{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:AAEQQUR6MS7CFSAEMMMWK7FEHJ","short_pith_number":"pith:AAEQQUR6","canonical_record":{"source":{"id":"1109.0378","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-09-02T08:03:32Z","cross_cats_sorted":[],"title_canon_sha256":"c22e68ce23f22f85cd878d39f573a95f13d50b0ce73d739c43d459cacd69dd44","abstract_canon_sha256":"f15c30ab307b7c560ada61bdac392fd1da3af1fcc3be22ab873aa34c563a4a07"},"schema_version":"1.0"},"canonical_sha256":"000908523e64be22c8046319657ca43a73f928a8a3ab38c8cb557b0b90d0137b","source":{"kind":"arxiv","id":"1109.0378","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.0378","created_at":"2026-05-18T02:00:42Z"},{"alias_kind":"arxiv_version","alias_value":"1109.0378v2","created_at":"2026-05-18T02:00:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.0378","created_at":"2026-05-18T02:00:42Z"},{"alias_kind":"pith_short_12","alias_value":"AAEQQUR6MS7C","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"AAEQQUR6MS7CFSAE","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"AAEQQUR6","created_at":"2026-05-18T12:26:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:AAEQQUR6MS7CFSAEMMMWK7FEHJ","target":"record","payload":{"canonical_record":{"source":{"id":"1109.0378","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-09-02T08:03:32Z","cross_cats_sorted":[],"title_canon_sha256":"c22e68ce23f22f85cd878d39f573a95f13d50b0ce73d739c43d459cacd69dd44","abstract_canon_sha256":"f15c30ab307b7c560ada61bdac392fd1da3af1fcc3be22ab873aa34c563a4a07"},"schema_version":"1.0"},"canonical_sha256":"000908523e64be22c8046319657ca43a73f928a8a3ab38c8cb557b0b90d0137b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:42.871303Z","signature_b64":"N0dy3qN4iHe7nztHCTSV8vCn2tf6dg8rFYxqj7DlIrjSVGU9XRk3Sy9Fi+WUAtlu+CIapns/Aql2L5dc0U9tCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"000908523e64be22c8046319657ca43a73f928a8a3ab38c8cb557b0b90d0137b","last_reissued_at":"2026-05-18T02:00:42.870721Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:42.870721Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.0378","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":"2026-05-18T02:00:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"55qpkrm0t86rDyyjr0YefSF7TE1o72V6a1NVc1PQnjb29odOzW+XDutIN0C+EXUeX6O0rys5Zxq2gY5ZWVEYAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T17:19:57.330455Z"},"content_sha256":"9331fdb99932c2beeb496707c959ab680ed42320f98664d15035aef85c35716e","schema_version":"1.0","event_id":"sha256:9331fdb99932c2beeb496707c959ab680ed42320f98664d15035aef85c35716e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:AAEQQUR6MS7CFSAEMMMWK7FEHJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spectral calibration and modeling of the NuSTAR CdZnTe pixel detectors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Andreas C. Zoglauer, Brian W. Grefenstette, Fiona A. Harrison, Hiromasa Miyasaka, Peter H. Mao, Steven E. Boggs, Takao Kitaguchi, Varun B. Bhalerao, Vikram R. Rana, Walter R. Cook III","submitted_at":"2011-09-02T08:03:32Z","abstract_excerpt":"The Nuclear Spectroscopic Telescope Array (NuSTAR) will be the first space mission to focus in the hard X-ray (5-80 keV) band. The NuSTAR instrument carries two co-aligned grazing incidence hard X-ray telescopes. Each NuSTAR focal plane consists of four 2 mm CdZnTe hybrid pixel detectors, each with an active collecting area of 2 cm x 2 cm. Each hybrid consists of a 32 x 32 array of 605 micron pixels, read out with the Caltech custom low-noise NuCIT ASIC. In order to characterize the spectral response of each pixel to the degree required to meet the science calibration requirements, we have dev"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.0378","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":""},"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":"2026-05-18T02:00:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b8c38MaV1ejb0Rpl7NgXlPVLAs16szWZz5RBXm8HMktVhDyWOZ8+Dqqt17x/zv8XSaAJKtsc3JRKu/xQopjqBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T17:19:57.331256Z"},"content_sha256":"08ed82138607ea832fdc9d6e4c88a43abc974442bd3f2bbf102b5cd992a4859a","schema_version":"1.0","event_id":"sha256:08ed82138607ea832fdc9d6e4c88a43abc974442bd3f2bbf102b5cd992a4859a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AAEQQUR6MS7CFSAEMMMWK7FEHJ/bundle.json","state_url":"https