Joseph Leslie Sample (February 1, 1939 – September 12, 2014) was an American jazz keyboardist and composer. He was one of the founding members of The Jazz Crusaders in 1960, whose name was shortened t
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 0xfab9fb4a22ac2672a2909c7ee414c0b6ae6371db2737a7490128ebca41a1d787. 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/b0a7e083-c874-4b6a-9894-28998edf996a.json and https://artists.proofprofile.net/proofs/artist/b0a7e083-c874-4b6a-9894-28998edf996a.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 0x003514a469079595879c3ce8db24b56a947e2c61044cc540196b33dd68ccb253. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USMC10110542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2fa2af0c10b82079c1e67f88194a842a5df5f3b8360093de48872877fa7b2bc. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USMC10110541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf468b65a669f0089d1a5267d6e070e63e6423c27655a70c9dfb6c26f5064756f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USMC10110540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7007afaf2a6f2a89eb58aeb7cad6f49b369eaf44a08ea7b42126be34b0ba38. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USMC10110551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2496474bbb1f9b892aaa51813b689447f759993c2e6b882a4bcd9056951357. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/USMC17811789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b7c1f6ab1555386b067965c55888202e4309f5650b49a98e4e34cae9377f65. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USMC17811790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8751728c0c39851663b8095f1b53db4d7a269f50a38dc665c35d360d08345561. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USMC17811793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7612f56db996057c0c8bddcb09b9e68cbfcfd4c0e871ef11060e8544ca5bf3d5. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/USMC17811794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcc308ea8e24a24bb8d824adadec6232a069a3f83fc810d0f798a1bf543cc13. 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/USUM70833802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2817c41317ba8d639199e8d3b248176ce9a1cebd48cadf38c375c385cb1806. 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/USUM70833804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dabf90925c340313265730cf50342643b48d5dc768091d701d733629fad5338. 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/USUM70833805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071194a025f2afc97084c9d8e5b381e6fc4f3d221e4e8e8bf094893def18094f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USMC18110694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7639e9092403c8548a82bc28594fbe528fcddc7a6b03e956c3799d7cd66e049b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:32:50Z), 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/USMC18110695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423f9b28e45e6d93007517a908d9266eec623052f3e8fbb32b3b93a92b5720be. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/USMC18213198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e6bcb565ddce5700b57e5f9cc9221a863616b7b6466a19fc0880117e0c4a53. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:25:29Z), 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/USWB10000262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1989b3d6919443b2fac16efe3e850dded7060b9006f6b3f81576f6be10453d3b. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USWB10000264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29608d17a252c9dc2849e49c4c308cd3e1039a63ae15d513f59a08c734f22dc0. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USWB10000265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f373795dc621681850c8cdde75c193ef0086e33903d7ca97749cbd572ca09c. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USWB10000267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0defeeef9a7b9d98aa25238343bef7f27979e7ad03ccbd0bad7b424d78e2984. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:58:30Z), 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/USWB19904107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea6a671e7fbf5159e29d39e4abf63c575ee45898befaf2bf29e166fd5293ecf. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USWB19904108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c55cffc0ea1dd1c11321ddc8e628aee606522fde1241826bb775921c46c2a82. 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/USWB19904109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855b69170a78d9db8615a2b1cf90becd653268b36f6a40483370fc8958356a8e. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:09:42Z), 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/USWB19904110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65900f1403d0bedf5f66b9a8ad325c7ac1cf5e9fe6525c966532a80f7b4ac77d. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/USWB19904111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cd6f9bc51a1985f1551034c6887badb780067f459a1396a1d63afbbed16fbe. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/USWB10101970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94554b48b3ba97e2a25894153c58e40fd01568017737ca4062fc9e77ac9415a0. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USWB10101971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1229ff4783ab8a2e3839a819141b18704c1aa8ba92f9e1f93a654010906fb6b4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USWB10101977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11afd673fd1e0da5c876cf2a3cbe27a04b05c6c67a74b0d13d746bb5650560c0. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/USWB10101972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c938f972f49057759237422a96990381dcd61caa660523004af5b86da9128a. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/USWB19300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43454aad1cd7f0b85b46b449c54d1b014dca822e1b81cac0a6f59af293ac8576. 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/USWB10101973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706849c53059b96f0438b086d58f8278536eeec134ba1865ff9a56ca671f1475. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USWB10101975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65f3ef63d72e6ccb2fa41666cb2509237ae616fa78fd36cf900efa3994fb9c8. 