Les Friction is an independent music group led by Helmut Vonlichten, Nihl Finch aka Evan Frankfort, and a singer named Paint. Helmut had previously collaborated with his brother Franz Vonlichten in th
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 0x2634220d5fbe3fc13081fd305084cdbca39b3b5088273a14a7e880274dd991c4. 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/55e6c4c4-0c9a-4943-8197-b96825a10d8e.json and https://artists.proofprofile.net/proofs/artist/55e6c4c4-0c9a-4943-8197-b96825a10d8e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Les Friction (Instrumental Bonus Tracks Version)
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 0x43194e9c01beee502d683b3d105a188b3f423fb0a1e3abd02e323d08f11257d8. 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/USHM91176690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9a743caaf2a3664492f5b461b7791271d1a94e9e09019f90778059fa856cb0. 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/USHM91176691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf13dccc455519d6e3892c4b6ce9ea7d9ea823c6ee9dad4084e9868cec3bb8fb. 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/USHM91176693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3f4a95dc6f176b406c30d9c49bcf8594a39d2b1e1df2df0df932f8ef7fa01e. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USHM91180886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd606db8cbf4251b5ccd46531f5f34b1cfe21d8437dbddb4390f674585626e54. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:45:18Z), 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/USHM91180890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdf0bcb7b60f36263819a6267e39c4281eeab23a0b208d185a068f7f5a01255. 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/USHM91180892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b0687a56bd6631d9f34d27d3124c44f0fd66467d612a7301610fc6ae58ece5. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/USDY41748626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf32d4cad058745098fd216cf3acace6fc8efb0394f6c4ff6ce3e5aaec209f8. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/USDY41748630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3bde0b54d30dd99acd4ddba5ba550270c70f4a7c6da9baf59fe82f5297084b. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/USHM91767133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec796b40d0b8bc1bcd9983c9f6faf909235fee7964060ba69b62745d681fd56. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:31:54Z), 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/USDY42265201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898d405086ca0a49d40cf736c612fafc47ff7164082bcef5ffb978174b818a97. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USDY42265204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0757cf6d85300fd3e22efa7c5a28aaa0108e3d345b74229f4824505148bc6424. 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/USDY42265205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882927c2dec149e6fb826cb529e11a5cea7a3a63d669dde2a919a29dba3e7ebc. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USDY42265207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebee64a3a0c77ebeb3e391a7f74e770d02fa120f6cd564636dfe84cbb987e02. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USDY42265208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e161c99eb298cb44b0f73b565f140a327057badc3441018b57ad06e152aaf0. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USDY42265209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451d747765490cceb87e04b50f3850e0ea01d9b4c066f017e2041c8f613d522a. 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/USDY42265210.