{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:724ZLMUZRJPPH6XTNHCWET2DHM","short_pith_number":"pith:724ZLMUZ","canonical_record":{"source":{"id":"2604.02272","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2026-04-02T17:04:25Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"09d1399c2589a44922ca858f1f94cf501304ce9b6a9515167f69d1444ff2c6ff","abstract_canon_sha256":"23f7a69f577a654f9a64bb84e6e52d2f773108228383d7f48fe673ec2a19f5a4"},"schema_version":"1.0"},"canonical_sha256":"feb995b2998a5ef3faf369c5624f433b39fe173d8a81f990009aed5bd3ebc345","source":{"kind":"arxiv","id":"2604.02272","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2604.02272","created_at":"2026-06-09T01:05:16Z"},{"alias_kind":"arxiv_version","alias_value":"2604.02272v2","created_at":"2026-06-09T01:05:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2604.02272","created_at":"2026-06-09T01:05:16Z"},{"alias_kind":"pith_short_12","alias_value":"724ZLMUZRJPP","created_at":"2026-06-09T01:05:16Z"},{"alias_kind":"pith_short_16","alias_value":"724ZLMUZRJPPH6XT","created_at":"2026-06-09T01:05:16Z"},{"alias_kind":"pith_short_8","alias_value":"724ZLMUZ","created_at":"2026-06-09T01:05:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:724ZLMUZRJPPH6XTNHCWET2DHM","target":"record","payload":{"canonical_record":{"source":{"id":"2604.02272","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2026-04-02T17:04:25Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"09d1399c2589a44922ca858f1f94cf501304ce9b6a9515167f69d1444ff2c6ff","abstract_canon_sha256":"23f7a69f577a654f9a64bb84e6e52d2f773108228383d7f48fe673ec2a19f5a4"},"schema_version":"1.0"},"canonical_sha256":"feb995b2998a5ef3faf369c5624f433b39fe173d8a81f990009aed5bd3ebc345","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-09T01:05:16.754969Z","signature_b64":"iIIbryM1yliVJryASphU4F6HAKvnF0kfUXIdDFMEUxgiGz9T1s8CsyQU3R+bgko75csng4bFpGYbgZBaqrX8Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"feb995b2998a5ef3faf369c5624f433b39fe173d8a81f990009aed5bd3ebc345","last_reissued_at":"2026-06-09T01:05:16.754395Z","signature_status":"signed_v1","first_computed_at":"2026-06-09T01:05:16.754395Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2604.02272","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-09T01:05:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5zH8FhDzlpfqhUcy5hIKr+X57ucKkXuBIZ7KTP2dV+j0hrO26atcUCaY7EjgQ3op1SS6Rdc6zfbVO2GYTZhlCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T03:26:30.064491Z"},"content_sha256":"198020d635a0df5019e1bc48d4dd2dfb955fb1912ed7715a724fd44d4ef93f59","schema_version":"1.0","event_id":"sha256:198020d635a0df5019e1bc48d4dd2dfb955fb1912ed7715a724fd44d4ef93f59"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:724ZLMUZRJPPH6XTNHCWET2DHM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"X-ray Response of the Fully-Depleted, p-Channel SiSeRO-CCD","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"physics.ins-det","authors_text":"Chris Leitz, Claudio Chavez, Joseph Noonan, Juan Estrada, Julian Cuevas-Zepeda, Kevan Donlon, Miguel Sofo-Haro, Nathan Saffold, Steve Holland","submitted_at":"2026-04-02T17:04:25Z","abstract_excerpt":"We present an X-ray characterization of a fully depleted, 725 $\\mu$m thick p-channel SiSeRO-CCD. Measurements with a $^{55}$Fe source yield an energy resolution of $54 \\pm 0.9$ eV ($14.6 \\pm 0.25 e^{-}$) at 5.9 keV for single-pixel events, indicating that the SiSeRO amplifier preserves the intrinsic charge resolution of the CCD under multi-sample non-destructive readout. Characterization with a $^{241}$Am source extends the response to higher-energy photons, with reconstructed spectral features observed between 9-26 keV and the 59.5 keV $\\gamma$ emission. These measurements, together with a mu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2604.02272","kind":"arxiv","version":2},"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/2604.02272/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":"2026-06-09T01:05:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QWYcKeVviEB2+/F5E/hnwIopuJVPSiPj5yRqwmnJMgW9yEJn69YVBC4GT+JYGkb1OpZrleOjG7QQZKgVxkCCDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T03:26:30.064856Z"},"content_sha256":"b15dd3b04e33bc08c20738de9707c81b604eb9bf6094861159b09f1176c480c9","schema_version":"1.0","event_id":"sha256:b15dd3b04e33bc08c20738de9707c81b604eb9bf6094861159b09f1176c480c9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/724ZLMUZRJPPH6XTNHCWET2DHM/bundle.json","state_url":"https://pith.