thumb|175px|right| Henri Seroka, 2009 Henri Seroka (born 1949) is a Belgian singer and composer. Although he began his career as a singer, he is known mostly for his compositions, especially film musi
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 0x82706398fc8d4421c6177f7eafc35234d7d876073134f74d90d2e719e6a0c779. 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/d4c493ed-a7b9-455e-ac60-2c0d3bfbbf33.json and https://artists.proofprofile.net/proofs/artist/d4c493ed-a7b9-455e-ac60-2c0d3bfbbf33.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 0x89a1249b9e74644a17ff17956a3b934d7dbca1545770e36709344c51e9f9b843. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR6V80934700.
Sebastian Star Bear (Beertje Sebastiaan) [Soundtrack from the Motion Picture]
My Best Songs, les plus belles chansons de Henri Seroka
1968 Szczesliwego nowego roku (Film de Jacek Bromski)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9847194bbe9c4764ec9fc8b6ce687009f6bcd989adf52554c622f2fd6c7c259. 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/FR6V80909349.
Henri Seroka : Music for Jacek Bromski's films
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ac7f50e9e566fa553e70ceba61ba730327a6a4a520091aa553018f984210f5. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/FR6V80909215.
Musik zum Träumen & Entspannen (Peace of Mind)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158fe17691623e9c976f3d772ccb2522b6836ad7cdd192b73b29c16ecbb3801d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR6V80933321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fafe152467ed7aa6e5f0b1a64cfe42c18eeb39ea360ca64b1398c8cae389dda. 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/FR6V80933328.
U Pana Boga Za Piecem, z filmu Jacka Bromskiego (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8d605d085e25a26e7a304cfd6bff10ea47dca3660f0fe0c5ef5f77e301fedc. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:38:36Z), 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/FR6V80907408.
Dzieci i ryby (Les fils de pub) [Soundtrack from the Motion Picture of Jacka Bromskiego]
Stuka kochania (Bande originale du film de Jacka Bromskiego)
Kuchnia Polska (Soundtrack from the Motion Picture of Jacka Bromskiego)
In God's Little Garden - U Pana Boga Wogrodku (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676ce3ed661b5910bc58b23f41b21eb28bebd32b4fd50eac6e62bbc35a728e69. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR6V80821432.
D'où venons-nous, qui sommes-nous, où allons-nous ?
Alice's Theme (from the Musical Film Alice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0a307bdedfbb409df00e6995c567910e3a743ed490af7f2e1119e22968ffd1. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/FR6V80724360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f1765652af781fd1cb345b4695c222e1e7ded080cb5b213cae501f8b71ad80. 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/USL4Q0808968.
Zabij Mnie, Glino - Kill Me Cop (Original Motion Picture Soundtrack)
Flight of the Spruce Goose (Soundtrack from Lech Majewski's Movie)
Henri Seroka: Credo, 10th Anniversary Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86b1ed65f7e23e8b5a17468b5b624a6082a207b2741ab830efbadd27a3666ba. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR6V82569193.
Pastoralka I - From Jacek Bromski's Movie "In God's Little Garden", Orchestrated by Krzysztof Herdzin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5b65cd9940c5fabff68229a52b95b072029e50dd695c1c2ed7c39e81ab23fa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR10S1632504.
Gipsy Waltz - From Jacek Bromski's Movie "In God's Little Garden"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fb2fefce867d72d2c0a0f199d06ec5eeaea43fa961dba5e4023554e54df48a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S1632507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2531812bc0594fd95e8e025fca52d75f630e9f3148c89c5e6c69c26d7c77ce11. 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/FR10S1632519.
Comandant Henryk - From Jacek Bromski's Movie "In God's Little Garden", Orchestrated by Krzysztof Herdzin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a39f2e91665e8ee9b4ff76887f878c01eab7d968879ed4e9ad13d0383e28afc. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:50:06Z), 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/FR10S1632501.
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
Arizona Roads - Orchestrated by Krzysztof Herdzin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4b5c986dc7615cbc05d645676d7c1aaa40ad3adc544cdc9a899b1339b3723d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FR10S1632499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1163d96a3a2951c2207809248b0b7f353c3fe0e7ae0dddd354a9d05a1e3db987. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/FR10S1632523.
Struzikowa - From Jacek Bromski's Movie "In God's Little Garden", Orchestrated by Krzysztof Herdzin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c162e61d8cdd0b16ff7aa7134d6615a582c70023b8ce5189abd85a19968ec5c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR10S1632503.
Luska - From Jacek Bromski's Movie "In God's Little Garden", Orchestrated by Krzysztof Herdzin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96723915fd25ea956fa5995efd69f0eb7e7647b2101ffda4a4b2a6161abe59d3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR10S1632505.
Palace's Waltz - From Marc Mopty's Movie "Ataturk"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ff852058b02ba760be5455cdbd1d1e0b320a2d1539b424c8abad45cc52001d. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FR10S1632529.
Easy Go - From Lech Majewski's Movie "Flight of the Spruce Goose", Orchestrated by Ralph Benatar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe92d4aca13872ba58e18eddf0866505a5b5e14d1bd5dd837ba945df747ed7af. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/FR10S1632511.
Insula Ithaca - Orchestrated by Krzysztof Herdzin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf8ad1d82c9fde11e05aec2e6e33c6b274555400f7ced92f6500567684c1fae. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR2X41823918.
Sirenes - Orchestrated by Krzysztof Herdzin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6a79ee72a9380158b6a5b850b9560a183dc4969d6df51edc7069ecb48aac29. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR2X41823919.
Aeolus - Orchestrated by Krzysztof Herdzin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54801a87ab01e22034d50c586946caedfd37609e95114bcc059560a85b1f83cc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR2X41823924.
Calypso - Orchestrated by Krzysztof Herdzin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dc2684e54d559341655d1832a33d2d6d924f73c3faa2c0f2f568285cf829e8. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/FR2X41823920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55a9db49502b43b5f8c33ba546e95e0cff62fa9f5d7fe1772ad6de9ee8b35b2. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FR2X41823921.
Mater Matuta - Orchestrated by Krzysztof Herdzin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25251024a3b7d1bdb4637cc49444493da4cb6c35b7af306525ce3cd792415391. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/FR2X41823923.
Finale. Lotophagos - Orchestrated by Krzysztof Herdzin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee9a58cd2700dbe89c7fba9ed4e55de75aaab595509564182b8d4adfdd88ae4. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FR2X41823926.
God's little republic (U Pana Boga Krolowym Moscie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad06360dc6de3681651749ac3a1e5c8624154ac348bda0f13d694476d763cd64. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/DGA0T2418800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880af9a9329ec56593ed010c1366d13eaadaecc1bc09352bd30653af44ce165c. 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/DGA0T2418803.