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/USWB19400287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3a2b601acf6716dd8f1860224362a77e39037340d56b11269d4ef0b26353e7. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/USWB10104223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2ef14034d22460dc01017f4239bc51a42d1b3d9e362c5d5a765366a4fefa99. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USWB10104224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd131d49e2fc3a7f99ce4117bd26df3556b99db32ec375c7c2a1d430f916186. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USWB10104228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab1a8696a7dd0a368480c226163872e360903dfe1c8aec7599506642c4a63d7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USWB19500045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffc7b9e0e9ec8ff078496cf4275f9a43b86b0af77b90e635ad6322796d4e5c9. 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/USWB19500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace9740b38c9ac5cbcaac218f79de3b68f9c88042973cf6264d691535c729460. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USWB19500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc59662cfbaac8c080043fa4b97ef2605c67bcd8f2eaac31fb72f583da31476. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USWB19700648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fae199832861eb44601472d0220c7f0325703d79f9aef0135c934018e5fb42. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USWB19700650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ea6defb8a09ae6f07ee8f019f17f49b47aea8568aa1209dd5ecb0e1046290f. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USWB19700655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcb84c91adf22630a772b9d782884acafd8908d19668e0f3704f1b007fa6874. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USWB19700656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4743926597d293c9afad6af088bb296c9e8ce32fab71aeb7c265adb78d294853. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USWB19700657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f76e919eaed1e41e0bb3f1db4157fff300eb86cd4012ceceb9fe7b8b60fc874. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:43:11Z), 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/USWB19700658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa65f83ff3ad0ca55b0e5826123a7db8bee23c22f75727746d11be1296f6cc8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USWB19700659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd535deee1bb1024f6c6c40e977ed7906e3e1479804b93d6b3067cbce67cf2c32. 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/USWB19700660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53459b2e0cb0ec1dfdb62e88e84f9c6edd463d5ffd09734b1ce99c8dc32b7ce7. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:09:06Z), 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/USWB19700661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c161b84956a6836ee5dbb145ebec3c9deccc78e0b6f648c508dbc79dce7ebd4. 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/USWB19400286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0739ef562eaaad1ab47b00d6848df11f49d1abb8786b4e056f8977b50e634e. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USWB19700652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe730448c283581920c1a891623a0edf1451de499f20529ea94c7cc2d52d3d87e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USWB19000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65f3ef63d72e6ccb2fa41666cb2509237ae616fa78fd36cf900efa3994fb9c8. 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/USWB19400287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c938f972f49057759237422a96990381dcd61caa660523004af5b86da9128a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USWB19300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffc7b9e0e9ec8ff078496cf4275f9a43b86b0af77b90e635ad6322796d4e5c9. 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/USWB19500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f76e919eaed1e41e0bb3f1db4157fff300eb86cd4012ceceb9fe7b8b60fc874. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/USWB19700658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfa8a50d35e2f99133ddcee8b22462d426a2307445e6543fd8db0201a2e432c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USPRA9900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530f3fd9334c078b88c95f58df6d7e9ec26d46030fcd142dfc3f6731451b5ed2. 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/USPRA9900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0f9425f29fc73efb577a0372a9aa9c204f49d4c67c0721f9014957372eec13. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/USPRA9900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8edfa3291fd73a493d8200333fa099a590cc9503c246160f5bfbb272151cfea. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/USPRA9900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676def86fb75867488853242ff33ebf0fc94957e140d598e89ec078b5b8032b4. 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/USPRA9900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d51d4ea30a26c9f571d07197f4c7b19e67b29d39701ac13ebd267ee83fdb4e6. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:15:50Z), 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/USPRA0200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1d0c5413b257459809a82ea6328604c65db75218512f1eb3d3cabec6d15143. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USPRA0200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a47a76260526054ccba4283b78b1617c94ad435ae92540e13e9def8eaceebd6. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USPRA0200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb61b2c01ad0958ede12e8802c4bb4c22cd7232a6637c34039098bcb3a8dc75. 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/QZFSW2200002.
One Day I'll Fly Away (arr. N. Raine and J. Sample for orchestra) (Moulin Rouge)
Film Music - Williams, J. / Barry, J. / Bacharach, B. / Nyman, M. / Lloyd Webber, A. / Armstrong, C. (Film Harmonic) (Royal Philharmonic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342a4ef49ebfc7c93fc4b22cf839df9816254d12538afaf4b82fe2169e1dffb1. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBGRH1100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ec950ef7103b8298d09df4af67987f9fb2a082e1e545f9c856635cfb410564. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLL6R1602439.
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