{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:YP3C7YZ7Y6WDPDPNCF7FOH3FPM","short_pith_number":"pith:YP3C7YZ7","canonical_record":{"source":{"id":"2109.01720","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-09-03T20:23:58Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"dd6d9ba443572f1bb1237688d81f7061d1fb1f0734b432d025cf5779ee9424ac","abstract_canon_sha256":"120aa535a8f8d9ef501fb5e25db65480b5a6e454c360c2a2aa8f4cce349efc16"},"schema_version":"1.0"},"canonical_sha256":"c3f62fe33fc7ac378ded117e571f657b3e51dc9e4faab32ba111606b3813cc3a","source":{"kind":"arxiv","id":"2109.01720","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.01720","created_at":"2026-07-05T07:19:15Z"},{"alias_kind":"arxiv_version","alias_value":"2109.01720v1","created_at":"2026-07-05T07:19:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.01720","created_at":"2026-07-05T07:19:15Z"},{"alias_kind":"pith_short_12","alias_value":"YP3C7YZ7Y6WD","created_at":"2026-07-05T07:19:15Z"},{"alias_kind":"pith_short_16","alias_value":"YP3C7YZ7Y6WDPDPN","created_at":"2026-07-05T07:19:15Z"},{"alias_kind":"pith_short_8","alias_value":"YP3C7YZ7","created_at":"2026-07-05T07:19:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:YP3C7YZ7Y6WDPDPNCF7FOH3FPM","target":"record","payload":{"canonical_record":{"source":{"id":"2109.01720","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-09-03T20:23:58Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"dd6d9ba443572f1bb1237688d81f7061d1fb1f0734b432d025cf5779ee9424ac","abstract_canon_sha256":"120aa535a8f8d9ef501fb5e25db65480b5a6e454c360c2a2aa8f4cce349efc16"},"schema_version":"1.0"},"canonical_sha256":"c3f62fe33fc7ac378ded117e571f657b3e51dc9e4faab32ba111606b3813cc3a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:19:15.913012Z","signature_b64":"pArdi/j6lQQI+Q64KQzaPr4UhK6wCRIMszBEeonTpjyTRIyagKTIcWxEuxmYrNCc8aoQKyOsoXoSxXAx8mCXBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c3f62fe33fc7ac378ded117e571f657b3e51dc9e4faab32ba111606b3813cc3a","last_reissued_at":"2026-07-05T07:19:15.912459Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:19:15.912459Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2109.01720","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":"2026-07-05T07:19:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ypdKLi/HWm1XsKU4KTonyJcF/qqtzp3G35r+K1BvZFPjFnad3Ze9UDNv4jAdn72ERSxwuAjid/+ejrTGa+rtAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T02:47:32.353856Z"},"content_sha256":"0c480f8ad467f37d6c358a557ccb7708cf1a8be39489592f1366be9886ed3848","schema_version":"1.0","event_id":"sha256:0c480f8ad467f37d6c358a557ccb7708cf1a8be39489592f1366be9886ed3848"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:YP3C7YZ7Y6WDPDPNCF7FOH3FPM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Calibration of the MaGIXS experiment II: Flight Instrument Calibration","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.IM","authors_text":"Alexander R. Bruccoleri, Amy R. Winebarger, Brent Beabout, Chad Madsen, David Broadway, Dyana Beabout, Edward Hertz, Eric Gullikson, Ernest Wright, Genevieve D. Vigil, Harlan Haight, Jeffery Kolodziejczak, Jeffrey Kegley, Ken Kobayashi, Leon Golub, Mark L. Schattenburg, Patrick Champey, Peter Cheimets, P.S. Athiray, Ralf K. Heilmann, Richard Siler, Sabrina Savage, Steven Johnson, William Hogue","submitted_at":"2021-09-03T20:23:58Z","abstract_excerpt":"The Marshall Grazing Incidence X-ray Spectrometer (MaGIXS) is a sounding rocket experiment that observes the soft X-ray spectrum of the Sun from 6.0 - 24 Angstrom (0.5 - 2.0 keV), successfully launched on 30 July 2021. End-to-end alignment of the flight instrument and calibration experiments are carried out using the X-ray and Cryogenic Facility (XRCF) at NASA Marshall Space Flight Center. In this paper, we present the calibration experiments of MaGIXS, which include wavelength calibration, measurement of line spread function, and determination of effective area. Finally, we use the measured i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.01720","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/2109.01720/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":"2026-07-05T07:19:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ciPMJXtuEfN/rnSzGRdEG6jftrQlVeisIPNumxuBbUrwf2TFt31EpEyuZ1o5lRX3SN3VYvNRNasSr7aAu2RqDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T02:47:32.354240Z"},"content_sha256":"2009fcbc171e3dccc3fb8e5597450957c6becd262873b8e4257bdfa1793ac5a2","schema_version":"1.0","event_id":"sha256:2009fcbc171e3dccc3fb8e5597450957c6becd262873b8e4257bdfa1793ac5a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YP3C7YZ7Y6WDPDPNCF7FOH3FPM/bundle.json","state_url":"https