{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:YJ4A5DYPYBAZT4SDRGR7HEDRBT","short_pith_number":"pith:YJ4A5DYP","canonical_record":{"source":{"id":"2407.12224","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-07-17T00:28:51Z","cross_cats_sorted":["physics.acc-ph"],"title_canon_sha256":"39d355caca688ba2284a83779d33a2729fc2d50098a261ff504f5a99894a00ff","abstract_canon_sha256":"38526a6750d1bf66670451b520bcf39798b7bb04000ac5577db94fd733121091"},"schema_version":"1.0"},"canonical_sha256":"c2780e8f0fc04199f24389a3f390710ce968973960f66a0aeebd8da8509d219a","source":{"kind":"arxiv","id":"2407.12224","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.12224","created_at":"2026-07-05T08:45:01Z"},{"alias_kind":"arxiv_version","alias_value":"2407.12224v1","created_at":"2026-07-05T08:45:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.12224","created_at":"2026-07-05T08:45:01Z"},{"alias_kind":"pith_short_12","alias_value":"YJ4A5DYPYBAZ","created_at":"2026-07-05T08:45:01Z"},{"alias_kind":"pith_short_16","alias_value":"YJ4A5DYPYBAZT4SD","created_at":"2026-07-05T08:45:01Z"},{"alias_kind":"pith_short_8","alias_value":"YJ4A5DYP","created_at":"2026-07-05T08:45:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:YJ4A5DYPYBAZT4SDRGR7HEDRBT","target":"record","payload":{"canonical_record":{"source":{"id":"2407.12224","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-07-17T00:28:51Z","cross_cats_sorted":["physics.acc-ph"],"title_canon_sha256":"39d355caca688ba2284a83779d33a2729fc2d50098a261ff504f5a99894a00ff","abstract_canon_sha256":"38526a6750d1bf66670451b520bcf39798b7bb04000ac5577db94fd733121091"},"schema_version":"1.0"},"canonical_sha256":"c2780e8f0fc04199f24389a3f390710ce968973960f66a0aeebd8da8509d219a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:45:01.507615Z","signature_b64":"wuKwSYH2hETWEWMaBgaohJpXagxN90Jci8r+EgGijOcOoHqI6WsrFhTB/B3XP9+5506/qIMwCyhJalx/Q0XgDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c2780e8f0fc04199f24389a3f390710ce968973960f66a0aeebd8da8509d219a","last_reissued_at":"2026-07-05T08:45:01.507182Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:45:01.507182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2407.12224","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":"2026-07-05T08:45:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SvNpE2pVYiDpUEHRzSInYewD9ePmj53T1S0qXPZ4NlygVsZHH6y0N1calXo5yikIdtY4lRdq/u4waeqzpMcRDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T01:16:13.969008Z"},"content_sha256":"9af047d4edde3316538bdb275e51157c684d68365a64c8eb0022ef521092ec65","schema_version":"1.0","event_id":"sha256:9af047d4edde3316538bdb275e51157c684d68365a64c8eb0022ef521092ec65"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:YJ4A5DYPYBAZT4SDRGR7HEDRBT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A structural analysis of ordered Cs$_{3}$Sb films grown on single crystal graphene and silicon carbide substrates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.acc-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Galdi, C. Pennington, E. M. Echeverria, J. Maxson, J. Smedley, K. Evans-Lutterodt, M. Gaowei, P. Saha, R.M. Tromp, S.J. van der Molen, S. Karkare, T. Juffmann, W.G. Stam","submitted_at":"2024-07-17T00:28:51Z","abstract_excerpt":"Alkali antimonides are well established as high efficiency, low intrinsic emittance photocathodes for accelerators and photon detectors. However, conventionally grown alkali antimonide films are polycrystalline with surface disorder and roughness that can limit achievable beam brightness. Ordering the crystalline structure of alkali antimonides has the potential to deliver higher brightness electron beams by reducing surface disorder and enabling the engineering of material properties at the level of atomic layers. In this report, we demonstrate the growth of ordered Cs$_{3}$Sb films on single"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.12224","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/2407.12224/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":"2026-07-05T08:45:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CgQfAfC7UQuphpjHNH1P7sO2399aWYnDaOdxCeQKNt3fhR9Jeem8zkFUqnhWLD2qKavYckqytFBMDHr/MQAAAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T01:16:13.969506Z"},"content_sha256":"90951c9a5c0b9845e1a7b4a0b757a7de3bb6594c1937d3d2832281bd726a5010","schema_version":"1.0","event_id":"sha256:90951c9a5c0b9845e1a7b4a0b757a7de3bb6594c1937d3d2832281bd726a5010"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YJ4A5DYPYBAZT4SDRGR7HEDRBT/bundle.json","state_url":"https://pith.science