Billain (born Adis Kutkut) is a Bosnian drum and bass producer, DJ and sound designer from Sarajevo. He is mostly known for his distinctive style within the neurofunk genre and his collaborations with
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 0x7ab27f82580fc70362927ee923ef66d04052a950dcc9b36f8111a6bd2fd004b1. 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/03c9a40f-3dc3-449d-bc96-763e3fb64de7.json and https://artists.proofprofile.net/proofs/artist/03c9a40f-3dc3-449d-bc96-763e3fb64de7.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 0x7426c82c2d19c4d2e8e6826c0981455cf430867c945e3f99c5954f5324c9e264. 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/GBTEL1200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9bd9073fe7377cb7ae4937b6ec62fba3cabbab1ea4ccd94540e330b930b432. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBTEL1400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0813546242e974214b7e9a7dce1b86ea161398c82c6ace72aef6ca833a38c88f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/NLCK41027748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde9ee7133e87f7f28b90ad328cfe1f3f980a64a150160a8943fdcc0e45894bb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBTEL1800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6dfcac3ee7966be22db15fb6fd28200a915e40ce8fc11721f01e4cae5b91e20. 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/GBTEL1800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0805e3da59595b5c45d8df2b43a4dc872d5cef7463e68fd52f1a5c1b1d399f. 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/GBTEL1800041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec76637eed60901a39b7421dfc5c90a8048a0a64c5554839e87b44885ffba22. 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/GBTEL1800040.
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 0x2d29cabfa83465def31f41119e431bd14182d360081dec3aad4c88c462ebb726. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/GBTEL1800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd932d971b111e0091f6f1322557ff0877cbc6bbe0ae476554ae86f5b716041b2. 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/US25X1901443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8510b28ab9cc9420f8743496db02bcbffe86fb49ddfe7119817b88f1d28e97f. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/US25X1901446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e8bcec27e70d54e1a70cd40d1d467c605c86bf2116db34f85b2c9be40aaadb. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:31:41Z), 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/US25X2105892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31f13b61ab47eeaf7450b306a68f1f4dbd6182fbbfbdd77b531382485cec003. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/US25X2105893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc0dbc305f5f87fa4111107f7997fc6633fd473284d67f9d0fe1cc737f1ce18. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/UKACT2320621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf465590318b7f119e5750d7d8aa7636bbb9020692f846782835ac013ac153064. 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/GB8KE2517163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee3e52296421b05efd33329d51c2c17f99dde1c8da3c10d59567f918a72d9fa. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLCK41094534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5953a7ae8ad4a84277701e449e3d21ee7b6fa13e4bcf605f465701c1051694df. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/UKU932390013.