Joey DeFrancesco (April 10, 1971August 25, 2022) was an American jazz organist, trumpeter, saxophonist, and occasional singer. He released more than 30 albums under his own name, and recorded extensiv
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 0x5c35dad821771fa438f570ea08cdb0535262d650cb237eef7306c8d5e95f6e75. 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/2e9de61c-40ed-4708-bc3b-25e748fed4bd.json and https://artists.proofprofile.net/proofs/artist/2e9de61c-40ed-4708-bc3b-25e748fed4bd.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 0x1dae347dc351b0fd73b032427d35b924640ddb1a38f3383ce94a51482a383857. 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/GBCQT1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4d421adbf664752f787961cb6d4d78fadf6b5ab04b9ed6cdb621d555bf09de. 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/GBCQT1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb04a73edf50289f8f3b57dc7493e5b6eb6fd2c181a18c983c9c5181d4881f66. 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/GBCQT1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14036f0fa3888809bd16f0d20b36e91ab50bca5cef4f106f426600fcec70736. 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/GBCQT1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099a2d375638daf25d5e66598b6a8ee4489fa126d4c6d749c6715ac0777ab4b6. 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/GBCQT1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a9c11c004d88d6ac6ac85c43ec577950dde4de63667b13510d942d44a1cc3b. 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/GBCQT1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8076cd6ea42f14e11c6ba81f40ded4b5563598c4ae786e89231c3a4092e3c6a6. 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/GBCQT1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d83f4e5a3cb24ecec4415fa89eab2af660e0420db5a274d7049ad8f6369eaf0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBCQT1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679cb22144c928a54c861887a5938454a5d62d1b54128ef61adfaac059045044. 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/GBCQT1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e29114f90c862a3b5717b68c5ca8857e0e1c7be6c18102f8deda4bb912eb2df. 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/GBCQT1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe98ff409de1f133ba6413a0c51e16d6b5e95ddddb699673f8c9a5b708b03ce. 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/GBCQT1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03be293e346ee4eeae945e091209bb2a997c217033e57f1df0ef3c3f61e13c0. 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/GBCQT1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd603d40f7c1eed88c2d1db6d7ef86dc732ec0f11dff859d06bb4e52104592426. 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/GBCQT1800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdfb8196a1a796d0624f6a8f43c0f0bf78fb95dd262c64ccd63f8aed66e59ae. 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/GBCQT1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b85c56bd22cbcbacaa7531b947c9ce41c03cda6ad9595f43aa2a9bb42f93f41. 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/GBCQT1800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f56222be0506b44990ef0ffe54cb40dbbce39ef8dc4febb42c2a81cfd450a8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USUM71319541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f520f7e88d2a95fc13406f2d250a9770dd580feba3b5fa7bb1abecdbe4c5d67. 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/USMAR2118601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef11b41260013fe4cdbf61fb898635ccade0a202c1e56cab903ecc19a701853. 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/USMAR2118609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e4069470d9b641ec8bcb4c30b93d19c7ba9d1ca62a5740881eea45f1f12859. 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/USMAR2118611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0057971775fc650364dd2348c61975af37fb66d6514a34d28767bfdb6faccca. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USHNR1325601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6118a93791c99af88933e6de867d377ed35e1a29dbb70ed8bab1ba9543a773. 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/USHNR1122604.
Never Can Say Goodbye: The Music of Michael Jackson
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3326c611f541a9c937952cba3cffc5e06b2949e4dd841a25ab4d8990d35e426. 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/USHNR1021502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5473ff8060bd41271a32c713fc7d82de0e616a276870611a98efde5ba48dc3a. 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/USHNR1021507.
Finger Poppin' - Celebrating the Music of Horace Silver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8471ecf8e461f56bb3ef1007cb467dc6bd4607f26bbe0f5452751483378af0. 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/USC4R0301241.
The Philadelphia Connection (A Tribute to Don Patterson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4f1524d987300be640fa35ba53d2bd0980c6eb963822a270b43c12e7779001. 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/USC4R0300457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8daa64129341dd133842c6736e366558fac295e2bd4a6d11df6828e242176a. 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/USC4R0303600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6a81e9edb01aa7022e4968f7c76ce761bc0abccb118b59e0c62cde90814f4e. 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/USC4R0301842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c05a5da9984c995912a69b1fca2de75165673e90986ac289b31997df6c3e8f1. 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/USC4R0301513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3b91b54ffcbc66e3af702dc36d3c0c230a33ec37e8d80c885dce1814a5eb25. 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/USC4R0301514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ed42d0130dc40a9cc830678cf8e1b34aacc87a16405f42934dee72f6a199c5. 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/USC4R0301516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93353baccaf3b2f8aa703420ca04a3f26aede50608fa9c1448261c7a1c01c6fe. 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/USC4R0301517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df8fba557a1b778fe310546bcf8dcd2b4d2ca7506238dbf6f76e5bf760d8642. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:06:56Z), 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/USC4R0301518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b76fcd019a26f295f90e72a375135d453d86b69b456d7b309fd1666f40863f1. 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/USC4R0301520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc520d6bb09d2a2faeb978330ec30f03b73af74cfc5a599358f10c97613e10c. 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/USC4R0301522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f34ada98ff73a4f66f002bf307d23f6bfc7581a65d84e6e849e222b6b14bf0. 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/FRZ029404090.
Sing Me Softly Of The Blues - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c860cad0178a237a8844f8b6dcd9600d37183be23b48ba0e7999c47979d808. 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/FRZ029404100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f7885698feea65d1a8bcb9488f3caa411ff1bd033d007594af758d9b2422f0. 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/FRZ029404110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b27ccd4a15efa7cdb5db7ba53207a7677373b5c9873280250403e84bdead28. 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/FRZ029404120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8cafa3d52ede725090d778e28e566db3275f5046fb53164003594655f8fa92. 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/FRZ029404130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fba73440c6cd051482213a036595fdf1793323b8eef5dca8c902a29417577c0. 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/FRZ029404150.