{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:TIIMF3XBK2EUBMNXQS3D5ADKI5","short_pith_number":"pith:TIIMF3XB","schema_version":"1.0","canonical_sha256":"9a10c2eee1568940b1b784b63e806a474aedcf61f152973ae284e2494552263b","source":{"kind":"arxiv","id":"2502.11794","version":1},"attestation_state":"computed","paper":{"title":"Improving electron tomography of mesoporous silica by Ga intrusion","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Alexander G\\\"otz, Alexander Kichigin, Benjamin Apeleo Zubiri, Dominik Drobek, Erdmann Spiecker, Jakob S\\\"ollner, Johannes B\\\"ohmer, Johannes Will, Matthias Thommes, Mingjian Wu, Moritz Buwen, Nora Vorlaufer, Peter Felfer, Thomas Przybilla","submitted_at":"2025-02-17T13:33:21Z","abstract_excerpt":"Electron tomography (ET) offers nanoscale 3D characterization of mesoporous materials but is often limited by their low scattering contrast. Here, we introduce a gallium (Ga) intrusion strategy for mesoporous silica that dramatically improves imaging contrast - a key benefit that enables more accurate 3D reconstructions. By infiltrating Ga through a modified mercury intrusion porosimetry process, the high-angle annular dark-field (HAADF) STEM signal is enhanced by 5 times, resulting in a 34% improvement in reconstruction resolution and a 49% enhancement in interface sharpness. In addition, the"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2502.11794","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-02-17T13:33:21Z","cross_cats_sorted":[],"title_canon_sha256":"ad82806a065d2a7b2101b11e1c20a4ebf0e78a1b6f7adeb287f13f0c82dbd806","abstract_canon_sha256":"214924d4cb3a698ead5674852c00f491d2b127e2dc95584946a5c2555e41f9f1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:15:34.308673Z","signature_b64":"c42TtFsnvTMSiAOPdIRAePiErkLEm+binMegKNG7PYjZORYPZiovRmkZ0+iqC5nQaHM96amiIPmxjkULx4aFDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9a10c2eee1568940b1b784b63e806a474aedcf61f152973ae284e2494552263b","last_reissued_at":"2026-07-05T10:15:34.308136Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:15:34.308136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Improving electron tomography of mesoporous silica by Ga intrusion","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Alexander G\\\"otz, Alexander Kichigin, Benjamin Apeleo Zubiri, Dominik Drobek, Erdmann Spiecker, Jakob S\\\"ollner, Johannes B\\\"ohmer, Johannes Will, Matthias Thommes, Mingjian Wu, Moritz Buwen, Nora Vorlaufer, Peter Felfer, Thomas Przybilla","submitted_at":"2025-02-17T13:33:21Z","abstract_excerpt":"Electron tomography (ET) offers nanoscale 3D characterization of mesoporous materials but is often limited by their low scattering contrast. Here, we introduce a gallium (Ga) intrusion strategy for mesoporous silica that dramatically improves imaging contrast - a key benefit that enables more accurate 3D reconstructions. By infiltrating Ga through a modified mercury intrusion porosimetry process, the high-angle annular dark-field (HAADF) STEM signal is enhanced by 5 times, resulting in a 34% improvement in reconstruction resolution and a 49% enhancement in interface sharpness. In addition, the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.11794","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/2502.11794/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2502.11794","created_at":"2026-07-05T10:15:34.308210+00:00"},{"alias_kind":"arxiv_version","alias_value":"2502.11794v1","created_at":"2026-07-05T10:15:34.308210+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.11794","created_at":"2026-07-05T10:15:34.308210+00:00"},{"alias_kind":"pith_short_12","alias_value":"TIIMF3XBK2EU","created_at":"2026-07-05T10:15:34.308210+00:00"},{"alias_kind":"pith_short_16","alias_value":"TIIMF3XBK2EUBMNX","created_at":"2026-07-05T10:15:34.308210+00:00"},{"alias_kind":"pith_short_8","alias_value":"TIIMF3XB","created_at":"2026-07-05T10:15:34.308210+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/TIIMF3XBK2EUBMNXQS3D5ADKI5","json":"https://pith.science/pith/TIIMF3XBK2EUBMNXQS3D5ADKI5.json","graph_json":"https://pith.science/api/pith-number/TIIMF3XBK2EUBMNXQS3D5ADKI5/graph.json","events_json":"https://pith.science/api/pith-number/TIIMF3XBK2EUBMNXQS3D5ADKI5/events.json","paper":"https://pith.science/paper/TIIMF3XB"},"agent_actions":{"view_html":"https://pith.science/pith/TIIMF3XBK2EUBMNXQS3D5ADKI5","download_json":"https://pith.science/pith/TIIMF3XBK2EUBMNXQS3D5ADKI5.json","view_paper":"https://pith.science/paper/TIIMF3XB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2502.11794&json=true","fetch_graph":"https://pith.science/api/pith-number/TIIMF3XBK2EUBMNXQS3D5ADKI5/graph.json","fetch_events":"https://pith.science/api/pith-number/TIIMF3XBK2EUBMNXQS3D5ADKI5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TIIMF3XBK2EUBMNXQS3D5ADKI5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TIIMF3XBK2EUBMNXQS3D5ADKI5/action/storage_attestation","attest_author":"https://pith.science/pith/TIIMF3XBK2EUBMNXQS3D5ADKI5/action/author_attestation","sign_citation":"https://pith.science/pith/TIIMF3XBK2EUBMNXQS3D5ADKI5/action/citation_signature","submit_replication":"https://pith.science/pith/TIIMF3XBK2EUBMNXQS3D5ADKI5/action/replication_record"}},"created_at":"2026-07-05T10:15:34.308210+00:00","updated_at":"2026-07-05T10:15:34.308210+00:00"}