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 0xca58ee7ec196ed74abd8b363210efd4507ff090398b544f5ad1545d93097d9be. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9284e348-3835-4533-a08a-7acaa8e87274.json and https://artists.proofprofile.net/proofs/artist/9284e348-3835-4533-a08a-7acaa8e87274.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 0xe6f4ec2924aab4c69b93231ffed51023fe0e8496e1b8b723ac7cb3ec29f925fb. 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/USM360800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72429765ebeedc4fca2fdac9bec40948c7516c15b2716fdef72c73bb90052455. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:19:44Z), 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/USM360800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd563ba531d363182309ae7fd3158bf8635d8b251106de59685a5715c3de246. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/USM360800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd04f174c51c5a7f59a839a862a9bda77fc1063650f4c84e30b7310837820c03. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:46:51Z), 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/USM360800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8ec6060b317043deddd912e04bac85118ff032a174563efcb90cd6c5fe38b6. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:59:19Z), 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/USM360800015.
Pure (feat. Will Lee, Steve Gadd, Bernard Purdie & Steve Jordan)
Kyoto (feat. Steve Jordan, Will Lee, Steve Gadd & Bernard Purdie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59de080c558e65bd02b4c8dea20173c1a398c120f211cc6531c519ee284d7532. 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/USM361000001.
Boy Back Home (feat. Will Lee, Steve Gadd, Steve Jordan & Bernard Purdie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bd65e5e3b64f965877db0c7fc42ca3c17aed47a3ce29ea8e3f5865561e1bd4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USM361000002.
The Good Life (feat. Bernard Purdie, Will Lee, Steve Gadd & Steve Jordan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bb26931b57552babc607ec9352d3dbd1203a8802bc0c2947a03fd989516f6a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USM361000007.
That Girl (feat. Will Lee, Steve Gadd, Steve Jordan & Bernard Purdie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd389b5f52d278d4e2c16b7671091858495e5b3bd64d22a38eb6d3ebc7bdae5ef. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USM361000003.
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
Crossing (feat. Will Lee, Steve Gadd, Steve Jordan & Bernard Purdie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5b1e16bf8bb14babe0184622a86fe0883c38f7a94602ad9d75bc7970d6c8fd. 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/USM361000004.
Tiny Tapper (feat. Bernard Purdie, Will Lee, Steve Gadd & Steve Jordan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49844a2a2f2ae984ce014fb232b414758885d7467a50a185b3172b9b7f8b6288. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USM361000005.
Midnight Walk (feat. Bernard Purdie, Will Lee, Steve Gadd & Steve Jordan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0f71b3581eabe51fb20d6ba12a748c36c84df3e58a83f61915158df622f73a. 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/USM361000006.
Driving in Texas (feat. Steve Gadd, Steve Jordan, Bernard Purdie & Will Lee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43026622386dc24843b92c9f3dfb6d3a2d5dd49e6e22d17f98d5409afb8fd968. 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/USM361000008.
Through the Pain (feat. Will Lee, Bernard Purdie, Steve Gadd & Steve Jordan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19941a76debf7a3c453834913a03cb45308dccaf4c6c18851ab668ea753caa1b. 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/USM361000009.
Just Funky (feat. Travis Carlton & Lemar Carter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b52be26f5ea5cd44b59e153a416964d5e14a6f4b975db10d5048ad6b7f852c7. 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/USM361900001.
People Get Ready (feat. Travis Carlton, James Gadson & Luke Miller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdf2b267a524ac1723bc2be484f829ca3bfb16da6bf4ba090f7024ef5c5bdef. 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/USM361900002.
Coral Sky (feat. Travis Carlton, Lemar Carter & Luke Miller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6f01ebd9d8eccf970625fef274cb2a1991c2e84a29925e29a7bf44acef7608. 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/USM361900003.
Take Heart (feat. Josh Smith, Travis Carlton, Lemar Carter & Luke Miller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa533fba3c0a26e9832741924767fd5600a606fcf79f22eff77b809c0ea56320f. 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/USM361900007.
Sweet Boy (feat. Kirk Fletcher, Travis Carlton, James Gadson & Luke Miller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f74fe6495bd1d4e3107e188ea8b3f44106bbe8bdf304f06073246b2f9a95d88. 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/USM361900009.
Late Night Whisky (feat. Josh Smith, Travis Carlton, Lemar Carter & Luke Miller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4712aca400060d0dbb3f641982a7cc0e7a56aede68ff7ed76bb4928551da9e83. 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/USM361900004.
Gadson Shuffle (feat. Kirk Fletcher, Travis Carlton & James Gadson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd34c942a1f1c060d478c982ec37e2cd24b055e4972537d9013fa48496b6c98. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USM361900005.
Kindness (feat. Kirk Fletcher, Travis Carlton & James Gadson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50181366a2ce13bc09f270842cca4db4a950b7f15114d759bb2585d5331bedec. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USM361900006.
Groove Like Honey (feat. Travis Carlton, James Gadson & Luke Miller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd388f367513d687283649360a79191ac7d4bbcfd7c2b5d4cc1c3284a28ed3f6d. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USM361900008.
Misinformation (feat. Travis Carlton, Lemar Carter & Luke Miller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5943c18d515141e4f751c9afa61dcc437188eed43ac204d08c556fb810e465. 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/USM361900010.
24 Hours a Day (feat. Josh Smith, Travis Carlton, Lemar Carter & Luke Miller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ac6eb064dc1b9c461ee42ec47c71dc6510218d5f1014be055271d9d6507775. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USM361900011.