{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:XBRSUKCJAWJOSPXC3GR4YHVXF6","short_pith_number":"pith:XBRSUKCJ","canonical_record":{"source":{"id":"2409.19654","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2024-09-29T11:00:19Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"30561a63617d3c476d502083766f3f215bc611b882d82456e8ee02d3ddc1e981","abstract_canon_sha256":"2ca96fa5380f13d52a7538116a945198cf3ffa330c8dc168c18759d152d70585"},"schema_version":"1.0"},"canonical_sha256":"b8632a28490592e93ee2d9a3cc1eb72f99a2f4923cbe550dc2abe01c0f912ad4","source":{"kind":"arxiv","id":"2409.19654","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.19654","created_at":"2026-07-05T09:13:20Z"},{"alias_kind":"arxiv_version","alias_value":"2409.19654v1","created_at":"2026-07-05T09:13:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.19654","created_at":"2026-07-05T09:13:20Z"},{"alias_kind":"pith_short_12","alias_value":"XBRSUKCJAWJO","created_at":"2026-07-05T09:13:20Z"},{"alias_kind":"pith_short_16","alias_value":"XBRSUKCJAWJOSPXC","created_at":"2026-07-05T09:13:20Z"},{"alias_kind":"pith_short_8","alias_value":"XBRSUKCJ","created_at":"2026-07-05T09:13:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:XBRSUKCJAWJOSPXC3GR4YHVXF6","target":"record","payload":{"canonical_record":{"source":{"id":"2409.19654","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2024-09-29T11:00:19Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"30561a63617d3c476d502083766f3f215bc611b882d82456e8ee02d3ddc1e981","abstract_canon_sha256":"2ca96fa5380f13d52a7538116a945198cf3ffa330c8dc168c18759d152d70585"},"schema_version":"1.0"},"canonical_sha256":"b8632a28490592e93ee2d9a3cc1eb72f99a2f4923cbe550dc2abe01c0f912ad4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:13:20.351294Z","signature_b64":"di8E/2N/sGCDlnByyhduZ4EK9UMScHOqBe99nW6kv2d1HcgvRlz33M79Wa8zSuxYpADsuSqFs1JwfTPydkvFDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b8632a28490592e93ee2d9a3cc1eb72f99a2f4923cbe550dc2abe01c0f912ad4","last_reissued_at":"2026-07-05T09:13:20.350840Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:13:20.350840Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2409.19654","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":"2026-07-05T09:13:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tCLJq7Xa1bHwltDFThgBSrF/FzYr8TZdYrZiEzToVDjfeUPQllBgGVUJmmMFv5DkzBd4LhfgF9VKYSpyJHTQDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T20:55:51.122041Z"},"content_sha256":"81743f099a78ae286d6486e02572b562118cc356e956eac1f67ea754ff477e27","schema_version":"1.0","event_id":"sha256:81743f099a78ae286d6486e02572b562118cc356e956eac1f67ea754ff477e27"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:XBRSUKCJAWJOSPXC3GR4YHVXF6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Longitudinal structure optimization for the high density electromagnetic calorimeter","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"hep-ex","authors_text":"Aleksander Filip \\.Zarnecki, Kamil Zembaczy\\'nski, Oleksandr Borysov, Shan Huang","submitted_at":"2024-09-29T11:00:19Z","abstract_excerpt":"High density electromagnetic sandwich calorimeters with high readout granularity are considered for many future collider and fix-target experiments. Optimization of the calorimeter structure from the point of view of the electromagnetic shower energy, position and direction measurement is one of the key aspects of the design. However, mostly uniform sampling structures were considered so far. We developed a semi-analytical approach to study calorimeter performance based on the detailed Geant 4 simulation, which also allows to compare the expected performance for different non-uniform longitudi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.19654","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/2409.19654/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":"2026-07-05T09:13:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y8UPi7E+wmRXchNMwCppjQFcGnjhbuBzOhWsG9f112b/iTbjGMgKgOUiNokduytsf6L/7HpZ6gwpfMoAW1y8Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T20:55:51.122529Z"},"content_sha256":"fe454236f9d20ee3513f2cca73131715134b643e391a82f616e9039abef01e98","schema_version":"1.0","event_id":"sha256:fe454236f9d20ee3513f2cca73131715134b643e391a82f616e9039abef01e98"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XBRSUKCJAWJOSPXC3GR4YHVXF6/bundle.json","state_url":"https://pith.science