Rugsted & Kreutzfeldt is a Danish singing duo made up of Jens Rugsted and Stig Kreutzfeldt, and were very active from 1979 to 1984 and had a series of very successful albums in a smooth West Coast roc
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 0x2edc61f715a177ac346ef3b280cefcb51461fc952345055448f3d315b6327e8f. 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/e1f6a5e8-3611-4221-b7d5-6d0f1903bc42.json and https://artists.proofprofile.net/proofs/artist/e1f6a5e8-3611-4221-b7d5-6d0f1903bc42.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Father Figure - Remastered - featured in 'Babygirl'
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 0xca66f3f7ed877b8c45192acfc9ec9a92be0bac47b152da24211d413ef2fa4439. 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/GBARL0601613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d85cea3b84c79622eb313f033a92c31be1b9ffd42701f7d45c14181ec25ebd. 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/USJAY0400281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecb0256efd404adb454ec5e1927628ce465c331a57f198941efb0e8fb1d2b2d. 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/USSM19200381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916ac6c0585df3c62925cb40ea8d47bd5e04f8610b13925ce334996265c683dd. 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/USSM10602929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb10f080a0e36192e7c59bdd140e31c77fc83ce2f826aff25dab55a4a4410878. 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/SELEA9201080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2774c9de50d4060d6fbf9215e6e09642a36ad0384ff24a8aaf20116f833f8e62. 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/GBARL9200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949e4201affa124857eff0bce49cc898993b23a2be6d57f0d63bc52a05ab7994. 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/USRC17101019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c8f24a49370b460460aec95a0e57195a86af293bf90a7c5489714f98635c01. 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/AUSM09600080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469bb253853baade333d940ccaf103ce879083cbdc6236da0816aefa448bcbaf. 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/USRC10401168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c63734abb9c52867c4fe809f1e24f3edbe25560193bc8ed4203a1deefc6895f. 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/USSM17900689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4793fbbb2c9d3f992041f78fbc96b7c5b427d5661e3e7dcd69d867b17f262a37. 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/USSM10605884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8878e60a3da575013bce046bfb628075ba24506dc9de65caeadd1d9a755e9298. 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/USSM18600632.
When You're Looking Like That - Single Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50871193a4a8603e4d3cc81432128a8a66448842742a4e3b9bc49101cad7c44d. 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/GBARL0100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964b13de297e144e234b69abfc7ca7f2bcf6c560aa959faccded4c0b5e44915f. 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/USSM10113038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71f19a9a79494bb3ffb185e6aba40838ce6f41d2bcf12f825a1aa767d09cfd4. 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/DKADG0201504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bdda0ec391d492d7e4be16a929e018bbd3115eb1c77345a64d10261296cd48. 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/USJI19710149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fc3f37bb57f10da03ee7a6c7b25f6a4670609fd8b12ac80ead5fcba264e278. 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/USRC10001047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdefeba59f10e63a0109ee03e2136a6ff4860c5991591451ded47232757fd619. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSM19910036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb341f3f43e3a344cbff738819f1f006681988e2d00acfcad94bbf42d2059710f. 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/USSM17400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a71d7f26e54992988ce27e3274a386037d32d8d075f6dedeb997d350a22325d. 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/USSM10605879.
I Just Can't Stop Loving You (feat. Siedah Garrett)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ba17026b0397d11cee28c272702a56fb7d1dfadfebe8c9540b6fde3acbce20. 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/USSM19909071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0160fa9b8a6a092e7e66d3a0be6a66eb5eb1ddf989846295139f568b16ecad72. 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/USAR19200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3e50854d2292e3a3d7eecc401bad5b10bbd898cddcd394ab5b30aaa66e5adc. 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/GBCTA0700277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e91687e2aa537cb990e912bda1f3a86c54030bb01652728d32eef647f1bf28. 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/USSM10503839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23724671c0804358f4f8f2f4b39d97dcd4bcee84d15f7b071572ce5084aff951. 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/USSM18800426.
I Still Haven't Found What I'm Looking For
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b46bbe0f9749f8c1033148ed4267a594d17527974877b7816ed7b90702f471. 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/GBBBL0102007.
If You Don't Know Me by Now (feat. Teddy Pendergrass)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee0ebe58814ccecad35484c725030463ef9e3416af3d6df86166e0ee6e0d974. 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/USSM17200813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8ca9a717e491713da06c7b76355840d97c465bd35ca8f9bb190ca32edcb44d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEE868400142.
Take My Breath Away - Love Theme from "Top Gun"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc07d372f95bca263a91165b70b869362bfaf119079bb7c0e784e0abfc0e03bc. 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/USSM19904146.
For Fuld Musik - 25 Danske Pop & Rock Hits Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdd4051b5cf6608109e9a3758354a63a6bc389f85845a748bc1570d19aef2bc. 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/DKABA9511306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb345f8adb45f1dcbfcd662c008049096cda0d77bac3471f37de7e487e1733cef. 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/DKABA0900264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc10c8091e74ff9abe51c98d2662d2aa19cd0f483ac44975837075c20f05a22. 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/DKABA9508306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d8101c8158f9971f40f42acf3838cd6067d630bd21dc214c47a7b1ac3fd183. 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/DKABA0900301.
San Francisco (Be Sure to Wear Flowers in Your Hair)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b618cd50a00f37d9313edbb74375cb9e4b9c1c8b70e05bc12687ab57e0860a. 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/DKABA1102993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838aa11139708d74f86c26f171d5faceac5c1d63e9dc88e62318972d4f1894de. 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/DKABA0701045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65e27214dc58966ac28726aa49fa1ab04ef6383a6cc6eb024b8b88909398100. 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/DKABA9512301.