LaVerne Butler is an American jazz singer. Butler was born in Shreveport, Louisiana, the daughter of saxophonist Scott Butler, and was exposed to jazz and rhythm and blues music. She attended the Uni
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 0xab0468eb994b121f0fd864fe6b54ecc379ebe8e3006f607598ccd791c2671200. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80fe59d2-4958-4a58-a78e-2bcee0588a4c.json and https://artists.proofprofile.net/proofs/artist/80fe59d2-4958-4a58-a78e-2bcee0588a4c.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 0xecd4b6dbad2f87bb107e467421874bdd28d056c155daabacfe2ccc684a41f83b. 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/USHNR1223903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e93b872b96bd5e733c217757c3560edc1e4641c8c1a6b3037cbc974590b686. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHNR1223904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f72b3fc5aa52c3f87410565a80415015e00a94741c7be300c2ddea46e929cb2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHNR1223906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc776c680fe9eb04960d2bf3bc1deb9a5d63296ef7ed6d5399a07cf394e5c8a. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/USHNR1223910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f26931f8a6c91fb5b927c38cdbfb9dfb7ddbdead59484aecd0a58beda90709d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHNR1223911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3343fc5c54bf9c0b05871f879271b6c732696b310b91e522221d8bdf01f1f0bf. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USHNR1223901.
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 0x0d422cfb1210d7e9a055c420a100f9842a04efe12e5153270af8f4c5f09f8b98. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USHNR1223902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b48c982dea0c06f6c23eff53849104c6d76e1eb0a9130e0d126f198da5d3f26. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USHNR1223905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d4bbcff84371240ba6dcc8fc18c62b485e40c2f139a15a5026e595649c9b26. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USHNR1223907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a8e8cc9938b052bd5a070fa79449c36895c4d3fb25a598518fddef1676fbfd. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USHNR1223908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833c49ea65388d7cca8f98f6075fc5dcb9b4b64739db950ffae875130c0c3833. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USHNR1223909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb96ff4b9f63333ddbb61a3a8317c36aba9f42b53810bc49594c7f390d0f5e5c. 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/US4A70400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4b4e3b0e1bd8b1f5701565e262021e69f4836d6925bf67e964741622dc75bc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US4A70400147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2aad40559b2e30696e5fe460ae1ec7457c21fe7418c81dd4710cea18cd9bf15. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US4A70400148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cab14346bffd4bac09d9c3d05af478f03a2c426f843f04fa56ef953dd0827b5. 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/US4A70400149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0ace831895b7ffad64a63528389d53923fe98edad0462265d98c863d5f6e82. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US4A70400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c94f60c60666fef36be836be178a3dc28f13a10cd9d9207a0b0c9d9df42e02. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US4A70400152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fc264b2cb84fe543a1816f9c3ded5ce0a840476562eb9eef61a8a30df25dc7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US4A70400153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a091ddb8b0aa87871927df076726e7dac8651d48a7868637b66a9631673f9e. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/US4A70400154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef13aa348880b06fb88a7e9ffdf4ca7d3179ef80e6b18d5533d92e82c656a939. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/US4A70400155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067bdc8586d2636ef5ebdf7bed4fb37ef8971c151c37a271fd2933540a6a035a. 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/US4A70400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7a392cc85cc223eea4b311e530bff973d30f633015ccd64c8bad55ddcf9fb7. 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/US4A70400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fd1cfc0cec4d18d5d7cee46e96d38ce1e55f779129ec427cbc6153ccf5a2ad. 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/US4A70400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6aac57daae7b168fc9a94edad9c4e03985a532473f694d339ab5d47c6cb0d1. 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/US4A70400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70b79fcaa496f71eb135314bfd382a8e7209b1c291e4da68c4ccffefaf3d213. 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/US4A70400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699a9f257ee502280581be59f2a5df80ac41a6029e33bb020c627c935d9c650d. 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/US4A70400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941438914b956cc3263e5424dc9b6eb60e3d49347da75d719c795f59fb438538. 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/US4A70400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2e247b96cfafca15f949e9965735076c79b2890d835ea84c639c2fd3ef6768. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US4A70400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7323a9a6630ea52a093977bd0a6737a21f5e995084ad75b4cc0d1903f8e66f0f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US4A70400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e93f54558c349a589293d96134628aa9c35f849081010b9ecb6d606ac9bc0d9. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/US4A70400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89bc6b82d69259997a150bd2fbf7dbdb6b78d32469d4197c69d7cfe878c0248. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/US4A70400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993619dafaa259ae716c353341990e8406498e9e66a3c61cf0e962966f575c37. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US4A70400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb744880c6b2558af35a48559a59ac132c490cda91e71f8ce82b1318b7d82c965. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/US4A70400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9901955930b7a9ae41e63c590023f423fbe9b3d4b27c8a7a46174d6759e9dbc. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/US4A70400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48adfff04d9c34f0e21ae1b9d2a1b299842a8f6641689eaf25de0417cefef757. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USL4Q1751744.
The World's Greatest Audiophile Vocal Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d0b24053f808d22dc2fcab082495ed91f7cc6751cbb7356758e086117db5bd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US99C2046302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fc5c2e052068a00bc3576c4b33e7e7ae3d5243071a27c0bbd6020adbe48581. 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/US99C2046305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af4565d0761dc0e667b336f0e4702c477cd2eab7a59c7a6e0ca468a1580d8c4. 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/US99C2046306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125547a18089581e1557dfb09707d9b56fb7f900f35b65830f81f2cb028c310a. 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/US4A70400195.