John Patitucci (born December 22, 1959) is an American jazz bassist and composer. Biography John James Patitucci was born in Brooklyn, New York. He began playing the electric bass at age 10, performi
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 0x96ac4b382692721057984cc960a830ba1b5040e07d04b7dc5b165d6afb22bf8a. 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/b8611c23-161e-40cf-bfcb-f0bd1ab9b21e.json and https://artists.proofprofile.net/proofs/artist/b8611c23-161e-40cf-bfcb-f0bd1ab9b21e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Scorched - based on Tunes by John Scofield: Make Me 1
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 0x4980a129bcbf0456c010d113c96712afea1768466953ca0d482090668996a1a2. 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/DEN960232201.
Scorched - based on Tunes by John Scofield: Make Me 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629e208258aae23db7f379430777dc03bb4bf8c813df98da39ebb07fb58c0c5c. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/DEN960232202.
Scorched - based on Tunes by John Scofield: Kubrick
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df6aa4a60d53731c1b739d395a0d2ae40611518ba5452218890992fe731c055. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEN960232203.
Scorched - based on Tunes by John Scofield: Away with Words
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb41696126bf38a91a857898434edfb9e45c47ec855d653a7eca738833233bd. 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/DEN960232204.
Scorched - based on Tunes by John Scofield: Fat Lip 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d84ea32a0451d31ef698b0875cdc00a23e75230a2aebefa132b7274f8877a2. 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/DEN960232205.
Scorched - based on Tunes by John Scofield: Fat Lip 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea71b9a373d687860872b6c04aa131575cfd0e8db893f8bfebd63f548403a1d. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/DEN960232206.
Scorched - based on Tunes by John Scofield: Trim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cde62897f995f35477b85cd5c4e23cc707a3fc2539071fc824d88c03223ffc. 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/DEN960232208.
Scorched - based on Tunes by John Scofield: Let's Say We Did
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad397d72d29525e361ce72340f8f7a2d25ee753c5c4dba7c8bf5fed2eb9ade99. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/DEN960232210.
Scorched - based on Tunes by John Scofield: The Nag
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf824c602766dd86f388cd255e20a2bfb6bf2a17da954cdf122035d868efd6af5. 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/DEN960232211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a02e5025f94c8aaf5e33c30fe12f0d766849d95ec5d44b56f90715908a4135e. 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/USLD91757068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bcdcbe58f075086141c079e4403581a28203b7b45d99c875e668e96db74b8a. 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/USLD91757071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f3f2750cd92d82e522b7e6e4a904ed3ef668c8888bddc11be4e72f077c49b5. 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/USLD91757074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac18525e2bfddabea851f350fcf4a89551d74c971db4cd3af00f5a62a7e8f60b. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USLD91757073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca92b38dbb945d7ea9d7af62dce4a25e3c9cf759c3bc759b4e4f6b00f5db8150. 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/USLD91757067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ea941be8c25051c75ec2152b31c18a83895a928b01cd69a930fc2888d73666. 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/USLD91757070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa294b7bcc26467a38fb316421717bbb2837a18869d13a8c7a0b6296866a1eb2d. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USLD91757072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9144c9f1cf36eb8bac81b204c79a250a248685a7babbf83263a088f516706f3. 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/USLD91757078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe099fd40e832623414daad8ccbb50f5eaf86bab5501fc4aa19e8e1cb5ff0fb28. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USLD91757076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda30006b227d41db3184ea95418cb07bc2ef0b1909527d3b72d266f2fcbde5e. 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/USGR19700072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3deaed30ad11d6c8e1eef4c895f53fa8067f4d576513e7f6d16e8b71a9d4e8. 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/USGR19700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d7e73cd5ff945c84112ef716df41a383b0ba8c4c0c3300d9a02249a75a269d. 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/USLD91754916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dbb2f7da130970643061cd811ba37c5001a12372dada3cb91a87fd23482c9d9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USGR19700070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3f3c5646d31e51445dd41e9e8fe8f345673bf109a40f8ee5cc42d84d8a8b41. 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/USGR19700075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61f579a3edaf65da2137954b81592970fbb094e6a41ba926e8ab8abb5b92a34. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USGR19700069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e93e87ea812f01c81acecdaf1505a7cbb0aaf8cfbe4173aa1eb2cd15cf31e1. 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/USGR19700071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3deaed30ad11d6c8e1eef4c895f53fa8067f4d576513e7f6d16e8b71a9d4e8. 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/USGR19700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c17be1640bb9feabf3369face9afcb16912c181255717c2c6911663b64c599. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/USGR19700076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e93e87ea812f01c81acecdaf1505a7cbb0aaf8cfbe4173aa1eb2cd15cf31e1. 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/USGR19700071.