Gautier Serre (born 5 June 1984), better known by his stage name Igorrr, is a French musician. Under the Igorrr alias, he combines a variety of disparate genres, including black metal, baroque music,
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 0x3d047df37acb39a22345bac144e3c823b6958e09ddfdac6c3d48e39da4f47049. 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/98dbe5fe-d20b-45df-8889-369b4a26d146.json and https://artists.proofprofile.net/proofs/artist/98dbe5fe-d20b-45df-8889-369b4a26d146.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 0xde2a54141bd188e543203c07811d548f37707d10cfd909266e81d3fcc76d0ea6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DED832000476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56cf431945965e854900cf98b50678bceb910895e1f05a8542caa590aecb1c3. 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/NLCK41022181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d52d8bbf14870cefe3236329adb1c3df11492021d698fca8f569c4a2ad30de0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLCK41022182.
Illud Divinum Insanus - The Remixes Complete
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11eb0d447bf14e9932437f33059ebbb0c57a20ae9bc509aa0e6c10a0ea914bb1. 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/FR33T1125627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11eb0d447bf14e9932437f33059ebbb0c57a20ae9bc509aa0e6c10a0ea914bb1. 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/FR33T1125627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56cf431945965e854900cf98b50678bceb910895e1f05a8542caa590aecb1c3. 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/NLCK41022181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334968ac36e0f1edd7e933c879f4e5ebf165a046d996aec075ece8cba2286be1. 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/QM5LC1600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac9b4032d7e5a2334a704047d105eacc775f3cd497bfc73d8b55a9df27b8e27. 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/USEP42357011.