{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:E7E42NPRF43466LEID7OQVF3X7","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":"6eb004531f35ebde129b19098a23a19dbfd50b935a9aee834b18014a4e35dae6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-12-05T07:15:33Z","title_canon_sha256":"2dbb88069769811eda65440f31da448e9d791de47efbbff0aadaa521947d2442"},"schema_version":"1.0","source":{"id":"1812.01835","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.01835","created_at":"2026-05-17T23:54:58Z"},{"alias_kind":"arxiv_version","alias_value":"1812.01835v3","created_at":"2026-05-17T23:54:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.01835","created_at":"2026-05-17T23:54:58Z"},{"alias_kind":"pith_short_12","alias_value":"E7E42NPRF434","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"E7E42NPRF43466LE","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"E7E42NPR","created_at":"2026-05-18T12:32:22Z"}],"graph_snapshots":[{"event_id":"sha256:84fbef73053c24fbac20b167825061990ba14169937cfda283d7ed87ccf84321","target":"graph","created_at":"2026-05-17T23:54:58Z","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"},"paper":{"abstract_excerpt":"Expanding the observational frequency of gravitational waves is important for the future of astronomy. Torsion-Bar Antenna (TOBA) is a mid-frequency and low-frequency gravitational wave detector using a torsion pendulum. The low resonant frequency of the rotational mode of the torsion pendulum enables ground-based observations. The overview of TOBA, including the past and present status of the prototype development is summarized in this paper.","authors_text":"Ayaka Shoda, Ching Pin Ooi, Masaki Ando, Naoki Aritomi, Satoru Takano, Tomofumi Shimoda, Yuta Michimura","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-12-05T07:15:33Z","title":"Torsion-bar antenna: a ground-based mid-frequency and low-frequency gravitational wave detector"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.01835","kind":"arxiv","version":3},"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":"sha256:70d7359222c13b31886a9aeb045e1e77b3cb686615ba6228e9fd71fa21b5860f","target":"record","created_at":"2026-05-17T23:54:58Z","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":"6eb004531f35ebde129b19098a23a19dbfd50b935a9aee834b18014a4e35dae6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-12-05T07:15:33Z","title_canon_sha256":"2dbb88069769811eda65440f31da448e9d791de47efbbff0aadaa521947d2442"},"schema_version":"1.0","source":{"id":"1812.01835","kind":"arxiv","version":3}},"canonical_sha256":"27c9cd35f12f37cf796440fee854bbbfe0d9e7639f8dec978f3aba5d9b45d76b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"27c9cd35f12f37cf796440fee854bbbfe0d9e7639f8dec978f3aba5d9b45d76b","first_computed_at":"2026-05-17T23:54:58.645941Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:58.645941Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ta/KkV497HWzoWdOhxwp2Gl3au5QB5SGljo7RjP4top4AtCmISjYhJZVbQDdTq4TpUXx3PsXGHmHLRQk67pUCQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:58.646967Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.01835","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:70d7359222c13b31886a9aeb045e1e77b3cb686615ba6228e9fd71fa21b5860f","sha256:84fbef73053c24fbac20b167825061990ba14169937cfda283d7ed87ccf84321"],"state_sha256":"3905d30d5fa4f249d20e0ffe5b2cc4b1ad450d30f290bc9c629b280c331a8281"}