Nosfell (born 1 December 1977 in Saint-Ouen, France) is a French rock musician who performs in a group with Pierre Lebourgeois (cellist) and Orkhan Murat (drummer). His full stage name, Labyala Fela D
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 0x7d8ffc07500bd73d26933ed57ea9f56c0fba500bebf5b57bc366e8bc6e8f039b. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8522f922-18d3-46ea-9792-9855b64625a3.json and https://artists.proofprofile.net/proofs/artist/8522f922-18d3-46ea-9792-9855b64625a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cristaux [Un oratorio fantastique] (Musique originale du spectacle)
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 0x7ed487cd190fe7657bd5f7b66df539940b692e545e3359f705295210325b99da. 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/FR6OI1700160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815eb34a89fb1c0d0dea9514636ae17cdbe4ac9ee4da7c7bd0251217ec12c574. 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/FR6OI1700180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1b810cee5950c4c7a127d9221aa8771bebe57802bcab785a3e34d1ab2f861c. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FR6OI1700220.
Contact (Musique originale du spectacle de Philippe Découflé)
Pomaïe klokochazia balek (10th Anniversary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b504acc6d799d3fcb851fdcc8c91c712e409a2316037782679bc138b97c41a1. 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/FRV640410000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9065fcceb778e8e85fbb2cb93bb4223c17522a4e6dbd769a791b8153f0b3ed4e. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FR6OI1500150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7827f9374926aa8bb4ba45964404e30765415623da7e56b1dff9fe863d45081a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRV640500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298f39574e37cc76a1251c3d2f32b5362adfc794c1e0d534b717ed25a936e549. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FR6OI1500160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3538467bc2feead0c753fb573bdab4f82312b9c5832d713404f048d606463bc3. 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/FRV640500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446c90525b416234cf6a00da40c37fd2d45ad7816bcd5129b81b83be23b6700f. 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/FRV640500072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d4f74c4d7e54b1cba64ce801f63158f1c20335998739eb5609cadfeb5e0ab5. 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/FRV640500073.
Blewkhz Gowz (The Only Thing He Had to Say) [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ca4f7787e1e808c7a8228ec4541ccf9690cd208f0bee5ca70d0d8cf2d01366. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FRV640500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6616eb6f22cbca0b824fbf4218121ca9cca95848e8b7d831cd68fabe12a0bed. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FRV640500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d038897c6aad5d72a6d402889a56e452bf3df6703103808ff2a153db832252. 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/FRV640500076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f26afd073b6efadc5ed6102e24e6dcbaca419b8a6c469df9b32d93fb92d0490. 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/FRV640500077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e4089d48e538f457a00687ee90bad4bd296822e8d8d8a0bf53e4de8ee2c77c. 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/FRV640500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fc0fa4c6d6c23bb702524ba3b2079d456e6d0cc72442ee7bb4835ed62005c3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRV640500079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf655386d51eff07e8a108680d80e28ed9c8e43a5a88fc6287bc3bc01246889ae. 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/FRV640500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d25f60350227333bdbf86d27138439c1a36a9bf374285e3a77807058ac99357. 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/FRV640500081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe762390f0f673c6bf62bad1a8f6ff3bc6d93da31dbdbb06ba2898888d87f7861. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FR41R1300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c5adae97880a19b7f71caeae7e325b8e618bd6fe49bb77729d8c7fd7899a3a. 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/FRV640910023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d54c225c20ca74ac58e4af2b51f76e5fafeacc2a878df2dc7a18ba5f7a6baf7. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FRV640910004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29119b760bf63da42795f767f22dec4fd85554f6cfcf793abad039c54e20e119. 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/FRV640910008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b77ac407291b6637e3cd5b8adccbced8b7f4e235a82277021a145aa0b8ae7a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRV640600066.
Oh! It's Been A Long Time, But We're Glad You Came
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3671b737ed41f2a468992c9ce1428ab84c9483dc77817fc4450fe1c18076b0c1. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/FRV640600067.