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 0x89a00dd3b77bbe02cd0986e903129f159573f2f064a7d3e5aef8d79176747bec. 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/74d66ef3-edee-4ac8-84ed-cff5bf02e740.json and https://artists.proofprofile.net/proofs/artist/74d66ef3-edee-4ac8-84ed-cff5bf02e740.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 0x87da081f8ae4272314aae0ab65df2d6d8ebbd459d49117f30f0c632fe4f0268f. 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/USMO16582901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318add1274a04dbdb4dfa01ebc66cf9eba4090fe341db2266e16e39659f68837. 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/USMO16500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3cad26a23b1f334ed320021ac81f323d515e5744fcfaf998a9eb4284f3a69a. 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/USMO16500348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274a73077336285cd736e5f24b077d63f41ddf8160f56ec42b2853dfbffba8c5. 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/USMO16500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ee935b8b2daece243fac30bb3f99badc00ae23a52204f745182a1b1022d9bd. 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/USMO16684692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744f5847f689ca007c4f9ddf711e5b84f60e1c3217165e61c7b36361a32eff8b. 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/USMO16684691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf97744630094435954cfd6a602117a753b91a9e127b56cfe3f6b6ff211a64f1. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USMO10200261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5398228d46d4a6574c993241433a26288491335cc8eee0c4890ff1353f6bb0. 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/USMO10200262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde8db834a30c07346e6e08c0f93276c235b9a9667150668f870f1ef365145c7. 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/USMO16300004.
Gotta Hold On To This Feeling / What Does It Take To Win Your Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66cd39bb2d660e5ebf6bae339dbdcc5827bbe6fb8e94635d5a04a0a3ea3f46f. 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/USMO17084671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f36417459dcaa7f7e85140b514482b071560651652a5a17531c2138018ccb93. 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/USUM70614666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816d27480fd0659e776b396cd171938e895f815a839b2ebee178ca9f1b16c927. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:12:12Z), 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/USUM70851848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6413601b97bfb59007586a5e0742d1a29769aacfb10554af91ce12a6f94bffd. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USMO10201037.
Motown Legends: What Does It Take (To Win Your Love)?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ab987b2ca30036f45e7bd341dc885a231008863e88191e95a3cd121ab44076. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/USUM70853253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80865d02d52b15c5348227e86a80e3872b427f2e69815586a35d9608fc7dd2e3. 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/USMO16900390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e354c558b286ba32147bafd2a31876cb9469ce20848c6c375b51da4fdf087e. 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/USMO16900391.
The Ultimate Collection: Junior Walker And The All Starts
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5061d1954727f2b892732e3f62199808f8edcccefc83d05c573b02282c25715b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USMO16500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23001d8059cde8d0d3a60c635d123294b0cdd46db331342da6ba5cbccf2e051c. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USMO16482899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982c38254d439677c7972b78d50a1cc71187a028c94b85a29cb7c0b1122b9a87. 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/USMO16984698.
20th Century Masters: The Millennium Collection: Best of Jr. Walker & The All Stars
20th Century Masters: The Millennium Collection: Best of Junior Walker And The All Stars
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ee935b8b2daece243fac30bb3f99badc00ae23a52204f745182a1b1022d9bd. 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/USMO16684692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4c22566dc21e6220652b06ca04f86e6cae4941f7ce6fd104057870baf7e9b3. 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/USMO16884699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982c38254d439677c7972b78d50a1cc71187a028c94b85a29cb7c0b1122b9a87. 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/USMO16984698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bf0265d571f77c8213e7f1668c7049a2639bfaebb1a8e069cb80ec11af7763. 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/USMO16984699.
Take Me Girl, I'm Ready - Stereo Promo Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc965f4eda1767cae8b8e8ef7d1bf75db0576856e70b12f1564a29444901bb0ee. 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/USUM70604154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d2f0e156108cee222d8e082d1e175533305d7a9bfac083b1cfcdc53e998863. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/USUM70604155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563e672b19e3df0e80c810351bbe007d83ad92f6ef1715297e17b4ba92ee42c2. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USMO17100032.
Walk In The Night - The Motown 70s Studio Albums
Hitsville USA - The Motown Singles Collection 1959-1971
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5061d1954727f2b892732e3f62199808f8edcccefc83d05c573b02282c25715b. 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/USMO16500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274a73077336285cd736e5f24b077d63f41ddf8160f56ec42b2853dfbffba8c5. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/USMO16500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274a73077336285cd736e5f24b077d63f41ddf8160f56ec42b2853dfbffba8c5. 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/USMO16500012.
The Complete Motown Singles, Vol. 5: 1965
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5061d1954727f2b892732e3f62199808f8edcccefc83d05c573b02282c25715b. 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/USMO16500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318add1274a04dbdb4dfa01ebc66cf9eba4090fe341db2266e16e39659f68837. 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/USMO16500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563e672b19e3df0e80c810351bbe007d83ad92f6ef1715297e17b4ba92ee42c2. 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/USMO17100032.
Hitsville: The Making Of Motown (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5061d1954727f2b892732e3f62199808f8edcccefc83d05c573b02282c25715b. 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/USMO16500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274a73077336285cd736e5f24b077d63f41ddf8160f56ec42b2853dfbffba8c5. 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/USMO16500012.
The Complete Motown Singles Vol. 7: 1967
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ee935b8b2daece243fac30bb3f99badc00ae23a52204f745182a1b1022d9bd. 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/USMO16684692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7661f9271ee079a0ec3616c40acd2df38909408b0d03ce91c4555b4e43cfd8fe. 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/USMO16682886.
The Complete Motown Singles Vol. 10: 1970
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bf0265d571f77c8213e7f1668c7049a2639bfaebb1a8e069cb80ec11af7763. 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/USMO16984699.