Erwann Kermorvant (born July 28, 1972, in Lorient) is a French film composer known for his musical score contributions to cinema. Biography Kermorvant gained popularity for his work on films such a
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 0x6b66dec6dc07eb75628b2901047378a58e94bf8ff52448068d6f731afcf66967. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc8d5f53-0cca-4c19-aa7b-95bff7579821.json and https://artists.proofprofile.net/proofs/artist/bc8d5f53-0cca-4c19-aa7b-95bff7579821.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
L'Île prisonnière (Musique Originale de la Série)
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 0x0fa161fa47ac60c6ce4345d32e0ab58671f1fcf34187e98b1c5d963d0e8b39b5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FRY022200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d500c938228e7cd2bcbed25aa044e0ff8e74ef87e097be1e3742e75cad4e5d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FRY022200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2057ab69b3c2d5d97989fd17619276c68650229bb4b3a7c49e30e717d278b67c. 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/FRY022200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421396a0f0f447dffda4c0d53001fe4f00f49d1049e44e28bdc55a1de6c16af7. 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/FRY022200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf4a6fa746bd89ccaa5389c2fb09c2b6455b4595430092480bd5a6e257a19ad. 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/FRY022200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c251abf20ca2c1c59ae3fb226171571ac9b69595da63d615f08057fbdbd726. 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/FRY022200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa248f2a5ed4af0befc8a7ed07a7609ee9e4d3dfdf0b0a595b8317329307e9a98. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRY022200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa1c47839a338e091c27ab61952fdf812d913ecb11757a39a1fd38acfc9ff79. 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/FRY022200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350730dbf84637c66e3ba32a4b05aaab845d0780c795a6a3546a03bc57d73ad2. 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/FRY022200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb289be7585747440691066f728cc825c5b58b11a7d30468aee2fe89ebadde12. 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/FRY022200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd03f8da5f0efd01e9d3132a6e4bfdccca778f48a9b8ce2b9d48c63e50fcbd0a. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/FRY022200046.
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 0xe17dd7eb9db65844b7b812d2b81842514a6a80ce8cd1f9ff8fd9b52f40b851ce. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/FRY022200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0753b49cd592a5b9b027bc2ad84e9f68c3e162ab2d68b4a8375c1f1bb8eb89c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FRY022200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030589f3b474ae5bedb81c8563eeba19640bf0daa0a905c791763139634dde17. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRY022200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea27bce7adf4ba3709dab777049b9b941538d119cef1acb22a74558166a14a3a. 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/FRY022200056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8c011b0dd8ce59269a19cd9b5cd2905620777842c0cb92c76a1d940d00e421. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/FRY022200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1f66fb00051fccbe9326f8bb415a969eef630b52f51538e4baf47bdea3c8ea. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/FRY022200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7a0efd201e8a933cf12fe58cf5a6e153c1901286686b6020142aeb6f04444d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/FRY022200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1959c671dd1fd753427efa3314c75acf3968c1b063403e383d61fb9b0858dc50. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/FRY022200071.