David Le Chaine Hollister (born August 17, 1968) is an American singer from Chicago, Illinois who found fame during the 1990s as one quarter of the R&B group Blackstreet, before going on to have a sol
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 0x10dd365ba2c9e138d5597fcbabf8e32d2d1f963a5b82c1a635486fb082351034. 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/bd9d8916-5b51-4103-81b0-2f0b0ec091b9.json and https://artists.proofprofile.net/proofs/artist/bd9d8916-5b51-4103-81b0-2f0b0ec091b9.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 0x3c376abd48fa6cfa09e51cbcbb16772d20c239ab4c74916ace95ae042d1cbd6b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:28:26Z), 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/USDW19804707.
Baby Mama Drama/It's Alright (Bonus Hymn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6f8fd84a7b9e71679664d9239f7bc224a8cd3db3ca8c6cea8fe9b2fc57bd43. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USDW19904726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf53fef69746ad6e8157adc9c28cc83d1e8359392229e8db1b3fe3c57c18738. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USDW19904727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb535df1b3c400dff5de90a20a8736bf8a5d90dc00c5c3f43bf64478b7ca2e66. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:10:33Z), 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/USDW19904729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f2061ebab283ea0b2e89e23bf8c53d7c904a80a53c5310619cd382a2fd8747. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USDW19804715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c376abd48fa6cfa09e51cbcbb16772d20c239ab4c74916ace95ae042d1cbd6b. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/USDW19804707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61462432c2a6e8828bce00c7c5d435bb6629d4e3e1da8476cf05037643e6e809. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW19904723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a964efd36e9d0099680b13f17acbf56776a396a166c6f04279cb568a45d7dfd. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/USUM70605327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828be709c4c718393f6949563fa21eab816155c6d1768ae562c6826855f6cab9. 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/USUM71108976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f209a0ea69376e083da4b3b654c94dac40ee0bc27fb58e861e4cbb858d85d4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USDW19804709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f2061ebab283ea0b2e89e23bf8c53d7c904a80a53c5310619cd382a2fd8747. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USDW19804715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ca5276aee7ffeba23830223c92e74c311840a655921274e264b5ae5ca026f2. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:35:07Z), 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/USUM70605328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9ef5a26a35ce5095756a31c8caf428afe710a0e1c54864f5c3f48c3ccb54ab. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZMEN2595557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb98c4ec27aefae9bcf7dfabe6c59638fce6b7128d43c8c492103d51f1c6b82a. 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/QZMEN2595558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab39e303c472a795f348d486eab2d17429fd58bff61204ae0ddbb0b4424d8a6. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:40:20Z), 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/QZMEN2595563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f48cf18afc3dbcebbefc0cddf9a9b2f88c9c854bfdc05551cdb748e8a5188b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZMEN2595564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716a7cc5801bdd1161113691b4b78b60a0dffc1959b0b6352b29b563df31808d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZMEN2595565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fad62694f568d328b416d7fb1856c99676ea0055a8a7dec0780b4288c71daa0. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:46:44Z), 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/QZMEN2595566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d478a796f0fc7686519b697eb512c86df1da77b8a386820cd18332452e61bb8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZMEN2595567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fc6986c7435d2c76149fbcde750ff79bc35392474aa01cee6d5ce33ba9d714. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:41:08Z), 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/QZMEN2595568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7038442f353a9ed913c8dc34e913a60a7c126f1c3c6cbebdfe81ae2730fd9336. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/QZMEN2595569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fd365fc3a4c7f9f0e8d31bd6220fc9b4cf3de890e18017a965b47dea88c234. 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/QZMEN2595571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0d1f44a318405eb0ae3cc0201a727bdb79fffb98813671ff0f8d655658ffb1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZMEN2595572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224bf39f53f6f42898bf664cde62ec21832d10e468043552455e276ebd3c2137. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZMEN2595573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbb6db36ad73d2d19db119c9c75ddbcb41c402ec476fbf9de75730499e3be1b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZMEN2595574.
