{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:Q2WKF5AV5GLL5MBUAOFEQCYP5J","short_pith_number":"pith:Q2WKF5AV","canonical_record":{"source":{"id":"2407.19407","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2024-07-28T05:51:15Z","cross_cats_sorted":["cond-mat.mtrl-sci","cs.LG","math.OC"],"title_canon_sha256":"7604f32e351e3299aa4e296dac38d75d169f411a2c06f08cf764aad43aaa4e7a","abstract_canon_sha256":"7edceed96aab43234763cb518fa91080f98189a67bae957c3246acde63a66f08"},"schema_version":"1.0"},"canonical_sha256":"86aca2f415e996beb034038a480b0fea63c8ffd3bd621b3d89f81bd210130138","source":{"kind":"arxiv","id":"2407.19407","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.19407","created_at":"2026-07-05T08:49:39Z"},{"alias_kind":"arxiv_version","alias_value":"2407.19407v1","created_at":"2026-07-05T08:49:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.19407","created_at":"2026-07-05T08:49:39Z"},{"alias_kind":"pith_short_12","alias_value":"Q2WKF5AV5GLL","created_at":"2026-07-05T08:49:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q2WKF5AV5GLL5MBU","created_at":"2026-07-05T08:49:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q2WKF5AV","created_at":"2026-07-05T08:49:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:Q2WKF5AV5GLL5MBUAOFEQCYP5J","target":"record","payload":{"canonical_record":{"source":{"id":"2407.19407","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2024-07-28T05:51:15Z","cross_cats_sorted":["cond-mat.mtrl-sci","cs.LG","math.OC"],"title_canon_sha256":"7604f32e351e3299aa4e296dac38d75d169f411a2c06f08cf764aad43aaa4e7a","abstract_canon_sha256":"7edceed96aab43234763cb518fa91080f98189a67bae957c3246acde63a66f08"},"schema_version":"1.0"},"canonical_sha256":"86aca2f415e996beb034038a480b0fea63c8ffd3bd621b3d89f81bd210130138","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:49:39.575933Z","signature_b64":"w/nzcDPQrAkBANbsAWLQmdiP/aASprV2OKtyfJbVCs2ODNYVu13+o+wGcxBR+DFllOuwKKvywElwqBc+vN30Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86aca2f415e996beb034038a480b0fea63c8ffd3bd621b3d89f81bd210130138","last_reissued_at":"2026-07-05T08:49:39.575440Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:49:39.575440Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2407.19407","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":"2026-07-05T08:49:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P1L2ZbhMqA2kM0cNR5bpud+/770dGTrBEggVBzPBICVXT5V1DNjpw5FmTT1xKWT21XXpDTcOnsJxjAO6mNOrAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-13T03:32:40.157611Z"},"content_sha256":"24aee6be7dcf35b98010d36bcc4b2a309e85a647c92ce0819621fe0e9c742a30","schema_version":"1.0","event_id":"sha256:24aee6be7dcf35b98010d36bcc4b2a309e85a647c92ce0819621fe0e9c742a30"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:Q2WKF5AV5GLL5MBUAOFEQCYP5J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Near-Isotropic Sub-{\\AA}ngstrom 3D Resolution Phase Contrast Imaging Achieved by End-to-End Ptychographic Electron Tomography","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cs.LG","math.OC"],"primary_cat":"physics.comp-ph","authors_text":"Andrey Romanov, Philipp Pelz, Shengboy You","submitted_at":"2024-07-28T05:51:15Z","abstract_excerpt":"Three-dimensional atomic resolution imaging using transmission electron microscopes is a unique capability that requires challenging experiments. Linear electron tomography methods are limited by the missing wedge effect, requiring a high tilt range. Multislice ptychography can achieve deep sub-{\\AA}ngstrom resolution in the transverse direction, but the depth resolution is limited to 2 to 3 nanometers. In this paper, we propose and demonstrate an end-to-end approach to reconstructing the electrostatic potential volume of the sample directly from the 4D-STEM datasets. End-to-end multi-slice pt"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.19407","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/2407.19407/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":"2026-07-05T08:49:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RfA23abii02f7+5vP3/p3JMMi96zebiCMzmnDBJMZWsbchJaiTbZPt1wwGQQZw3CoBKxneXcoY+BP3alp5dMDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-13T03:32:40.158017Z"},"content_sha256":"a59cbdb486017fa81f4f8af7153468268187ee2f7a0dda893551f238d004dc22","schema_version":"1.0","event_id":"sha256:a59cbdb486017fa81f4f8af7153468268187ee2f7a0dda893551f238d004dc22"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q2WKF5AV5GLL5MBUAOFEQCYP5J/bundle.json","state_url":"https://pith.science/pith/Q2WKF5