsalis. The name Buckshot LeFonque was derived by Marsalis from 'Buckshot La Funke', a pseudonym used for contractual reasons by jazz s
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b8bcfc4097c135d42fb8a94a61a31fcc98ede6d88a98ce807a21fcec323d52. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0697a1aa-1082-4f5e-9b68-4f1884536383.json and https://artists.proofprofile.net/proofs/artist/0697a1aa-1082-4f5e-9b68-4f1884536383.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeac083642fb4bfa2dc473c236dd5d710d126c00e7761c55f465abbe8d484503. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/USSM10025554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4810fe7118c0aba54f5cea64e976e5d734878878db1083f9a55b3f6a52fb9d0e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USSM10022910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcb68d842fb3517618f5308c35ba6af414ff418fef23e247189977f6be9886c. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/USSM10027186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87d59ddc49147b32af46efad75efcba9d1c0dc2f075afdb8922d96c246532a5. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/USSM10022927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ba2c2f6438344ebd06330c750b12fe0a81f0d5829bf307bfcf4b018f53ae99. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/USSM10022928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba25c92131e7445abdaa2ed97ac2c685f820de0f50c219da55768a18ad26c30. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:54:50Z), 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/USSM10027794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3755a150f381757785e2cd9e079c080a9fdcdf851f20bc1fa26bc6ecedb141. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/USSM10027444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe50734702911a50d438a9deaa2d41318723143af26972ff9358422e271bbd49. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USSM19402150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65b99fbce04c7c87734e3db35a887cea84f4f672d491f8e2bc2f6e0cadf7bcb. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USSM10027445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633cf24679510bbb1850afc775358f7f74d667301e3b3f28ce5693b0f35b0aaa. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USSM10027446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b91c7a43328e42bbfbd95b6b39fd0549f5a7086c0658b968d5b117be8f6297. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USSM10027447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c19a55b448c95b917bce67c551d83cbc14fe271e3e8649ebfa7b20ce1a7a05b. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USSM19603637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1862430898e22ead0bff089531c22e561a10351a5b0e007f6608e657fe45d6c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USSM19603636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ca3871543633d251985d984dbd49e9c84c6cd22c17790913b48e548b1a385a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USSM19603642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa262ef5d72784879c92e3a399fac66d39d03f5c45af6472eed10af682d3c80. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USSM19603643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1244b71b82dc1593e43376393ee95d6d615ec1f8de79fefa6f099d4257f92599. Chain 2 (Bitcoin): anchored in block 958660 (2026-07-19T04:21:53Z), 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/USSM19603645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193a73139fa455902bace7a09ad2624a4dfd48630d91f94c2d33149fff243bfa. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USSM19603648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70555b50309dd2b6b82279de4c22d348ac80ef81fbc41d283ee891c971127006. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USSM19603649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcef48a7603e2c89ba8ddcaadd90cd48d999729e43bcc5d03d6d1c9a4028d361. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USSM19603650.
Once In The Life (Original Motion Picture Soundtrack) [Digitally Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2132cd26d1259faf905f0044cdcab36954d3e06d6428ed4da459832beaa723. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USGZ21243153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb404b4370577b9ff5993e26972d9a87d4288c8c30127b653b9637f4d9ad7ef5b. 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/USSM19605139.