Nervus are an English anarcho-punk band from Watford. The current lineup is Em Foster (guitar, vocals), Paul Etienne (keyboards), Lucinda Livingstone (bass), and Jack Kenny (drums). They have released
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 0x36f77bedb1e0e5c71cdac21e6417e5c6db26a68cb2d2f84f922362bd44ce25e2. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9221d251-c285-465e-98ab-1804ac6fc81d.json and https://artists.proofprofile.net/proofs/artist/9221d251-c285-465e-98ab-1804ac6fc81d.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 0x1677249ec907132e9a5d5c0100d52dc7810112f3b8a20d64a303e84c301f56e4. 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/USA2B2200977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cef402853a1e35ef295889b7f7bbfe95ee7c68c980f6267210300b962e30ea7. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/USA2B2200975.
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 0x401610f3ff7387cfe08c37d68026e76cd94389804d58ff92032899ffde7c9d3c. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USA2B2200976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e19cd8acd9373dcef256ff7cd97931198143cbb9b5e3f4d13e9831a6fa22dc. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/USA2B2200979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a89375f26bd6c6ef1443d804cb3da6e425da0a104f822f5692cd7f823d70aa6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM6P41904877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd7f2ebe0fc6a5f626d14324fb8290d0b805e7b12a4b3739494b154dc918b26. 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/QM6P41913498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4750e011c15971f2bd4486b6c76f0e78faa3c52fd8914fbc6fbbab613e7d72a4. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/QM6P41913491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4093a441e8658c03f7b5ff421665a57c670fb460f530bdac28c14b9d9794720f. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QM6P41913492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd71ceb4691a65df483c7037a9caa487bc977df1bdb9ca9266415f909ce56da6. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QM6P41913493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4642c41679364fd26809c4fd8f47e9f0427a55f7bfe3266d8ca16606ed3810. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM7281781480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca4f0f7c47bf2a62f8dd910ba6c2773dd801dd00e098aed079d4acdfca2db48. 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/QM7281781514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e45692a984167c5bbfb2f05048e2e581c50dd1dfe459d398750765cff0ab191. 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/QM7281781515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3961f760b5e9a85cadc3f27fa71b8a64e3b82da8f8194c62496f4c95efebb9. 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/QM7281781516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cdcd66ec27c6a729f7d9abe6b4f3eb787ab1b2109257fc0293ab1e30ed69c3. 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/QM7281781520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3180ae8e71ce37c359491158279daded8e1ba4b537a07ea3f0bd3750a53abec0. 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/QM7281781522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51f7436a0a8a931cb1204037cb783ef6d7411e3faa1274f2239ebe531452e40. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QM7281781508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb423ed681a552570d68c3b0358176075447b907557c1df10c455c9f18028ff. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/QM7281781510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4c3a2b9e03c3dbc502fe6ae29eebf25c1cafa6c22915a0db947745e2e35896. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QM7281781518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69be037e7273e5d87c00f68b1ce24b9bd927d26ff998e89524e07568b31edc43. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QM7281781519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b509f6bb08c1a8876407b2b2922407742b39d36ace75559cb2dd7f710a0319. 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/TCACT1631010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b063573e4ee8786c8ee5c2032807feffc4dc6a3884ce836ca7e506572e574b. 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/TCACT1631012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa875d4850c994116b1eb4f44dbdf31a232d4735cc339fd8c5312637be31c263b. 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/TCACT1631009.