The Four Preps are an American popular music male quartet. In the 1950s and 1960s, the group amassed eight gold singles and three gold albums. Their million-selling signature tunes included "26 Miles
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ff09c4dee1cd0aadad16213a2cbe228f000fe36c51ffb3267e5e4dbf762c67. 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/506d93ec-d6bc-4cb6-bf8f-1e362755d496.json and https://artists.proofprofile.net/proofs/artist/506d93ec-d6bc-4cb6-bf8f-1e362755d496.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bad Times At The El Royale (Original Motion Picture Soundtrack)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f7e6ccd352a8fd3e971385f37666c26ec34e8cf1241e67905aeb8a029cd2c8. 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/USCA28800296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7325e1fc4141bcbda4a0923c1d8b6acd89529ec7125ad62048b8a98e6866cf4e. 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/USMO16882607.
This Old Heart Of Mine (Is Weak For You)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a5a4c1cdf0e75dd9de725071aaf56bf74c9fc520384de4e7fa06e92c5c6dcc. 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/USFM91800486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe721535a11676c2954e0d776d6347aadd6146e8e69c493bd41288178194b1afa. 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/USFM91800487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e2a31a9518bd4ac547e9009d18336352a5a4137c0e83fa89508172068c4a03. 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/USUM71514588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e5b67729dc2c24fd3da98eafe870e15d9616a1fa88f4628420e619f9833aec. 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/USQX91100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afa7ffacb55f9a3dd85e055a48ca6871e90a3cdd53ce3ce151f0d3d1245877b. 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/USAR17200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f30a896b86c4b4bbab4ac84cd251ce2c238846f6d73aeb4b8022194b67d8bf. 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/USGZ20606533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd34e3ffb3e6922e23890e809a5e1c6083a695c9558bd408f95c8cdb56140155. 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/USFM91800488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93d293bb94ad91415f24349726337c02f5ef3ccc5386b883dab6941f47e2672. 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/GBAYE5700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f85000b643ad7979f5a025f7b421f44d443ac4115824fb271b05291d428d5a. 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/AUXN22126272.
Anthology: The Deluxe Collection (Remastered)
Milestones of the Legends: Boy Groups, Vol. 7
The Original Four Preps Sing Folk Favorites & Country Classics
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8352515975989225127ab859f49e403ab59ab45fd6ac8343404b8730127b4f9d. 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/US25T0891628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a43774cdae1622e02b691c0795da30810d0be9bfd5a5fb1b911495e8e26a13. 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/US25T0891630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd198a769fe1a52f4cb07259483bbb98cd6570c11ae3721c749e39ba5a963fb57. 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/US25T0891634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a4c3ec639d13a4b5bd6d490ce70f452214c6b33b5dc15f87a5f7432c6af579. 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/US25T0891635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88294c11d776325ec580ab3e35b46f0b59e2ef7e3a019923003e903c404197f3. 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/US25T0810125.
Calcutta (feat. Lincoln Mayorga and His Orchestra) [Mono Version]
Big Surprise / Try My Arms (feat. Joe Maphis and His Orchestra) [Mono Version]
Top 50 Classics - The Very Best of The Four Preps
The Wonderful World of the 50's - 100 Hit Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8aaed43adbf7cff5af37abf125a5726261e220c4b64d5beaf200daf9d587da9. 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/USDEI7803523.
Capitol Records From The Vaults: "The Best Of '56"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab153ce9ef3a61d4d3a663fa7404fb6113c0aea2230b2c5de792223e9676429d. 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/USCN10000120.
Banana Split for My Baby - Rockin' Tracks from the Good Old Summertime
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a77d9c7086ef1170d617c666305363af804b7f70ee7dc4d4b2084bc5ea022ba. 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/DEC531810128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ff2a517f00081fddeb2df0d107ed30d0c2a740e34606bc179dd0d2eb96c273. 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/DEC531810132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d1242967bfb7e4c0661b9cb72c14ba70fa525bbd205b4d04417df70fead622. 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/DEC531810141.
Capitol Sings Jerome Kern: "The Song Is You"