AV5GLL5MBUAOFEQCYP5J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q2WKF5AV5GLL5MBUAOFEQCYP5J/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":"2026-07-13T03:32:40Z","links":{"resolver":"https://pith.science/pith/Q2WKF5AV5GLL5MBUAOFEQCYP5J","bundle":"https://pith.science/pith/Q2WKF5AV5GLL5MBUAOFEQCYP5J/bundle.json","state":"https://pith.science/pith/Q2WKF5AV5GLL5MBUAOFEQCYP5J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q2WKF5AV5GLL5MBUAOFEQCYP5J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:Q2WKF5AV5GLL5MBUAOFEQCYP5J","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":"7edceed96aab43234763cb518fa91080f98189a67bae957c3246acde63a66f08","cross_cats_sorted":["cond-mat.mtrl-sci","cs.LG","math.OC"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2024-07-28T05:51:15Z","title_canon_sha256":"7604f32e351e3299aa4e296dac38d75d169f411a2c06f08cf764aad43aaa4e7a"},"schema_version":"1.0","source":{"id":"2407.19407","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.19407","created_at":"2026-07-05T08:49:39Z"},{"alias_kind":"arxiv_version","alias_value":"2407.19407v1","created_at":"2026-07-05T08:49:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.19407","created_at":"2026-07-05T08:49:39Z"},{"alias_kind":"pith_short_12","alias_value":"Q2WKF5AV5GLL","created_at":"2026-07-05T08:49:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q2WKF5AV5GLL5MBU","created_at":"2026-07-05T08:49:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q2WKF5AV","created_at":"2026-07-05T08:49:39Z"}],"graph_snapshots":[{"event_id":"sha256:a59cbdb486017fa81f4f8af7153468268187ee2f7a0dda893551f238d004dc22","target":"graph","created_at":"2026-07-05T08:49:39Z","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/2407.19407/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Three-dimensional atomic resolution imaging using transmission electron microscopes is a unique capability that requires challenging experiments. Linear electron tomography methods are limited by the missing wedge effect, requiring a high tilt range. Multislice ptychography can achieve deep sub-{\\AA}ngstrom resolution in the transverse direction, but the depth resolution is limited to 2 to 3 nanometers. In this paper, we propose and demonstrate an end-to-end approach to reconstructing the electrostatic potential volume of the sample directly from the 4D-STEM datasets. End-to-end multi-slice pt","authors_text":"Andrey Romanov, Philipp Pelz, Shengboy You","cross_cats":["cond-mat.mtrl-sci","cs.LG","math.OC"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2024-07-28T05:51:15Z","title":"Near-Isotropic Sub-{\\AA}ngstrom 3D Resolution Phase Contrast Imaging Achieved by End-to-End Ptychographic Electron Tomography"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.19407","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":"sha256:24aee6be7dcf35b98010d36bcc4b2a309e85a647c92ce0819621fe0e9c742a30","target":"record","created_at":"2026-07-05T08:49:39Z","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":"7edceed96aab43234763cb518fa91080f98189a67bae957c3246acde63a66f08","cross_cats_sorted":["cond-mat.mtrl-sci","cs.LG","math.OC"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2024-07-28T05:51:15Z","title_canon_sha256":"7604f32e351e3299aa4e296dac38d75d169f411a2c06f08cf764aad43aaa4e7a"},"schema_version":"1.0","source":{"id":"2407.19407","kind":"arxiv","version":1}},"canonical_sha256":"86aca2f415e996beb034038a480b0fea63c8ffd3bd621b3d89f81bd210130138","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"86aca2f415e996beb034038a480b0fea63c8ffd3bd621b3d89f81bd210130138","first_computed_at":"2026-07-05T08:49:39.575440Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:49:39.575440Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"w/nzcDPQrAkBANbsAWLQmdiP/aASprV2OKtyfJbVCs2ODNYVu13+o+wGcxBR+DFllOuwKKvywElwqBc+vN30Dg==","signature_status":"signed_v1","signed_at":"2026-07-05T08:49:39.575933Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.19407","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:24aee6be7dcf35b98010d36bcc4b2a309e85a647c92ce0819621fe0e9c742a30","sha256:a59cbdb486017fa81f4f8af7153468268187ee2f7a0dda893551f238d004dc22"],"state_sha256":"8426460adabda5a02ff2ecd6cf05a0a3709e1a68496423254bd87996506d86e7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TmdYb3I9W320WTQ57KyDj04eedDfBJEVpML/jy7TmpAWvpo+alLVNcr2pNwxSxe7R25MUogQ6EkWW+MOmrJzDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-13T03:32:40.161362Z","bundle_sha256":"b8c5ded89f4af0dd4263ce157fdf17807ac7afb2f34bd39871b1b0d5fdc58669"}}