://pith.science/pith/YP3C7YZ7Y6WDPDPNCF7FOH3FPM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YP3C7YZ7Y6WDPDPNCF7FOH3FPM/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":"2026-07-21T02:47:32Z","links":{"resolver":"https://pith.science/pith/YP3C7YZ7Y6WDPDPNCF7FOH3FPM","bundle":"https://pith.science/pith/YP3C7YZ7Y6WDPDPNCF7FOH3FPM/bundle.json","state":"https://pith.science/pith/YP3C7YZ7Y6WDPDPNCF7FOH3FPM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YP3C7YZ7Y6WDPDPNCF7FOH3FPM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:YP3C7YZ7Y6WDPDPNCF7FOH3FPM","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":"120aa535a8f8d9ef501fb5e25db65480b5a6e454c360c2a2aa8f4cce349efc16","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-09-03T20:23:58Z","title_canon_sha256":"dd6d9ba443572f1bb1237688d81f7061d1fb1f0734b432d025cf5779ee9424ac"},"schema_version":"1.0","source":{"id":"2109.01720","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.01720","created_at":"2026-07-05T07:19:15Z"},{"alias_kind":"arxiv_version","alias_value":"2109.01720v1","created_at":"2026-07-05T07:19:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.01720","created_at":"2026-07-05T07:19:15Z"},{"alias_kind":"pith_short_12","alias_value":"YP3C7YZ7Y6WD","created_at":"2026-07-05T07:19:15Z"},{"alias_kind":"pith_short_16","alias_value":"YP3C7YZ7Y6WDPDPN","created_at":"2026-07-05T07:19:15Z"},{"alias_kind":"pith_short_8","alias_value":"YP3C7YZ7","created_at":"2026-07-05T07:19:15Z"}],"graph_snapshots":[{"event_id":"sha256:2009fcbc171e3dccc3fb8e5597450957c6becd262873b8e4257bdfa1793ac5a2","target":"graph","created_at":"2026-07-05T07:19:15Z","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/2109.01720/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Marshall Grazing Incidence X-ray Spectrometer (MaGIXS) is a sounding rocket experiment that observes the soft X-ray spectrum of the Sun from 6.0 - 24 Angstrom (0.5 - 2.0 keV), successfully launched on 30 July 2021. End-to-end alignment of the flight instrument and calibration experiments are carried out using the X-ray and Cryogenic Facility (XRCF) at NASA Marshall Space Flight Center. In this paper, we present the calibration experiments of MaGIXS, which include wavelength calibration, measurement of line spread function, and determination of effective area. Finally, we use the measured i","authors_text":"Alexander R. Bruccoleri, Amy R. Winebarger, Brent Beabout, Chad Madsen, David Broadway, Dyana Beabout, Edward Hertz, Eric Gullikson, Ernest Wright, Genevieve D. Vigil, Harlan Haight, Jeffery Kolodziejczak, Jeffrey Kegley, Ken Kobayashi, Leon Golub, Mark L. Schattenburg, Patrick Champey, Peter Cheimets, P.S. Athiray, Ralf K. Heilmann, Richard Siler, Sabrina Savage, Steven Johnson, William Hogue","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-09-03T20:23:58Z","title":"Calibration of the MaGIXS experiment II: Flight Instrument Calibration"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.01720","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":"sha256:0c480f8ad467f37d6c358a557ccb7708cf1a8be39489592f1366be9886ed3848","target":"record","created_at":"2026-07-05T07:19:15Z","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":"120aa535a8f8d9ef501fb5e25db65480b5a6e454c360c2a2aa8f4cce349efc16","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-09-03T20:23:58Z","title_canon_sha256":"dd6d9ba443572f1bb1237688d81f7061d1fb1f0734b432d025cf5779ee9424ac"},"schema_version":"1.0","source":{"id":"2109.01720","kind":"arxiv","version":1}},"canonical_sha256":"c3f62fe33fc7ac378ded117e571f657b3e51dc9e4faab32ba111606b3813cc3a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c3f62fe33fc7ac378ded117e571f657b3e51dc9e4faab32ba111606b3813cc3a","first_computed_at":"2026-07-05T07:19:15.912459Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:19:15.912459Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pArdi/j6lQQI+Q64KQzaPr4UhK6wCRIMszBEeonTpjyTRIyagKTIcWxEuxmYrNCc8aoQKyOsoXoSxXAx8mCXBg==","signature_status":"signed_v1","signed_at":"2026-07-05T07:19:15.913012Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.01720","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0c480f8ad467f37d6c358a557ccb7708cf1a8be39489592f1366be9886ed3848","sha256:2009fcbc171e3dccc3fb8e5597450957c6becd262873b8e4257bdfa1793ac5a2"],"state_sha256":"fe6c84e1114c651be2840561246c8cc52753abe4c9067d318e662156c567d9be"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yGQnPZLoPPY30fXvK+SeR2sTYnF/TlXmMG17uz6A+ynjjiy5PE8VcA3VVCmntExEwVGuMM0mtzBx+hEbZ68xCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-21T02:47:32.356386Z","bundle_sha256":"779e568db695694c46c5a36315cd50b7df019c95e2014fa01b777ba9a72258e6"}}