{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:ZMWPA2QH57H6VXCX2BFIIZCD2C","short_pith_number":"pith:ZMWPA2QH","canonical_record":{"source":{"id":"2307.12891","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2023-07-24T15:41:47Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"5995f11fb7c267a280fc1e9176a9b306b118109e41355a1c2e7a858072df3540","abstract_canon_sha256":"cae00d0aca5c9b3f92ddaffeac4426e8d10d43a610028e7364ef73ba8b58b684"},"schema_version":"1.0"},"canonical_sha256":"cb2cf06a07efcfeadc57d04a846443d08324f34cb91c205d4f5967be7ecd07de","source":{"kind":"arxiv","id":"2307.12891","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.12891","created_at":"2026-07-05T06:33:59Z"},{"alias_kind":"arxiv_version","alias_value":"2307.12891v1","created_at":"2026-07-05T06:33:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.12891","created_at":"2026-07-05T06:33:59Z"},{"alias_kind":"pith_short_12","alias_value":"ZMWPA2QH57H6","created_at":"2026-07-05T06:33:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZMWPA2QH57H6VXCX","created_at":"2026-07-05T06:33:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZMWPA2QH","created_at":"2026-07-05T06:33:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:ZMWPA2QH57H6VXCX2BFIIZCD2C","target":"record","payload":{"canonical_record":{"source":{"id":"2307.12891","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2023-07-24T15:41:47Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"5995f11fb7c267a280fc1e9176a9b306b118109e41355a1c2e7a858072df3540","abstract_canon_sha256":"cae00d0aca5c9b3f92ddaffeac4426e8d10d43a610028e7364ef73ba8b58b684"},"schema_version":"1.0"},"canonical_sha256":"cb2cf06a07efcfeadc57d04a846443d08324f34cb91c205d4f5967be7ecd07de","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:33:59.862992Z","signature_b64":"xzblCZeFRbF16+YHiclDe4rbF7E+2E+RutUAm5KltAtoWGbCDdmaiCmvC+z+CaXHszsbgNFXskn6Sfd90325DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cb2cf06a07efcfeadc57d04a846443d08324f34cb91c205d4f5967be7ecd07de","last_reissued_at":"2026-07-05T06:33:59.862444Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:33:59.862444Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2307.12891","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:33:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OudLQsI0gUoIGZY6AyO2suodtgP9C9XywJqfGXseugS6d+vCDYqzvvQRLGFRc9wz4a5VuGmgx0TNKFQK3oBUDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:08:06.595556Z"},"content_sha256":"249f11d2c8f2ec087a952fbb3bc0eb758025aacd4f46113a61e299272b8b9447","schema_version":"1.0","event_id":"sha256:249f11d2c8f2ec087a952fbb3bc0eb758025aacd4f46113a61e299272b8b9447"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:ZMWPA2QH57H6VXCX2BFIIZCD2C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Design and sensitivity of a 6-axis seismometer for gravitational wave observatories","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"physics.ins-det","authors_text":"Alan V. Cumming, Alexandra Mitchell, Alex Gill, Amit Singh Ubhi, Artemiy Dmitriev, Chiara Di Fronzo, Christopher J. Collins, Conor Mow-Lowry, Denis Martynov, Giles Hammond, Jiri Smetana, John Bryant, Joscha Heinze, Leonid Prokhorov, Sam Cooper, Tianliang Yan","submitted_at":"2023-07-24T15:41:47Z","abstract_excerpt":"We present the design, control system, and noise analysis of a 6-axis seismometer comprising a mass suspended by a single fused silica fibre. We utilise custom-made, compact Michelson interferometers for the readout of the mass motion relative to the table and successfully overcome the sensitivity of existing commercial seismometers by over an order of magnitude in the angular degrees of freedom. We develop the sensor for gravitational-wave observatories, such as LIGO, Virgo, and KAGRA, to help them observe intermediate-mass black holes, increase their duty cycle, and improve localisation of s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.12891","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2307.12891/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:33:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F1KGn8IL4JTbzbqg4NkthkvZDZqmQ79va+d7cLekli3alL0YE95eFk50XEpoVKSuXb5uyYgptxqRSXBThBZnCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:08:06.595948Z"},"content_sha256":"b0197618b45d613497a5af643142a61fcac5f76f37bd8daf78f49f9d6aa96932","schema_version":"1.0","event_id":"sha256:b0197618b45d613497a5af643142a61fcac5f76f37bd8daf78f49f9d6aa96932"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZMWPA2QH57H6VXCX2BFIIZCD2C/bundle.json","state_url":"https://pith.science/pith/ZMWPA2QH57H6VXCX2BFIIZCD2C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZMWPA2QH57H6VXCX2BFIIZCD2C/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-07T08:08:06Z","links":{"resolver":"https://pith.science/pith/ZMWPA2QH57H6VXCX2BFIIZCD2C","bundle":"https://pith.science/pith/ZMWPA2QH57H6VXCX2BFIIZCD2C/bundle.json","state":"https://pith.science/pith/ZMWPA2QH57H6VXCX2BFIIZCD2C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZMWPA2QH57H6VXCX2BFIIZCD2C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:ZMWPA2QH57H6VXCX2BFIIZCD2C","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"cae00d0aca5c9b3f92ddaffeac4426e8d10d43a610028e7364ef73ba8b58b684","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2023-07-24T15:41:47Z","title_canon_sha256":"5995f11fb7c267a280fc1e9176a9b306b118109e41355a1c2e7a858072df3540"},"schema_version":"1.0","source":{"id":"2307.12891","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.12891","created_at":"2026-07-05T06:33:59Z"},{"alias_kind":"arxiv_version","alias_value":"2307.12891v1","created_at":"2026-07-05T06:33:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.12891","created_at":"2026-07-05T06:33:59Z"},{"alias_kind":"pith_short_12","alias_value":"ZMWPA2QH57H6","created_at":"2026-07-05T06:33:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZMWPA2QH57H6VXCX","created_at":"2026-07-05T06:33:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZMWPA2QH","created_at":"2026-07-05T06:33:59Z"}],"graph_snapshots":[{"event_id":"sha256:b0197618b45d613497a5af643142a61fcac5f76f37bd8daf78f49f9d6aa96932","target":"graph","created_at":"2026-07-05T06:33:59Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2307.12891/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the design, control system, and noise analysis of a 6-axis seismometer comprising a mass suspended by a single fused silica fibre. We utilise custom-made, compact Michelson interferometers for the readout of the mass motion relative to the table and successfully overcome the sensitivity of existing commercial seismometers by over an order of magnitude in the angular degrees of freedom. We develop the sensor for gravitational-wave observatories, such as LIGO, Virgo, and KAGRA, to help them observe intermediate-mass black holes, increase their duty cycle, and improve localisation of s","authors_text":"Alan V. Cumming, Alexandra Mitchell, Alex Gill, Amit Singh Ubhi, Artemiy Dmitriev, Chiara Di Fronzo, Christopher J. Collins, Conor Mow-Lowry, Denis Martynov, Giles Hammond, Jiri Smetana, John Bryant, Joscha Heinze, Leonid Prokhorov, Sam Cooper, Tianliang Yan","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2023-07-24T15:41:47Z","title":"Design and sensitivity of a 6-axis seismometer for gravitational wave observatories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.12891","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:249f11d2c8f2ec087a952fbb3bc0eb758025aacd4f46113a61e299272b8b9447","target":"record","created_at":"2026-07-05T06:33:59Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"cae00d0aca5c9b3f92ddaffeac4426e8d10d43a610028e7364ef73ba8b58b684","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2023-07-24T15:41:47Z","title_canon_sha256":"5995f11fb7c267a280fc1e9176a9b306b118109e41355a1c2e7a858072df3540"},"schema_version":"1.0","source":{"id":"2307.12891","kind":"arxiv","version":1}},"canonical_sha256":"cb2cf06a07efcfeadc57d04a846443d08324f34cb91c205d4f5967be7ecd07de","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cb2cf06a07efcfeadc57d04a846443d08324f34cb91c205d4f5967be7ecd07de","first_computed_at":"2026-07-05T06:33:59.862444Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:33:59.862444Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xzblCZeFRbF16+YHiclDe4rbF7E+2E+RutUAm5KltAtoWGbCDdmaiCmvC+z+CaXHszsbgNFXskn6Sfd90325DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:33:59.862992Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.12891","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:249f11d2c8f2ec087a952fbb3bc0eb758025aacd4f46113a61e299272b8b9447","sha256:b0197618b45d613497a5af643142a61fcac5f76f37bd8daf78f49f9d6aa96932"],"state_sha256":"18be3f1114142fac2178d6d36144352825874e6729bf78b9398776c898081ab9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HidY56EAhxrg4wj03FbXPPF9S2UDLFPOEOOQ0LtJjSnOVyj5ytH1Eq5lgE7He9JMUFVghFkbUOkprbbaPx1RDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T08:08:06.597913Z","bundle_sha256":"248f0f3d71ccd97dad509040d7ff1a186d27bedfdc2d1369e347573d26104a44"}}