{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:EQZYSC7VS6W3O3UZXEN5WYNJUN","short_pith_number":"pith:EQZYSC7V","canonical_record":{"source":{"id":"2608.10143","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2026-08-10T18:59:13Z","cross_cats_sorted":[],"title_canon_sha256":"7758d3693659b867a6bd4c5c55e9f57b697abd8f8a976872fd314f5f33cd5497","abstract_canon_sha256":"b232ae77b605538c7cbe9ab3b5fd47f943a438f328457753be2777c5584edb2d"},"schema_version":"1.0"},"canonical_sha256":"2433890bf597adb76e99b91bdb61a9a37cbcfe6bb13e1f3cc83f2bb8ab7171b2","source":{"kind":"arxiv","id":"2608.10143","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.10143","created_at":"2026-08-12T00:22:54Z"},{"alias_kind":"arxiv_version","alias_value":"2608.10143v1","created_at":"2026-08-12T00:22:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.10143","created_at":"2026-08-12T00:22:54Z"},{"alias_kind":"pith_short_12","alias_value":"EQZYSC7VS6W3","created_at":"2026-08-12T00:22:54Z"},{"alias_kind":"pith_short_16","alias_value":"EQZYSC7VS6W3O3UZ","created_at":"2026-08-12T00:22:54Z"},{"alias_kind":"pith_short_8","alias_value":"EQZYSC7V","created_at":"2026-08-12T00:22:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:EQZYSC7VS6W3O3UZXEN5WYNJUN","target":"record","payload":{"canonical_record":{"source":{"id":"2608.10143","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2026-08-10T18:59:13Z","cross_cats_sorted":[],"title_canon_sha256":"7758d3693659b867a6bd4c5c55e9f57b697abd8f8a976872fd314f5f33cd5497","abstract_canon_sha256":"b232ae77b605538c7cbe9ab3b5fd47f943a438f328457753be2777c5584edb2d"},"schema_version":"1.0"},"canonical_sha256":"2433890bf597adb76e99b91bdb61a9a37cbcfe6bb13e1f3cc83f2bb8ab7171b2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-12T00:22:54.180453Z","signature_b64":"OPTmfeCjk8u7cqXGr19rAvdytqYlT3Q3gmriuGzCwBttfJcgFXyk2KTHLTT385kCD2yy7PYXHwhi1l36eXaDAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2433890bf597adb76e99b91bdb61a9a37cbcfe6bb13e1f3cc83f2bb8ab7171b2","last_reissued_at":"2026-08-12T00:22:54.178820Z","signature_status":"signed_v1","first_computed_at":"2026-08-12T00:22:54.178820Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.10143","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":"2026-08-12T00:22:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"56eJhgclbRYp96H0dy+phK49uXsBtpRD8UDS/xC/S0yXv1ihIECoCyDZlXxPo/fhCEDWK3LvVAm2ISI429n2DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T11:36:05.542134Z"},"content_sha256":"3343d8885f7fe0494a63456b6acab540e9669055fd0ccf522827134ff78877d7","schema_version":"1.0","event_id":"sha256:3343d8885f7fe0494a63456b6acab540e9669055fd0ccf522827134ff78877d7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:EQZYSC7VS6W3O3UZXEN5WYNJUN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Machine learning methods for spectroscopic information recovery under ultrafast photon pileup","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"Jayson R. Vavrek, Thomas D. MacDonald, Yue Shi Lai","submitted_at":"2026-08-10T18:59:13Z","abstract_excerpt":"We present methods for recovering spectroscopic information from multiple concurrent photon interactions that would normally be lost due to pulse pileup. In particular, we focus on machine learning methods to recover information based on spatial (rather than temporal) energy deposition patterns in position-sensitive detectors. We construct two representative problems, namely (1) recovering the fraction of total energy deposition stemming from a monoenergetic signal vs. a smooth background; and (2) recovering the signal multiplicity, i.e., the number of interacting photons, in a pure-source-ter"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.10143","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/2608.10143/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":"2026-08-12T00:22:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+bVy8+zd1i97BeIWitWjWtpY2VV4XexKOGA0cxEnd68Ppt0pNEqzfyQnjTUT76iY9PiM5PiNosMEiJF2IJ4yAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T11:36:05.542675Z"},"content_sha256":"d86e0285000967221594d8947e84326bd71d7376b69e3cda43f50d927c85467e","schema_version":"1.0","event_id":"sha256:d86e0285000967221594d8947e84326bd71d7376b69e3cda43f50d927c85467e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EQZYSC7VS6W3O3UZXEN5WYNJUN/bundle.json","state_url":"https://pith.science/pith/EQZYSC7VS6W3O3UZXEN5WYNJUN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EQZYSC7VS6W3O3UZXEN5WYNJUN/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":"2026-08-15T11:36:05Z","links":{"resolver":"https://pith.science/pith/EQZYSC7VS6W3O3UZXEN5WYNJUN","bundle":"https://pith.science/pith/EQZYSC7VS6W3O3UZXEN5WYNJUN/bundle.json","state":"https://pith.science/pith/EQZYSC7VS6W3O3UZXEN5WYNJUN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EQZYSC7VS6W3O3UZXEN5WYNJUN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:EQZYSC7VS6W3O3UZXEN5WYNJUN","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":"b232ae77b605538c7cbe9ab3b5fd47f943a438f328457753be2777c5584edb2d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2026-08-10T18:59:13Z","title_canon_sha256":"7758d3693659b867a6bd4c5c55e9f57b697abd8f8a976872fd314f5f33cd5497"},"schema_version":"1.0","source":{"id":"2608.10143","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.10143","created_at":"2026-08-12T00:22:54Z"},{"alias_kind":"arxiv_version","alias_value":"2608.10143v1","created_at":"2026-08-12T00:22:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.10143","created_at":"2026-08-12T00:22:54Z"},{"alias_kind":"pith_short_12","alias_value":"EQZYSC7VS6W3","created_at":"2026-08-12T00:22:54Z"},{"alias_kind":"pith_short_16","alias_value":"EQZYSC7VS6W3O3UZ","created_at":"2026-08-12T00:22:54Z"},{"alias_kind":"pith_short_8","alias_value":"EQZYSC7V","created_at":"2026-08-12T00:22:54Z"}],"graph_snapshots":[{"event_id":"sha256:d86e0285000967221594d8947e84326bd71d7376b69e3cda43f50d927c85467e","target":"graph","created_at":"2026-08-12T00:22:54Z","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/2608.10143/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present methods for recovering spectroscopic information from multiple concurrent photon interactions that would normally be lost due to pulse pileup. In particular, we focus on machine learning methods to recover information based on spatial (rather than temporal) energy deposition patterns in position-sensitive detectors. We construct two representative problems, namely (1) recovering the fraction of total energy deposition stemming from a monoenergetic signal vs. a smooth background; and (2) recovering the signal multiplicity, i.e., the number of interacting photons, in a pure-source-ter","authors_text":"Jayson R. Vavrek, Thomas D. MacDonald, Yue Shi Lai","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2026-08-10T18:59:13Z","title":"Machine learning methods for spectroscopic information recovery under ultrafast photon pileup"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.10143","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":"sha256:3343d8885f7fe0494a63456b6acab540e9669055fd0ccf522827134ff78877d7","target":"record","created_at":"2026-08-12T00:22:54Z","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":"b232ae77b605538c7cbe9ab3b5fd47f943a438f328457753be2777c5584edb2d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2026-08-10T18:59:13Z","title_canon_sha256":"7758d3693659b867a6bd4c5c55e9f57b697abd8f8a976872fd314f5f33cd5497"},"schema_version":"1.0","source":{"id":"2608.10143","kind":"arxiv","version":1}},"canonical_sha256":"2433890bf597adb76e99b91bdb61a9a37cbcfe6bb13e1f3cc83f2bb8ab7171b2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2433890bf597adb76e99b91bdb61a9a37cbcfe6bb13e1f3cc83f2bb8ab7171b2","first_computed_at":"2026-08-12T00:22:54.178820Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-12T00:22:54.178820Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OPTmfeCjk8u7cqXGr19rAvdytqYlT3Q3gmriuGzCwBttfJcgFXyk2KTHLTT385kCD2yy7PYXHwhi1l36eXaDAg==","signature_status":"signed_v1","signed_at":"2026-08-12T00:22:54.180453Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.10143","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3343d8885f7fe0494a63456b6acab540e9669055fd0ccf522827134ff78877d7","sha256:d86e0285000967221594d8947e84326bd71d7376b69e3cda43f50d927c85467e"],"state_sha256":"eb89a9470832efa53b63cd56f45c2d70ba28cf566076c1f6cf955b40db43ea5a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vruP3faj7sbpLJLSOs34ocRHQs0KFL1VqNY6K/cBEfd2vwnSmt8Fb23ZqsWlPJEhEZUdk95aBjzFofSIUdLmCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T11:36:05.548717Z","bundle_sha256":"5510ff45d19774a236b298ce674087ac2a8962a75f6e671376498cfbd6523988"}}