{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:MDRYXZTJ3OPNS42BGUWZOZUXGV","short_pith_number":"pith:MDRYXZTJ","canonical_record":{"source":{"id":"2204.05616","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"hep-ex","submitted_at":"2022-04-12T08:24:51Z","cross_cats_sorted":[],"title_canon_sha256":"fab0e91348f0c820b7e22d2fedb22f4c0c74d61d9176e363bb3959eb98ac0635","abstract_canon_sha256":"6171ea5c4ebfd08e8f9367fe7b4e1e49f095b891ebda87bfdae82317a5e31d9c"},"schema_version":"1.0"},"canonical_sha256":"60e38be669db9ed97341352d9766973559e87a51317322560a273b18c6bd1866","source":{"kind":"arxiv","id":"2204.05616","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.05616","created_at":"2026-07-05T04:14:00Z"},{"alias_kind":"arxiv_version","alias_value":"2204.05616v1","created_at":"2026-07-05T04:14:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.05616","created_at":"2026-07-05T04:14:00Z"},{"alias_kind":"pith_short_12","alias_value":"MDRYXZTJ3OPN","created_at":"2026-07-05T04:14:00Z"},{"alias_kind":"pith_short_16","alias_value":"MDRYXZTJ3OPNS42B","created_at":"2026-07-05T04:14:00Z"},{"alias_kind":"pith_short_8","alias_value":"MDRYXZTJ","created_at":"2026-07-05T04:14:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:MDRYXZTJ3OPNS42BGUWZOZUXGV","target":"record","payload":{"canonical_record":{"source":{"id":"2204.05616","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"hep-ex","submitted_at":"2022-04-12T08:24:51Z","cross_cats_sorted":[],"title_canon_sha256":"fab0e91348f0c820b7e22d2fedb22f4c0c74d61d9176e363bb3959eb98ac0635","abstract_canon_sha256":"6171ea5c4ebfd08e8f9367fe7b4e1e49f095b891ebda87bfdae82317a5e31d9c"},"schema_version":"1.0"},"canonical_sha256":"60e38be669db9ed97341352d9766973559e87a51317322560a273b18c6bd1866","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:14:00.207461Z","signature_b64":"fpot7Gh4jQanpFb0KT/typmEmkYRD3CQwS5cavEm+EpXelXV/hATc7UwABShHQt8ZpqwayCq0ExWjQLEQPngAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"60e38be669db9ed97341352d9766973559e87a51317322560a273b18c6bd1866","last_reissued_at":"2026-07-05T04:14:00.207049Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:14:00.207049Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2204.05616","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":"2026-07-05T04:14:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F5VCS1mPUUAo7FcjUvDToHN6mtodhJaj16oSX5JryVlLgLUyM4y6uQMmJCwmycCSGucgno2Cm/RTh8WmsZXYCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T04:37:22.843926Z"},"content_sha256":"2b844493166e0fdbd8c4c0d1747f1680b514c708349f2ecffbb492d3d4cefb52","schema_version":"1.0","event_id":"sha256:2b844493166e0fdbd8c4c0d1747f1680b514c708349f2ecffbb492d3d4cefb52"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:MDRYXZTJ3OPNS42BGUWZOZUXGV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The PADME beam line Monte Carlo simulation","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Frankenthal, A. Ghigo, A.P. Caricato, A. Variola, B. Buonomo, C. Di Giulio, C. Taruggi, D. Domenici, D. Tagnani, E. Leonardi, E. Long, E. Spiriti, E. Vilucchi, F. Bossi, F. Ferrarotto, F. Iazzi, F. Oliva, F. Pinna, G. Chiodini, G.C. Organtini, G. Finocchiaro, G. Georgiev, G. Piperno, I. Oceano, I. Sarra, L.G Foggetta, M. Garattini, M. Martino, M. Raggi, P. Branchini, P. Gianotti, P. Valente, R. de Sangro, R. Simeonov, S. Fiore, S. Ivanov, S. Spagnolo, Sv. Ivanov, T. Spadaro, V. Capirossi, V. Kozhuharov","submitted_at":"2022-04-12T08:24:51Z","abstract_excerpt":"The PADME experiment at the DA$\\Phi$NE Beam-Test Facility (BTF) of the INFN Laboratory of Frascati is designed to search for invisible decays of dark sector particles produced in electron-positron annihilation events with a positron beam and a thin fixed target, by measuring the missing mass of single-photon final states. The presence of backgrounds originating from beam halo particles can significantly reduce the sensitivity of the experiment. To thoroughly understand the origin of the beam background contribution, a detailed Geant4-based Monte Carlo simulation has been developed, containing "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.05616","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/2204.05616/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":"2026-07-05T04:14:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HHd1g8QfBUXI+hHOiLxf2UfRefPS726r6qSueH2rtGFatS6UbJOPBIU+D7+XJi6sblEmX/ue8lQKIwtZJWH5BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T04:37:22.844538Z"},"content_sha256":"4789392be3ff9b0e51cb0cbfa5f3f31243c2054ab53aab1eb991fe250c846920","schema_version":"1.0","event_id":"sha256:4789392be3ff9b0e51cb0cbfa5f3f31243c2054ab53aab1eb991fe250c846920"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MDRYXZTJ3OPNS42BGUWZOZUXGV/bundle.json","state_url":"https://pith.science/pith/MDRYXZTJ3OPNS42BGUWZOZUXGV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MDRYXZTJ3OPNS42BGUWZOZUXGV/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":"2026-08-11T04:37:22Z","links":{"resolver":"https://pith.science/pith/MDRYXZTJ3OPNS42BGUWZOZUXGV","bundle":"https://pith.science/pith/MDRYXZTJ3OPNS42BGUWZOZUXGV/bundle.json","state":"https://pith.science/pith/MDRYXZTJ3OPNS42BGUWZOZUXGV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MDRYXZTJ3OPNS42BGUWZOZUXGV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:MDRYXZTJ3OPNS42BGUWZOZUXGV","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":"6171ea5c4ebfd08e8f9367fe7b4e1e49f095b891ebda87bfdae82317a5e31d9c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"hep-ex","submitted_at":"2022-04-12T08:24:51Z","title_canon_sha256":"fab0e91348f0c820b7e22d2fedb22f4c0c74d61d9176e363bb3959eb98ac0635"},"schema_version":"1.0","source":{"id":"2204.05616","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.05616","created_at":"2026-07-05T04:14:00Z"},{"alias_kind":"arxiv_version","alias_value":"2204.05616v1","created_at":"2026-07-05T04:14:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.05616","created_at":"2026-07-05T04:14:00Z"},{"alias_kind":"pith_short_12","alias_value":"MDRYXZTJ3OPN","created_at":"2026-07-05T04:14:00Z"},{"alias_kind":"pith_short_16","alias_value":"MDRYXZTJ3OPNS42B","created_at":"2026-07-05T04:14:00Z"},{"alias_kind":"pith_short_8","alias_value":"MDRYXZTJ","created_at":"2026-07-05T04:14:00Z"}],"graph_snapshots":[{"event_id":"sha256:4789392be3ff9b0e51cb0cbfa5f3f31243c2054ab53aab1eb991fe250c846920","target":"graph","created_at":"2026-07-05T04:14:00Z","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/2204.05616/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The PADME experiment at the DA$\\Phi$NE Beam-Test Facility (BTF) of the INFN Laboratory of Frascati is designed to search for invisible decays of dark sector particles produced in electron-positron annihilation events with a positron beam and a thin fixed target, by measuring the missing mass of single-photon final states. The presence of backgrounds originating from beam halo particles can significantly reduce the sensitivity of the experiment. To thoroughly understand the origin of the beam background contribution, a detailed Geant4-based Monte Carlo simulation has been developed, containing ","authors_text":"A. Frankenthal, A. Ghigo, A.P. Caricato, A. Variola, B. Buonomo, C. Di Giulio, C. Taruggi, D. Domenici, D. Tagnani, E. Leonardi, E. Long, E. Spiriti, E. Vilucchi, F. Bossi, F. Ferrarotto, F. Iazzi, F. Oliva, F. Pinna, G. Chiodini, G.C. Organtini, G. Finocchiaro, G. Georgiev, G. Piperno, I. Oceano, I. Sarra, L.G Foggetta, M. Garattini, M. Martino, M. Raggi, P. Branchini, P. Gianotti, P. Valente, R. de Sangro, R. Simeonov, S. Fiore, S. Ivanov, S. Spagnolo, Sv. Ivanov, T. Spadaro, V. Capirossi, V. Kozhuharov","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"hep-ex","submitted_at":"2022-04-12T08:24:51Z","title":"The PADME beam line Monte Carlo simulation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.05616","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":"sha256:2b844493166e0fdbd8c4c0d1747f1680b514c708349f2ecffbb492d3d4cefb52","target":"record","created_at":"2026-07-05T04:14:00Z","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":"6171ea5c4ebfd08e8f9367fe7b4e1e49f095b891ebda87bfdae82317a5e31d9c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"hep-ex","submitted_at":"2022-04-12T08:24:51Z","title_canon_sha256":"fab0e91348f0c820b7e22d2fedb22f4c0c74d61d9176e363bb3959eb98ac0635"},"schema_version":"1.0","source":{"id":"2204.05616","kind":"arxiv","version":1}},"canonical_sha256":"60e38be669db9ed97341352d9766973559e87a51317322560a273b18c6bd1866","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"60e38be669db9ed97341352d9766973559e87a51317322560a273b18c6bd1866","first_computed_at":"2026-07-05T04:14:00.207049Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:14:00.207049Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fpot7Gh4jQanpFb0KT/typmEmkYRD3CQwS5cavEm+EpXelXV/hATc7UwABShHQt8ZpqwayCq0ExWjQLEQPngAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:14:00.207461Z","signed_message":"canonical_sha256_bytes"},"source_id":"2204.05616","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2b844493166e0fdbd8c4c0d1747f1680b514c708349f2ecffbb492d3d4cefb52","sha256:4789392be3ff9b0e51cb0cbfa5f3f31243c2054ab53aab1eb991fe250c846920"],"state_sha256":"5d08f5cbcaa84bb379cd92a919073d62a084d9dd2e7dac6953444edc8cad4910"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Le9HLuz/rK5+soOUy0l0P4mprTCrb2yvB0w2X9O1EFh6p/GjRramUY4AOPDKElkUeGZQnY0kjZsHHs0kcvqxBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T04:37:22.850922Z","bundle_sha256":"38cacfa9e1ab7f79b407537c3ab16ccf738a1a9a75ab4a9be728f771edf9e97e"}}