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 0xde0b54cab041210fe5568a0b813da70aae7e143d2bdd927b30ca39a6de6c224a. 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/47ca2198-4af0-4374-91bc-a036a3995d73.json and https://artists.proofprofile.net/proofs/artist/47ca2198-4af0-4374-91bc-a036a3995d73.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Star Wars Soundtrack Themes - New Recording Collection
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 0x8ed897154c7baaf03106b19d0a94f36df757a4e8ac4827fad7838d57de78187d. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/DEVU51737731.
100 Movie Soundtrack Themes - Best of Instrumental Playlist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d084a7a6be75390958ba3d0d1bb1a8efa79a1be272a2593d34669ac0ee0651c. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/DEXO81997119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd762f17ba7adadc84f935cb4a80326a24f11ca4b7c17fe23299ce9fea1a9e76. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/DEXO81997121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099d382143322dcb482fea10400c9519e1692384aa4c02addde3653aeeb6e981. 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/DEXO81997122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333162d2321c716797df5c1765887e9213328a9e071519eb04bc9f86a0f1955e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEXO81997132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204d44f343580499c7900dd22b5e3320c5c294f9dc5cab6906920dc9b901a249. 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/DEXO81997133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ad68fafe973bc8d15c35bc188f70ffab553560e698a0f89f70b5582c910ad5. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T13:24:39Z), 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/DEXO81997136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2c6b76f6d53f038a425d81d65cc933d9d9ebbd49bcba071e2829bc43e2bd8b. 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/DEXO81997137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0e8d41d463065b71e09f972b70fe4746241babcd5b5c9eb14626867ce64d87. 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/DEXO81997157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c35c5299268761531ca60057d2fa72ea7969a108de43e2ab5b5a8b15b793bbe. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/DEXO81997158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dce4d163c5c42babea4f1973f7e251d929f7822dbbc3aefd092b1eaace2d4a. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/DEXO81997165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b0f62fc6809f79db348e9f7ffca2762a11864d844c9660fe5a937d6cfe4e9e. 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/DEXO81997188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf950cf8cf14bb458caa7c8c2ca8781a8e3027c2d9a67ac293f3fdec99a9c60fc. 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/DEXO81997204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41f224c106f12401688d37aca7cd51b1c951a585abfcda79cbf01bfb8e2d8d8. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/DEXO81997218.
Classical Music Playlist - Best of Grieg, Prokofiev, Mussorgsky Themes
Classical Music Playlist - Best of Johann Sebastian Bach Themes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d24eae607c5170fd1479a60a34ce430c8d23760ac120d9737591ebce3fb051a. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/DEUE12000270.
Classical Music Playlist - Best of Wagner, Brahms, Schubert, Händel Themes
Classical Music Playlist - Best of Mendelssohn Bartholdy, Dvorak, Chopin, Vivaldi Themes
Classical Music Playlist - Best of Johann Baptist Strauss Jr Themes
Classical Music Playlist - Best of Camille Saint-Saëns Themes
Classical Music Playlist - Best of Ludwig van Beethoven Themes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ecaaa94e4d055c10c602ffaf5f41bb7fc41a88920a297efd21849b75d7ba47. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/DEUE12000308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc744fba828a61c5aed7e6cd9c9f3a5ca9ba569b562adf16f39eece42521dac1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEUE12000309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ab3fd27a586f9d3f481dc492131d60db3e9a9f49c89e4dc3e57cecd3d82fce. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/DEUE12000312.
Moonlight Sonata, Opus 27 No. 2, 3rd Movement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9029cfceb765ab65dbfa14502fc593f31544f06a7639b03f0034fc3ecfc7ab83. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEUE12000315.
Classical Music Playlist - Best of Georges Bizet Themes
Classical Music Playlist - Best of Orchestra Themes, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cb8b66e6297f1f686634267d79b2a71219a22758778f309ad2984d654cc22c. 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/DEUE12000235.
Classical Music Playlist - Best of Wolfgang Amadeus Mozart Themes
Rondo Alla Turca (Turkish Marsh) from Piano Sonata in A
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7574df1c8c72839f8e86d9e77029caf73679753119c4e9bba521263bc9976e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/DEUE12000294.
Classical Music Playlist - Best of Tschaikowsky Themes
100 Movie Soundtrack Themes (Best Of Instrumental Playlist, Vol.2)
100 Movie Soundtrack Themes, Vol. 3 (Best of Instrumental Playlist)
100 Movie Soundtrack Themes Vol.4 - Best of Instrumental Playlist
Classical Music Playlist (Best of Johann Sebastian Bach Themes 2)