{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:YA2ATA6YIHY752ZFSXFJBPARQO","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":"074db728609dd5ee1281c0deef0ce28a6c2c32acc0ff0fe59ac0a66b3cabc8f5","cross_cats_sorted":["physics.geo-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2009-09-18T00:57:05Z","title_canon_sha256":"ddc0e537c24eb9e944525cefeb8a6ab678b62b1a38848efccdf43bd265f922e0"},"schema_version":"1.0","source":{"id":"0909.3341","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.3341","created_at":"2026-05-18T03:23:57Z"},{"alias_kind":"arxiv_version","alias_value":"0909.3341v1","created_at":"2026-05-18T03:23:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.3341","created_at":"2026-05-18T03:23:57Z"},{"alias_kind":"pith_short_12","alias_value":"YA2ATA6YIHY7","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"YA2ATA6YIHY752ZF","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"YA2ATA6Y","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:20cf243b32ef80979ec969ff4721ffe4ebd90fd55380739040a127c484024727","target":"graph","created_at":"2026-05-18T03:23:57Z","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":"We present results obtained from a finite-element simulation of seismic displacement fields and of gravity gradients generated by those fields. The displacement field is constructed by a plane wave model with a 3D isotropic stochastic field and a 2D fundamental Rayleigh field. The plane wave model provides an accurate representation of stationary fields from distant sources. Underground gravity gradients are calculated as acceleration of a free test mass inside a cavity. The results are discussed in the context of gravity-gradient noise subtraction in third generation gravitational-wave detect","authors_text":"Jan Harms, Riccardo DeSalvo, Steven Dorsher, Vuk Mandic","cross_cats":["physics.geo-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2009-09-18T00:57:05Z","title":"Simulation of underground gravity gradients from stochastic seismic fields"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.3341","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":"sha256:93707ab2d5ee25e2e51588bb7263128f2635d5c07c181854f678a59b7b35bc2e","target":"record","created_at":"2026-05-18T03:23:57Z","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":"074db728609dd5ee1281c0deef0ce28a6c2c32acc0ff0fe59ac0a66b3cabc8f5","cross_cats_sorted":["physics.geo-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2009-09-18T00:57:05Z","title_canon_sha256":"ddc0e537c24eb9e944525cefeb8a6ab678b62b1a38848efccdf43bd265f922e0"},"schema_version":"1.0","source":{"id":"0909.3341","kind":"arxiv","version":1}},"canonical_sha256":"c0340983d841f1feeb2595ca90bc118397b1f403611ae26b857a9df9283e5aae","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c0340983d841f1feeb2595ca90bc118397b1f403611ae26b857a9df9283e5aae","first_computed_at":"2026-05-18T03:23:57.681104Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:23:57.681104Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DbJ0CHHfvNJbS/714+V2ZPij3dWg6w69fEQg2GyHUHmsfU8U0Lwc0SmRBX2pwRqgamg4ecIAveo/3WKUQ07lCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:23:57.681760Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.3341","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:93707ab2d5ee25e2e51588bb7263128f2635d5c07c181854f678a59b7b35bc2e","sha256:20cf243b32ef80979ec969ff4721ffe4ebd90fd55380739040a127c484024727"],"state_sha256":"6072d60133580ba22b85828bc630303f7df28064c3e2b67de2e66afd7214d2fb"}