://pith.science/pith/AAEQQUR6MS7CFSAEMMMWK7FEHJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AAEQQUR6MS7CFSAEMMMWK7FEHJ/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":"2026-05-31T17:19:57Z","links":{"resolver":"https://pith.science/pith/AAEQQUR6MS7CFSAEMMMWK7FEHJ","bundle":"https://pith.science/pith/AAEQQUR6MS7CFSAEMMMWK7FEHJ/bundle.json","state":"https://pith.science/pith/AAEQQUR6MS7CFSAEMMMWK7FEHJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AAEQQUR6MS7CFSAEMMMWK7FEHJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:AAEQQUR6MS7CFSAEMMMWK7FEHJ","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":"f15c30ab307b7c560ada61bdac392fd1da3af1fcc3be22ab873aa34c563a4a07","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-09-02T08:03:32Z","title_canon_sha256":"c22e68ce23f22f85cd878d39f573a95f13d50b0ce73d739c43d459cacd69dd44"},"schema_version":"1.0","source":{"id":"1109.0378","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.0378","created_at":"2026-05-18T02:00:42Z"},{"alias_kind":"arxiv_version","alias_value":"1109.0378v2","created_at":"2026-05-18T02:00:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.0378","created_at":"2026-05-18T02:00:42Z"},{"alias_kind":"pith_short_12","alias_value":"AAEQQUR6MS7C","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"AAEQQUR6MS7CFSAE","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"AAEQQUR6","created_at":"2026-05-18T12:26:24Z"}],"graph_snapshots":[{"event_id":"sha256:08ed82138607ea832fdc9d6e4c88a43abc974442bd3f2bbf102b5cd992a4859a","target":"graph","created_at":"2026-05-18T02:00:42Z","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"},"paper":{"abstract_excerpt":"The Nuclear Spectroscopic Telescope Array (NuSTAR) will be the first space mission to focus in the hard X-ray (5-80 keV) band. The NuSTAR instrument carries two co-aligned grazing incidence hard X-ray telescopes. Each NuSTAR focal plane consists of four 2 mm CdZnTe hybrid pixel detectors, each with an active collecting area of 2 cm x 2 cm. Each hybrid consists of a 32 x 32 array of 605 micron pixels, read out with the Caltech custom low-noise NuCIT ASIC. In order to characterize the spectral response of each pixel to the degree required to meet the science calibration requirements, we have dev","authors_text":"Andreas C. Zoglauer, Brian W. Grefenstette, Fiona A. Harrison, Hiromasa Miyasaka, Peter H. Mao, Steven E. Boggs, Takao Kitaguchi, Varun B. Bhalerao, Vikram R. Rana, Walter R. Cook III","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-09-02T08:03:32Z","title":"Spectral calibration and modeling of the NuSTAR CdZnTe pixel detectors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.0378","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":"sha256:9331fdb99932c2beeb496707c959ab680ed42320f98664d15035aef85c35716e","target":"record","created_at":"2026-05-18T02:00:42Z","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":"f15c30ab307b7c560ada61bdac392fd1da3af1fcc3be22ab873aa34c563a4a07","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-09-02T08:03:32Z","title_canon_sha256":"c22e68ce23f22f85cd878d39f573a95f13d50b0ce73d739c43d459cacd69dd44"},"schema_version":"1.0","source":{"id":"1109.0378","kind":"arxiv","version":2}},"canonical_sha256":"000908523e64be22c8046319657ca43a73f928a8a3ab38c8cb557b0b90d0137b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"000908523e64be22c8046319657ca43a73f928a8a3ab38c8cb557b0b90d0137b","first_computed_at":"2026-05-18T02:00:42.870721Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:42.870721Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N0dy3qN4iHe7nztHCTSV8vCn2tf6dg8rFYxqj7DlIrjSVGU9XRk3Sy9Fi+WUAtlu+CIapns/Aql2L5dc0U9tCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:42.871303Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.0378","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9331fdb99932c2beeb496707c959ab680ed42320f98664d15035aef85c35716e","sha256:08ed82138607ea832fdc9d6e4c88a43abc974442bd3f2bbf102b5cd992a4859a"],"state_sha256":"36ba7a7e55aa63d317446e44ffd630f90fbe64d0c493f51b25874e31637254b6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I7LByRrniMIY6HYlVJXJdIz2f98Yw7JA5fyldQCRrsWz75mJSKZTAESZwSbjXBAuQMDjbRrzYSHU9EsrOaz8AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T17:19:57.335484Z","bundle_sha256":"f57ad151be22070d5ed1a56c289cbf4c41e1d08cd24af321c7d3dae4352f0898"}}