science/pith/724ZLMUZRJPPH6XTNHCWET2DHM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/724ZLMUZRJPPH6XTNHCWET2DHM/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":"2026-06-28T03:26:30Z","links":{"resolver":"https://pith.science/pith/724ZLMUZRJPPH6XTNHCWET2DHM","bundle":"https://pith.science/pith/724ZLMUZRJPPH6XTNHCWET2DHM/bundle.json","state":"https://pith.science/pith/724ZLMUZRJPPH6XTNHCWET2DHM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/724ZLMUZRJPPH6XTNHCWET2DHM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:724ZLMUZRJPPH6XTNHCWET2DHM","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":"23f7a69f577a654f9a64bb84e6e52d2f773108228383d7f48fe673ec2a19f5a4","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2026-04-02T17:04:25Z","title_canon_sha256":"09d1399c2589a44922ca858f1f94cf501304ce9b6a9515167f69d1444ff2c6ff"},"schema_version":"1.0","source":{"id":"2604.02272","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2604.02272","created_at":"2026-06-09T01:05:16Z"},{"alias_kind":"arxiv_version","alias_value":"2604.02272v2","created_at":"2026-06-09T01:05:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2604.02272","created_at":"2026-06-09T01:05:16Z"},{"alias_kind":"pith_short_12","alias_value":"724ZLMUZRJPP","created_at":"2026-06-09T01:05:16Z"},{"alias_kind":"pith_short_16","alias_value":"724ZLMUZRJPPH6XT","created_at":"2026-06-09T01:05:16Z"},{"alias_kind":"pith_short_8","alias_value":"724ZLMUZ","created_at":"2026-06-09T01:05:16Z"}],"graph_snapshots":[{"event_id":"sha256:b15dd3b04e33bc08c20738de9707c81b604eb9bf6094861159b09f1176c480c9","target":"graph","created_at":"2026-06-09T01:05:16Z","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/2604.02272/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present an X-ray characterization of a fully depleted, 725 $\\mu$m thick p-channel SiSeRO-CCD. Measurements with a $^{55}$Fe source yield an energy resolution of $54 \\pm 0.9$ eV ($14.6 \\pm 0.25 e^{-}$) at 5.9 keV for single-pixel events, indicating that the SiSeRO amplifier preserves the intrinsic charge resolution of the CCD under multi-sample non-destructive readout. Characterization with a $^{241}$Am source extends the response to higher-energy photons, with reconstructed spectral features observed between 9-26 keV and the 59.5 keV $\\gamma$ emission. These measurements, together with a mu","authors_text":"Chris Leitz, Claudio Chavez, Joseph Noonan, Juan Estrada, Julian Cuevas-Zepeda, Kevan Donlon, Miguel Sofo-Haro, Nathan Saffold, Steve Holland","cross_cats":["astro-ph.IM"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2026-04-02T17:04:25Z","title":"X-ray Response of the Fully-Depleted, p-Channel SiSeRO-CCD"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2604.02272","kind":"arxiv","version":2},"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":"sha256:198020d635a0df5019e1bc48d4dd2dfb955fb1912ed7715a724fd44d4ef93f59","target":"record","created_at":"2026-06-09T01:05:16Z","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":"23f7a69f577a654f9a64bb84e6e52d2f773108228383d7f48fe673ec2a19f5a4","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2026-04-02T17:04:25Z","title_canon_sha256":"09d1399c2589a44922ca858f1f94cf501304ce9b6a9515167f69d1444ff2c6ff"},"schema_version":"1.0","source":{"id":"2604.02272","kind":"arxiv","version":2}},"canonical_sha256":"feb995b2998a5ef3faf369c5624f433b39fe173d8a81f990009aed5bd3ebc345","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"feb995b2998a5ef3faf369c5624f433b39fe173d8a81f990009aed5bd3ebc345","first_computed_at":"2026-06-09T01:05:16.754395Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-09T01:05:16.754395Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iIIbryM1yliVJryASphU4F6HAKvnF0kfUXIdDFMEUxgiGz9T1s8CsyQU3R+bgko75csng4bFpGYbgZBaqrX8Cg==","signature_status":"signed_v1","signed_at":"2026-06-09T01:05:16.754969Z","signed_message":"canonical_sha256_bytes"},"source_id":"2604.02272","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:198020d635a0df5019e1bc48d4dd2dfb955fb1912ed7715a724fd44d4ef93f59","sha256:b15dd3b04e33bc08c20738de9707c81b604eb9bf6094861159b09f1176c480c9"],"state_sha256":"2910c098273ab758f871d070a62824241fa9e279b156a703ab6231ec12040936"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sHiF9PZmYm2+xxcBORxBnHknGlDJL6eQPsls2SjNVQq3xtW3DIdY8gUkIhG/9lYcbEC8HODoADCb9iud6d0mCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T03:26:30.066848Z","bundle_sha256":"d3ebc9fa8c537609d5eebcd9584f56aad79b4667486f51411a16c62f34fd58d1"}}