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 0x5e42f275c0727d84a620470a5b2a4ee429c9564834372fb813ab0922574f92e6. 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/aa29d660-21a4-4a75-aa64-1d844d4544c2.json and https://artists.proofprofile.net/proofs/artist/aa29d660-21a4-4a75-aa64-1d844d4544c2.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 0x5ce03b57b985ad316ef4f05caffca001dd4f1e00cca3688f9bd81adccaab658c. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:10:40Z), 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/QZAPG1722015.
I Don't Know Where I'm Going (Radio Cut)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd588fa4435aaf6480468df2823c1e4e3f8d4493fcf64a431f19a7bd01aee15b3. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZDA41955143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c44d94ad0a74d98244758c3481890b72cb73baf88788b1927d6da053b89d4c. 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/QZHN81945813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae48b4978f2cd0bc3a018ae19b76d63acc5bf70da7a470c60315ec2f8ddb2e38. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:25:44Z), 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/QZES61814859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557da5f93a6d7dd91827527dca84cf617d6b9aff07e699ad2a75a2606ecf19c1. 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/QZDA82086864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ad6b2709db4c776017cbe45f2d5c5c3bfa949d0b7dd8a619edd86615d34ca8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZDA62134876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ad6b2709db4c776017cbe45f2d5c5c3bfa949d0b7dd8a619edd86615d34ca8. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZDA62134876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52203325ecc032f3b51f5508a3919f21f8420c4229620c9c76dc928a06d8af7. 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/QZPLS2191828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd5b4d72af6f1639c4168129031e02db61be4900ff7c9eeb5ccb7fea12851c8. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:37:20Z), 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/QZMEQ2069544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794de1cd39bc25a95d7939c9a7902d35eb0ebf69aaadd184a9217a7f550d3de9. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T22:50:09Z), 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/QZK6N2091018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e3cab4361edaed31a7e4e43dbfd280c49d048d6976ba1beb7d1245c6f76517. 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/QZDA42253951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4dc603a1b5aa475ce9a70921c85c26aec38a24699640b271537452cc0a3a4d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZRP42233096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6480cf8606743493218259cbd026595b01a42a39afd40e221e008eb4a0e3ccc8. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:34:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72362684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0950fce987469180204d07ef89f1bff8b2fa147796d213e36573028872350c58. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZHN52365955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9893f60ddcb2b08cbe879270825ae31cc7ac63b83a75a76548d1cc94b9a03d1. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:06:34Z), 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/QZMEM2308764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd513bc4697efc387024ae730c8c1e2586c6e93323ab28e00fa37a420fca96dee. 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/QZTAX2389280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68592bb5094c129f07b8dc009831b431873c226edd1e3635478656973340b31. 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/QZZ8B2398151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376ceb6d4ead1e86b003e0d21ee6c6a4d3593e0877d2c64da4b56175c7a373b6. 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/QZWDE2398643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be6d8e4b6c6ad9b1ee996033d4a5c1f580c086b0ae9b1a7d642a1f5ec09f06d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:14:42Z), 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/QZZ8A2391550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68592bb5094c129f07b8dc009831b431873c226edd1e3635478656973340b31. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZZ8B2398151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd9aae927e2d67b5c2425d997fdac30e6a13333267cb12ca5431616887618c9. Chain 2 (Bitcoin): anchored in block 957535 (2026-07-11T07:11:01Z), 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/QZZ8B2398171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2566cc68ee9d4719bc2398d84dae91cf9d458c871aa5578622cec093269a0731. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T13:52:55Z), 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/QZZ8B2398769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb91cdeb53b73094258b796809f2a059f22189560f0cc5866eca6b1502d91845. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZZ8B2398842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57042ed7fc82eb0f4fbdd6c74088292ffebbf5eaf80109fd5b97e96014f94f87. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZTAZ2429447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1771654ecba7f05727fdc1889e855a738de88fc489174237dfcff60a9c656a16. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:25:57Z), 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/QZFYZ2521033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804f64d31d61a20936418d80bd44db6a36f08b55a5ca02c748ca76a4d4fe9040. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:34:15Z), 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/QT3F32473275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d81324d501166ebc478a536210b83a6e9bf1f8af22f2aa50834c66ec0ee612. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32546937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a5bae9f68776bd75c55ee5e5ddaad077b9dbe9b6a7da5831d781cb9562c99c. 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/QZZ8B2398781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6044d53e9529f0a052e2fb854c794be7b73a86b2d66e0d40760e99440321152a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAFG2099474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a80185418d7ce843a5afad7b1e22d0da1311fd1fdf3729273f5ef9141b1078c. 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/QZES72358771.
indiemono AMBER CITY | Indie / Alternative VOL. 03
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57042ed7fc82eb0f4fbdd6c74088292ffebbf5eaf80109fd5b97e96014f94f87. 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/QZTAZ2429447.
Indie / Pop / Folk Compilation: June 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a80185418d7ce843a5afad7b1e22d0da1311fd1fdf3729273f5ef9141b1078c. 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/QZES72358771.
Best Indie Folk of 2024, Vol. 3 (Indie Folk Central)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a5bae9f68776bd75c55ee5e5ddaad077b9dbe9b6a7da5831d781cb9562c99c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZZ8B2398781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb253dfc0870f0b18e937fd99512a725cd51a95332a66162946affc5a624467e2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZWDE2538459.