{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:276NIKJDRWXYIX52CSYN5SEL6U","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":"9ec7dc567854480a7aaeccb16e74a129c8120fb0f05635720d386c38e1568957","cross_cats_sorted":["physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-04-30T13:26:40Z","title_canon_sha256":"dd968d969734ea479400cf7fa29042442002f088a787f1b7f360728425748d13"},"schema_version":"1.0","source":{"id":"1304.7989","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.7989","created_at":"2026-05-18T00:51:19Z"},{"alias_kind":"arxiv_version","alias_value":"1304.7989v1","created_at":"2026-05-18T00:51:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.7989","created_at":"2026-05-18T00:51:19Z"},{"alias_kind":"pith_short_12","alias_value":"276NIKJDRWXY","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"276NIKJDRWXYIX52","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"276NIKJD","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:c6e2d7bd81d0e71ead874d700ec6026976b9a8f98300a5a60f7693d3d8b7e2b6","target":"graph","created_at":"2026-05-18T00:51:19Z","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":"The low frequency vibrational spectra of hydrated porous silica are specifically sensitive to the hydrogen bond interactions and provides a wealth of information on the structural and dynamical properties of the water contained in the pores of the matrix. We investigate systematically this spectral region of Vycor porous silica (pore size about 4 nm) for a series of samples at different levels of hydration, from the dry matrix to completely filled pores. The spectra are obtained as the Fourier transforms of time-resolved heterodyne detected optical Kerr effect (HD- OKE) measurements. The compa","authors_text":"Agnese Marcelli, Andrea Taschin, Paolo Bartolini, Renato Torre, Roberto Righini","cross_cats":["physics.chem-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-04-30T13:26:40Z","title":"A comparative study on bulk and nanoconfined water by time-resolved optical Kerr effect spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.7989","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":"sha256:272afb4190eea7d8ea55e5475dd482ccf1e40959b6ef0ab33fca9bb5a43fe920","target":"record","created_at":"2026-05-18T00:51:19Z","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":"9ec7dc567854480a7aaeccb16e74a129c8120fb0f05635720d386c38e1568957","cross_cats_sorted":["physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-04-30T13:26:40Z","title_canon_sha256":"dd968d969734ea479400cf7fa29042442002f088a787f1b7f360728425748d13"},"schema_version":"1.0","source":{"id":"1304.7989","kind":"arxiv","version":1}},"canonical_sha256":"d7fcd429238daf845fba14b0dec88bf5200c16b144a1192d269bd8ef9f6890a0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d7fcd429238daf845fba14b0dec88bf5200c16b144a1192d269bd8ef9f6890a0","first_computed_at":"2026-05-18T00:51:19.466017Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:19.466017Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kkSaiZ2uqi+0hDyv1OIXLujp+nmdmx+jwXakqtdRx/GKsqPLEuJDJQFX0x7fl/lRdnFQaPYJUWSGJRZ5e9s3Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:19.466875Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.7989","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:272afb4190eea7d8ea55e5475dd482ccf1e40959b6ef0ab33fca9bb5a43fe920","sha256:c6e2d7bd81d0e71ead874d700ec6026976b9a8f98300a5a60f7693d3d8b7e2b6"],"state_sha256":"efa2a7b4231e029b7471c810d765c9665b97814a8e8901f657f44803982118cb"}