Edward Ray Cochran ( ; October 3, 1938 – April 17, 1960) was an American rock and roll musician. His songs, such as "Twenty Flight Rock", "Summertime Blues", "C'mon Everybody" and "Somethin' Else", ca
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 0xa1905ba0616c9d0e41317230486aa1f2ead7309e9e06ba3cf367ea0d2ff97985. 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/cd90b8d5-bb62-44c7-9c11-74c1f0e8bc62.json and https://artists.proofprofile.net/proofs/artist/cd90b8d5-bb62-44c7-9c11-74c1f0e8bc62.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 0xd7c654a19909dd4438ab4e30baa945df689b5dbde47fe924f6feed9f6a56a968. 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/USEM39600918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50339fdfd9e0da86127f317d8472fe24ec4c0c04d445b97b811843bf4823acc1. 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/USCA20701814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d38af951bce9e80a8b39f5378a9f4d25c0982435089fc6f893e78d15366a63. 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/USEM39600917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dd32356c091dc67a53766a69db071c77b527ef053e7bf777a62935ec38e3ef. 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/USEM35700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d79220c793f551d6897b0604924341c8bfa5435916e44ffaacb242e9d1ebe9. 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/USEM38900237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af6ab4893269d3a3a1504cf00e0719500f2a9b62f86adcee14a82b4ed08ee52. 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/USEM38800214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322af0b94889bd634805ecd6a4f8bb06b045130d0a175461527d2b730a703d58. 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/USCA26400143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac72a02b60dc87a7045a72b82c28e7cb8863282ecf0b089f7afb7173f175fec0. 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/USEM38800220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fe9f0aa8d603fc2a43ea97d2d5690d7b2f486cbc643f58563e42cc88eee74e. 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/USEM30100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3e564cb162e2fa6005c15b6ba468b28f579a84b735d92a8300372533afa83b. 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/USEM30100084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960544cbdb664ce2b3715f2d4b888101562f8b7643f75a814228c5970851a5a9. 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/USEM38800218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f5594f122b6af7dc28f0b23e90ebb027514d9758bf27e2e3f47ace667e0074. 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/USEM38800219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4367e9e770bad76e106bcbfe82b25c6c5c3a8575049306df7acc52e9a9a49c. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:48:50Z), 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/DEU471815266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ac7ec48cd5768ceb923d4a7a91eb0e4daf9b9cc7e5647d28da7ae8fbe76f73. 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/DEU471815013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ada04922b761efbf55c0584e709b64aad75a43122387c4b19fdfbde4e588434. 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/DEU471815017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c574ddd02ebec3dfbd03cc4f078c5aa875822c9029895d11c034b65551b8163. 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/DEU471815174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7f9d31a6b6cc051be9bd36d9350810ff43e3e2d2621535550bf39f4142f2f6. 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/DEU471815358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef25ae37d8f69d4ed8dccd82efec76c5c97c535e3bf38a35d7627f4187eae11. 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/FRZ811301023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833ce2864858c065bfb2eaf9e4387fade83982ff672b564bca4c152c22e0e5e5. 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/FRZ811301028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb6c50526beecd60509820ccd73d3942d5eba08f04bb3e57f96a81db6ffd92d. 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/FRZ811301032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ab7041b292d05307d8333bfc12d675f7fe964e6fc0fb49e3f2edf29a5459e2. 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/FRZ335524150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ae67cf32077d5de1ac51876a70371c71dd31a16ad7be9545b77ed077392a15. 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/USUM72000313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d232fae4786d552a3e5498c192975d8ae389d313b013998cfdabeab4f323cb4. 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/USUM72000342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07af7e0ab8bfed45ac58f27684e647d0ec8f67e00c14ddf87ddf990bbf439a51. 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/USEM36000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecc7edaaee566628e7b45264bcd78ee628c962a623d741b9e09402629c811f0. 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/USEM36000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c654a19909dd4438ab4e30baa945df689b5dbde47fe924f6feed9f6a56a968. 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/USEM39600918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b104edb34cd1c8d69faeefa25451448c49b2ca4ba690fec67bbabda1089323. 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/USEM39100484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0f58174bf61d308e17a5be89ce55b543d9c99c4788ce07db93601bc0ee6014. 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/USEM39300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d5f902ec75c9ab6af1f0ee14e5c4e9782465572e768e3f7a18406f4f8864fe. 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/USEM39300162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b134350b83af0327aa370e0965e7522a415c6b4f20d6e9a193e8c43f0ae1de6. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USCA20806254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136da3744d4b04f22542d7a2508288e82f2deec464f5e1bbf67f0739677a9796. 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/USEM39100482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546fde51b4e45249355bb8d8e4f26eef0a451671b6bc40413d7c7aa58bba5e68. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USEM38700130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1d272c367a7d3768873299a8e1fd70d044424d93368c19a6dd5e5608f3abb8. 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/USEM38700131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf599e2b87e255873e6cacc7e89b714f46b6dfdfdbf6df5d67ecb51ccdd9d591c. 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/USEM38800244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac72a02b60dc87a7045a72b82c28e7cb8863282ecf0b089f7afb7173f175fec0. 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/USEM38800220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89874aaf88a78092f696f07206d5f02451f8fdb1003d0b2f47c5e5a06a763227. 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/USCA20703283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6698c98d09bed12f419e51087514354e192852951d8c08c5001d7173e9c41665. 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/USEM39300108.