{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:6JESVDTFF3S5LBLQP762LURANL","short_pith_number":"pith:6JESVDTF","schema_version":"1.0","canonical_sha256":"f2492a8e652ee5d585707ffda5d2206ada1fc30e8d7491922bdc4cf4fc1be33e","source":{"kind":"arxiv","id":"0808.3718","version":1},"attestation_state":"computed","paper":{"title":"An X-ray photometry system I: Chandra ACIS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"G. Fabbiano, H.-J. Grimm, J. McDowell, M. Elvis","submitted_at":"2008-08-27T15:12:59Z","abstract_excerpt":"We present a system of X-ray photometry for the Chandra satellite. X-ray photometry can be a powerful tool to obtain flux estimates, hardness ratios, and colors unbiased by assumptions about spectral shape and independent of temporal and spatial changes in instrument characteristics. The system we have developed relies on our knowledge of effective area and the energy-to-channel conversion to construct filters similar to photometric filters in the optical bandpass. We show that the filters are well behaved functions of energy and that this X-ray photometric system is able to reconstruct fluxes"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"0808.3718","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-08-27T15:12:59Z","cross_cats_sorted":[],"title_canon_sha256":"f10cf736909797e865e4c5c0a7ddb162d026df0538f324c4cf8a71f6c31aa06f","abstract_canon_sha256":"29389e2d4555c4bf71b3e602678e94ac085b5725103c0325c70b149a745796ae"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:34:13.955429Z","signature_b64":"OL0K/TXqtNiFS6OL3Edy7MHcMTTcIDxZwYPLtFQRDazbcwbGEncK3z5qZ9ZtfXAvNYYKE6+Zh6SOnggrtUOUDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f2492a8e652ee5d585707ffda5d2206ada1fc30e8d7491922bdc4cf4fc1be33e","last_reissued_at":"2026-07-04T15:34:13.955015Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:34:13.955015Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"An X-ray photometry system I: Chandra ACIS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"G. Fabbiano, H.-J. Grimm, J. McDowell, M. Elvis","submitted_at":"2008-08-27T15:12:59Z","abstract_excerpt":"We present a system of X-ray photometry for the Chandra satellite. X-ray photometry can be a powerful tool to obtain flux estimates, hardness ratios, and colors unbiased by assumptions about spectral shape and independent of temporal and spatial changes in instrument characteristics. The system we have developed relies on our knowledge of effective area and the energy-to-channel conversion to construct filters similar to photometric filters in the optical bandpass. We show that the filters are well behaved functions of energy and that this X-ray photometric system is able to reconstruct fluxes"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0808.3718","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/0808.3718/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"0808.3718","created_at":"2026-07-04T15:34:13.955070+00:00"},{"alias_kind":"arxiv_version","alias_value":"0808.3718v1","created_at":"2026-07-04T15:34:13.955070+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0808.3718","created_at":"2026-07-04T15:34:13.955070+00:00"},{"alias_kind":"pith_short_12","alias_value":"6JESVDTFF3S5","created_at":"2026-07-04T15:34:13.955070+00:00"},{"alias_kind":"pith_short_16","alias_value":"6JESVDTFF3S5LBLQ","created_at":"2026-07-04T15:34:13.955070+00:00"},{"alias_kind":"pith_short_8","alias_value":"6JESVDTF","created_at":"2026-07-04T15:34:13.955070+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6JESVDTFF3S5LBLQP762LURANL","json":"https://pith.science/pith/6JESVDTFF3S5LBLQP762LURANL.json","graph_json":"https://pith.science/api/pith-number/6JESVDTFF3S5LBLQP762LURANL/graph.json","events_json":"https://pith.science/api/pith-number/6JESVDTFF3S5LBLQP762LURANL/events.json","paper":"https://pith.science/paper/6JESVDTF"},"agent_actions":{"view_html":"https://pith.science/pith/6JESVDTFF3S5LBLQP762LURANL","download_json":"https://pith.science/pith/6JESVDTFF3S5LBLQP762LURANL.json","view_paper":"https://pith.science/paper/6JESVDTF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0808.3718&json=true","fetch_graph":"https://pith.science/api/pith-number/6JESVDTFF3S5LBLQP762LURANL/graph.json","fetch_events":"https://pith.science/api/pith-number/6JESVDTFF3S5LBLQP762LURANL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6JESVDTFF3S5LBLQP762LURANL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6JESVDTFF3S5LBLQP762LURANL/action/storage_attestation","attest_author":"https://pith.science/pith/6JESVDTFF3S5LBLQP762LURANL/action/author_attestation","sign_citation":"https://pith.science/pith/6JESVDTFF3S5LBLQP762LURANL/action/citation_signature","submit_replication":"https://pith.science/pith/6JESVDTFF3S5LBLQP762LURANL/action/replication_record"}},"created_at":"2026-07-04T15:34:13.955070+00:00","updated_at":"2026-07-04T15:34:13.955070+00:00"}