Chicago '85...The Movie (Edited Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5d64ec6044288c4078dc79fbe296ac626170eb1f120a9482b0d34cb3041250. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USDW10022122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a234c5670d187fcd6d63bcab35f18e0d5352222bc14ea6ff044ea0fccabd158. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USDW10022109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a1e1682fe1e74303e90614007f60640ccbe5082c1639fb23b3b09681fa34aa. 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/USDW10022125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454ea6f7a77748e780eed6e444ba4a43679eef6e6d76b88a365d3c464c990222. 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/USDW10022127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a9e064f8c0b20e63844d1d3c99601714a19a0a67e51f2e25bf26b5624fef40. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USDW10022128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4a6144cef26d9fcf73238f7f3139c2e68754b5ed461b50ebeb018b4c172f9f. 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/USDW10022129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd524be05e7e3b8671ee884cd187c79b544960b681d90c136aabca0ad49bb8066. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USMO10200635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ce4eefa9385a8305c47b577a0b9389199d41593626d04d02351adb424d8d98. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USMO10200628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822f17dcb4faa93be974277d0b28f204f799e6c9bcf0550d07c3c9f341a608ee. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USMO10200639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25602b3a17ef55c1c46fce899f01097a451d2d320270e15e7eca04b08db8dc95. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USMO10200626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30540477a9c44987a4d5825e2964a0d8f57b6ffd5a0d549217b3d7e48332213. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:05:35Z), 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/USMO10200633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d35e87d81d0a6addd73e564d1aefc844e091656366aa247104f0aa4659eee56. 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/USMO10200632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332032485388b190b9d71683dc7171311c58044112ac4f1b65cbfe13a7c06e9e. 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/USMO10200629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107e0f8adff07373c379d35825dcc1830c7d8a709f882825380a06f57a90bb84. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/USMO10200638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9475a9a19a73494555d9a625def77600684105423109f65b4db738eebf062bf. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:42:44Z), 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/USMO10200636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd31c59f80334b50ac08c454b54bd96d0818996ac229239f4bae1e6b3e4b26c. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:31:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMO10200631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c623c9594077051c097528d72e39d5e6e407bef7acbc0abcf71bfc12afc130. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:31:09Z), 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/USDW10300541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0686a94f7fc3ffddb604a35b9ea776c4c49f7416be8e0590f08cbff994386ece. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:33:22Z), 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/USDW10300588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe901465fab84d4dd872f83ef1aac9d9a23c45ca2c999376e79e8ee5adce148b7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USDW10300590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9828abc6129fb0418955db51194861b788f813f6a3dada698350377ca3b7a97b. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/USDW10300591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136b7c058f4900e20d757acf9629c494745686bc311139c600c9c308eb418481. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USDW10300596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029697eddbd8bc4f0371503a7d159ec706b911ea4fd95ec426333f8871f81395. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USIR19400794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43fed9ce77de718869828f24608b6503394f48a75a51bde2acc7581ca38766b6. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/USIR19400796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a964efd36e9d0099680b13f17acbf56776a396a166c6f04279cb568a45d7dfd. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/USUM70605327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ca5276aee7ffeba23830223c92e74c311840a655921274e264b5ae5ca026f2. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:32:55Z), 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/USUM70605328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e10d6a545699eb4b258925f0f8e9d89005285c4aca2d21023ac1d89ec54f4b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USDW10022111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db9fb17b3e5d9f535898ce3fea723b6f99eb70e11ca8d8b9cd73cf91148c41c. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/USMO10200627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07acc400150aa102005adace9ff969472daf4205a409059c73efaa6270d68f04. 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/USMO10200634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5447c68b1106670dec6dc419f0ac1dcfa4e47c08bf734d172714415747e16f0f. 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/USMO10200625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48d9853f6c04b1985c9b2a6225807653f8e27e7012e5b961ba8f6b597834cd1. 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/USDW10300589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0aefc81085809b9e6a91a4e560a0b5ade261bbb89ced4b90fcdc0d0c88cee36. 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/USWB10000053.
The Book Of David: Vol. 1 The Transition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcbfba4df0aae0e45a94e6eb6b67d02003b4f56a0cf4d2fb69af416abe1f2c5. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:21:35Z), 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/USGCR0600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8563a424722c3e699fd01dae1786c69afaf0e545bfa2cbb8fb53895bc226f9. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:42:15Z), 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/USGCR0600058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe244c05498b0c898e76d52fbc9fac018c7318b35b4fb584fa2b34c4f56757330. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:06:33Z), 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/USGCR0600061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029697eddbd8bc4f0371503a7d159ec706b911ea4fd95ec426333f8871f81395. 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/USIR19400794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56e0c556a36873b7fbafd64631952c172184824e41a235f99e53361c9744da2. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:08:09Z), 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/USGCR0800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed13b28105ea5c0af2b64855afbc715f483b0fcecc3b910501589a1e339584b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USGCR0800041.
Gospelflava.com Presents Something On The Inside
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9052e26901ac65028a2358c767ebc3c98cf8a8b746586fca2bcb900f475eb714. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USKO11401484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0838f8f446495da2960481e45d031252931c765910ef29c9ed3ab5c146e066. 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/USKO11401490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdb99e5ba9220217e0794cf44a2dc3f4529f1f1907da179c0b2a49a69f461f5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:02:24Z), 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/USKO11401482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f90446fbf9f2a05564b0115625813b8d4a25fe7e85b24d7726cfe009f6ccc04. 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/US7SF1656163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3402022e386c9748292f303fa3c546c270d4a468ab3b111663cf45bf647abc53. 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/US7SF1656166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4b0ba7b9c81440994275f13749f4f9ab1f5cfd60b08700a28211b1ff77ff86. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7SF1656167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97916c75a7d4142c4ccc01d6659f80ddc8d09f1f9ac8e1f3ce3d0fd0e004441. 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/US7SF1656170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ee9056d4ff4c091f724d02d0fd644b0e85c6b2705345d7a43329925ea2af0b. 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/USUW32100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f77d25de2d7b722ec4c095bfbf210b46eff9a82ffaa9f16fe96686fe3011e1. 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/USWB10103651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f77d25de2d7b722ec4c095bfbf210b46eff9a82ffaa9f16fe96686fe3011e1. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USWB10103651.
Black Trash: The Autobiography of Kirk Jones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1724e59c8cd9d1806d53f28f499c3992d91a6a11b417b01c4c2fcc373a09dfbd. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/USUR10001058.
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 0xbd7e1aebf4fa2d41807c88003f16c5efc09892785e9d4b81dd0645a3cfdd2447. 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/USKO10501709.