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 0x8c3ff046004ed0cad985c3ee8c0bca97c6262b4e22bcfc02a51c3b6ec120b019. 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/34053d14-8235-499f-8299-a197636bc503.json and https://artists.proofprofile.net/proofs/artist/34053d14-8235-499f-8299-a197636bc503.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 0x3f4f6f34fc378c60f4ece4d28d180c8636b1347d566b590afc75cfdea91e3d52. 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/QZK6N1910170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403876110fdd3a7433516d1139c6b1899a9c0c17011b259e267ae3a50b58852b. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:05:33Z), 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/USDHM2003964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae16da8ae572d9b06aca6019c48783cb5b989c9e493282860b1e23b43eacf643. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:41:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDHM2022280.
A Trucker's Blues, Vol. 2 (Country Boy Noise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd907b4e9c650eb7dd840099bc742cfb70bfd9ff624133c8e44cbf52e75863b92. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US6YC2103149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89dcd8da2fab58d3f03127b2bcd3ebd735ca523ca2c2787cae057b4ba4d5d0d3. 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/US6YC2103153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca206bbd55f278e3248b4de4aecfbe42d47ecc17d782721035e5f1681be9eba3. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6YC2103154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0adb9ab23c1e2837350575c311f619a0051a5b6ad69decb2ac9b33567f723a9. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:42:42Z), 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/TCAGB2211563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab79476dc8172fe8a1c7d4bc59c4b596cc6a108046d56b79041939687a7ea0f. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZFZ72254020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c7690bd560f7724b52ee968d071ccffe2032d9c8e0707040e29dfcb449e8d8. 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/QZFZ72254022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51c57a36c7fca24d875bc34623a8d4d2d7a856cf5be7a8ad971d5d038b56968. 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/TCAGC2228193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cab8834bdf5040af4c1bdbb9de8d5c7277375f6772642156dc1b417464f19fc. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAGJ2282446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fa2fb0fb86bc52f499c85d7eae01c8a6a33aea56a19e9d2494833b6206fb69. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:42:16Z), 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/TCAGJ2282460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d5a5e9a9d57e5cd19e9a55c6b20270f522b0b49c9a93732a7e0fde9c5aa842. 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/TCAGJ2282480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b4e2e12579c936027115ea042be7699da7e3694c55c829ff170013917ab56f. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCAGJ2282504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4061e5efbbfa9b239528ebbca5505a154804a40222bf46c8ebae3553dabf11c1. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZHN42342081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfaf61a9977f4caa0a04a80e7a7da430b37bca0b66f61e5f07cf289260fad72. 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/QZHN82345379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6e407677b42465f3cb9519a585d7d05daae4376fc704fa3196514e2af4e82a. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:58:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN42343134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1578180971abc6717750ea6f1106f99aa8c55ff6b157bb6a4696c413980733. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:07:07Z), 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/QZK6G2395092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbb5c7e74fabc6b1c99a723b778535dcdb64fae95e9d31164594bc51fb25c6e. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QZNWY2331961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585dbdcb5499db741d797edd0daa400c02681ea2eeb64deb2b4272acf509a29f. 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/QZNWY2331964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6e407677b42465f3cb9519a585d7d05daae4376fc704fa3196514e2af4e82a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:55:56Z), 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/QZHN42343134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de0e25ae5658cabbb2aa199072221a14eb134194ee13f24152501db5562fdc5. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:35:10Z), 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/QZNWY2331967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4444734c016f98b869703d13df5b4d711274c52c7d8839d5bdc9b6b7ceb11211. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZTAY2337641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8d1ac85eb261ab7288e4789fce287614c7650b63134250f319a8210e9edb43. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZWFF2357949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5ded0abb1c9ee396564297b26efcd47aa6b4cf00455e39465f90634e094f6f. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/QZDA82493037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1595b61e498aac75a2f8e1a6c2aef5432d0f3a299b6698fc7fa41af6c8f50c4. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:09:55Z), 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/US6YC2405216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674dddff992298da6ad51896133abde3dc3a8c32b7281d5fbd708eb13d8fd92c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZK6N2453509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2147ccd88e2fd6bc139ca1ad9fedeaeff9ccdf3460362d34b68e978f7c620d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:53:51Z), 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/QZMER2476466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4925b523791d8f9177e55122b59c6aa8ad2a284163976a74d352685b36867a5d. 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/QZNWZ2460243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076c8ffc9a24440cd195b8a4a277846a6f0b6d718b24ca87fece8734c32142c9. 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/QZNWZ2460245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6877d7cad112b612b95e98d1ead692d4043a25ff1935ce68fec05a1da97a255. 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/QZWFE2409565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647d783b91a0dae8bfed8c334e5f1e78ca6ac2cf5ed87b2c5306fc7d672ca495. 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/QZWFJ2455379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f8401bcbbf767a7d654dea7d0b465015c5cf2622e3bdbcba10755b88b44650. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZZ7Q2456059.
They Not Like Us (Country Folks Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb232563466435880a7127c04fcbf3adbf37da9c8c5c3022e5f1bf9792189e311. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZMEM2592305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37df6e3b43f8f29df7821e60e476da229f473089e423e792bab38c01e10e260c. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/QZZ782571765.