/pith/XBRSUKCJAWJOSPXC3GR4YHVXF6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XBRSUKCJAWJOSPXC3GR4YHVXF6/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":"2026-08-03T20:55:51Z","links":{"resolver":"https://pith.science/pith/XBRSUKCJAWJOSPXC3GR4YHVXF6","bundle":"https://pith.science/pith/XBRSUKCJAWJOSPXC3GR4YHVXF6/bundle.json","state":"https://pith.science/pith/XBRSUKCJAWJOSPXC3GR4YHVXF6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XBRSUKCJAWJOSPXC3GR4YHVXF6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:XBRSUKCJAWJOSPXC3GR4YHVXF6","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":"2ca96fa5380f13d52a7538116a945198cf3ffa330c8dc168c18759d152d70585","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2024-09-29T11:00:19Z","title_canon_sha256":"30561a63617d3c476d502083766f3f215bc611b882d82456e8ee02d3ddc1e981"},"schema_version":"1.0","source":{"id":"2409.19654","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.19654","created_at":"2026-07-05T09:13:20Z"},{"alias_kind":"arxiv_version","alias_value":"2409.19654v1","created_at":"2026-07-05T09:13:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.19654","created_at":"2026-07-05T09:13:20Z"},{"alias_kind":"pith_short_12","alias_value":"XBRSUKCJAWJO","created_at":"2026-07-05T09:13:20Z"},{"alias_kind":"pith_short_16","alias_value":"XBRSUKCJAWJOSPXC","created_at":"2026-07-05T09:13:20Z"},{"alias_kind":"pith_short_8","alias_value":"XBRSUKCJ","created_at":"2026-07-05T09:13:20Z"}],"graph_snapshots":[{"event_id":"sha256:fe454236f9d20ee3513f2cca73131715134b643e391a82f616e9039abef01e98","target":"graph","created_at":"2026-07-05T09:13:20Z","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/2409.19654/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"High density electromagnetic sandwich calorimeters with high readout granularity are considered for many future collider and fix-target experiments. Optimization of the calorimeter structure from the point of view of the electromagnetic shower energy, position and direction measurement is one of the key aspects of the design. However, mostly uniform sampling structures were considered so far. We developed a semi-analytical approach to study calorimeter performance based on the detailed Geant 4 simulation, which also allows to compare the expected performance for different non-uniform longitudi","authors_text":"Aleksander Filip \\.Zarnecki, Kamil Zembaczy\\'nski, Oleksandr Borysov, Shan Huang","cross_cats":["physics.ins-det"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2024-09-29T11:00:19Z","title":"Longitudinal structure optimization for the high density electromagnetic calorimeter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.19654","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":"sha256:81743f099a78ae286d6486e02572b562118cc356e956eac1f67ea754ff477e27","target":"record","created_at":"2026-07-05T09:13:20Z","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":"2ca96fa5380f13d52a7538116a945198cf3ffa330c8dc168c18759d152d70585","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2024-09-29T11:00:19Z","title_canon_sha256":"30561a63617d3c476d502083766f3f215bc611b882d82456e8ee02d3ddc1e981"},"schema_version":"1.0","source":{"id":"2409.19654","kind":"arxiv","version":1}},"canonical_sha256":"b8632a28490592e93ee2d9a3cc1eb72f99a2f4923cbe550dc2abe01c0f912ad4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b8632a28490592e93ee2d9a3cc1eb72f99a2f4923cbe550dc2abe01c0f912ad4","first_computed_at":"2026-07-05T09:13:20.350840Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:13:20.350840Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"di8E/2N/sGCDlnByyhduZ4EK9UMScHOqBe99nW6kv2d1HcgvRlz33M79Wa8zSuxYpADsuSqFs1JwfTPydkvFDg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:13:20.351294Z","signed_message":"canonical_sha256_bytes"},"source_id":"2409.19654","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:81743f099a78ae286d6486e02572b562118cc356e956eac1f67ea754ff477e27","sha256:fe454236f9d20ee3513f2cca73131715134b643e391a82f616e9039abef01e98"],"state_sha256":"5d82441b206bc23d939c5540411316a6f15d5fc5d1304d4392c5b506379d6c72"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VgIgWelQkd7IrT8qvsbEbqYbeGPnf2J2KsGBju/TWuB2In93n05uqYICxdRUCRp1Kxi8VLCMXezH58PliIwNBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T20:55:51.127483Z","bundle_sha256":"f882521067ce796626876461aa65840b1c5ad5440e74f66d65793218f794967f"}}