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 0x6b778d66420063a020d7b567aa6eeffce08e807a5b5d2cc4ac9c8a3ae9692306. 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/7e0512a0-cdbf-41b8-9a37-dd69a236bae9.json and https://artists.proofprofile.net/proofs/artist/7e0512a0-cdbf-41b8-9a37-dd69a236bae9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vintage Dance Orchestras Nº7 - EPs Collectors, "Mambo At The Waldorf"
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 0x2c6d3837bc7e9998bf40a8dd3bdc79a9349d855e7d89e7534e851bab97fe6d8e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USA560944940.
Cugat in France, Spain and Italy (Mono Version)
Most Popular Movie Hits As Styled by Cugat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b23ad32f8ff3a31357075a68b53b5e1c18b4ac2468b2bd0c0a3c7c21b795094. 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/USGR10500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23638bd0aa6ba54cc86e16d69808ae3576577895ec7fa1662f4de2ca9a3cd30b. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USGR10500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b9b04aff424a112917e8d750f3afe763adb9503f098cb9a3417b1f0652576f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:44:29Z), 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/USGR10500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2832296fdef0b17627b2fd9b228ec400873dfb49645c3b1a58efcb112d057c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USIR20400838.
Xavier Cugat & His Orchestra 1944 - 1945
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a260675453dc73f5b0d69d5e455cb6fb1dce45cc1cce4bb41d3100e496a4c6b. 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/USBKY0508649.
Cugat Plays Continental Hits / Most Popular Movie Themes
Cha Cha Cha (feat. Abbe Lane, Juan Manuel)
Maracaibo (Original Recordings 1950 -1952)
The Peanut Vendor (Original Cuban Recordings 1950-1952)
Xavier Cugat and His Orchestra In New York June 1940 (Live)
Xavier Cugat And His Orchestra And Friends
Xavier Cugat And His Orchestra In New York May 1940
Musical Moments to Remember: Cuba! Conga! Cugat! (2019 Remaster)
Most Popular Movie Hits as Styled by Cugat
Zip-A-Dee Doo-Dah (From "Song Of The South")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb36fae239ea8188945e33db2e86f52b128ecfe3a9c31d37116edae4d151371. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/PL44J2515473.
Love Is a Many Splendored Thing (From "Love Is a Many Splendored Thing")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb436776b36f42b178da5d6a1ea386034c4c2c83b0b2e7b55dd48c038fa202dff. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:31:51Z), 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/PL44J2515474.
Moon River (From "Breakfast at Tiffany's")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6796c735a399e858e45f2e1024ae420e6210750965324e4544b6821f90b1cb6e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/PL44J2515482.
16 Most Requested Songs Of The 1940s, Volume One
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac7e64f062e2a66370888299d49192d11821c598e3f616b8923fba163a4461e. 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/USSM10028159.
16 Most Requested Songs Of The 1940'S, Volume II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca88a5d578951198657b6d8bb58b3075581d95cf31ed2b6ef92d5dc2f2744f7a. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:24:23Z), 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/USSM15700712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608cacee22c6e618bb8c84d02a659af4517f5c12003714a6b2a3bbdd7ffc41be. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T08:39:49Z), 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/USSM10028884.