/pith/YJ4A5DYPYBAZT4SDRGR7HEDRBT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YJ4A5DYPYBAZT4SDRGR7HEDRBT/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":"2026-08-08T01:16:13Z","links":{"resolver":"https://pith.science/pith/YJ4A5DYPYBAZT4SDRGR7HEDRBT","bundle":"https://pith.science/pith/YJ4A5DYPYBAZT4SDRGR7HEDRBT/bundle.json","state":"https://pith.science/pith/YJ4A5DYPYBAZT4SDRGR7HEDRBT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YJ4A5DYPYBAZT4SDRGR7HEDRBT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:YJ4A5DYPYBAZT4SDRGR7HEDRBT","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":"38526a6750d1bf66670451b520bcf39798b7bb04000ac5577db94fd733121091","cross_cats_sorted":["physics.acc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-07-17T00:28:51Z","title_canon_sha256":"39d355caca688ba2284a83779d33a2729fc2d50098a261ff504f5a99894a00ff"},"schema_version":"1.0","source":{"id":"2407.12224","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.12224","created_at":"2026-07-05T08:45:01Z"},{"alias_kind":"arxiv_version","alias_value":"2407.12224v1","created_at":"2026-07-05T08:45:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.12224","created_at":"2026-07-05T08:45:01Z"},{"alias_kind":"pith_short_12","alias_value":"YJ4A5DYPYBAZ","created_at":"2026-07-05T08:45:01Z"},{"alias_kind":"pith_short_16","alias_value":"YJ4A5DYPYBAZT4SD","created_at":"2026-07-05T08:45:01Z"},{"alias_kind":"pith_short_8","alias_value":"YJ4A5DYP","created_at":"2026-07-05T08:45:01Z"}],"graph_snapshots":[{"event_id":"sha256:90951c9a5c0b9845e1a7b4a0b757a7de3bb6594c1937d3d2832281bd726a5010","target":"graph","created_at":"2026-07-05T08:45:01Z","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/2407.12224/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Alkali antimonides are well established as high efficiency, low intrinsic emittance photocathodes for accelerators and photon detectors. However, conventionally grown alkali antimonide films are polycrystalline with surface disorder and roughness that can limit achievable beam brightness. Ordering the crystalline structure of alkali antimonides has the potential to deliver higher brightness electron beams by reducing surface disorder and enabling the engineering of material properties at the level of atomic layers. In this report, we demonstrate the growth of ordered Cs$_{3}$Sb films on single","authors_text":"A. Galdi, C. Pennington, E. M. Echeverria, J. Maxson, J. Smedley, K. Evans-Lutterodt, M. Gaowei, P. Saha, R.M. Tromp, S.J. van der Molen, S. Karkare, T. Juffmann, W.G. Stam","cross_cats":["physics.acc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-07-17T00:28:51Z","title":"A structural analysis of ordered Cs$_{3}$Sb films grown on single crystal graphene and silicon carbide substrates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.12224","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":"sha256:9af047d4edde3316538bdb275e51157c684d68365a64c8eb0022ef521092ec65","target":"record","created_at":"2026-07-05T08:45:01Z","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":"38526a6750d1bf66670451b520bcf39798b7bb04000ac5577db94fd733121091","cross_cats_sorted":["physics.acc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-07-17T00:28:51Z","title_canon_sha256":"39d355caca688ba2284a83779d33a2729fc2d50098a261ff504f5a99894a00ff"},"schema_version":"1.0","source":{"id":"2407.12224","kind":"arxiv","version":1}},"canonical_sha256":"c2780e8f0fc04199f24389a3f390710ce968973960f66a0aeebd8da8509d219a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c2780e8f0fc04199f24389a3f390710ce968973960f66a0aeebd8da8509d219a","first_computed_at":"2026-07-05T08:45:01.507182Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:45:01.507182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wuKwSYH2hETWEWMaBgaohJpXagxN90Jci8r+EgGijOcOoHqI6WsrFhTB/B3XP9+5506/qIMwCyhJalx/Q0XgDA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:45:01.507615Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.12224","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9af047d4edde3316538bdb275e51157c684d68365a64c8eb0022ef521092ec65","sha256:90951c9a5c0b9845e1a7b4a0b757a7de3bb6594c1937d3d2832281bd726a5010"],"state_sha256":"868ddd33c6ec0179b0fb2f1c68c6cebdcb6330a5494a77a47fd4067d73f400f6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y8tM+9KnEvZg6UK7Kz6pZKBNVt/1dVboNY13/DoF9PvDYUW8IWxJpbnYf7UemnueBcN5h2tbiMCLfEdzoxqMDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T01:16:13.975099Z","bundle_sha256":"bdef4a5bb3ce998b02cce0a3d47ee79f0d5b4782ebbb1e5deacc4762b05be5a1"}}