{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:RQEPQC5CFUNJ4OGBGUPQMSEZVN","short_pith_number":"pith:RQEPQC5C","canonical_record":{"source":{"id":"2411.03165","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-11-05T15:13:40Z","cross_cats_sorted":[],"title_canon_sha256":"484a99a2b6ea941633ebde8a5cd2abb37426f98006d6b57f57cce5ac7448dd0c","abstract_canon_sha256":"8dab4df22698dc20a122b1c7b7cda3154e81ec9f65983004a78aa91e45b6ed9d"},"schema_version":"1.0"},"canonical_sha256":"8c08f80ba22d1a9e38c1351f064899ab6aa6b5c7fd40db062bdc1bfd4f016c23","source":{"kind":"arxiv","id":"2411.03165","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.03165","created_at":"2026-07-05T09:31:26Z"},{"alias_kind":"arxiv_version","alias_value":"2411.03165v1","created_at":"2026-07-05T09:31:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.03165","created_at":"2026-07-05T09:31:26Z"},{"alias_kind":"pith_short_12","alias_value":"RQEPQC5CFUNJ","created_at":"2026-07-05T09:31:26Z"},{"alias_kind":"pith_short_16","alias_value":"RQEPQC5CFUNJ4OGB","created_at":"2026-07-05T09:31:26Z"},{"alias_kind":"pith_short_8","alias_value":"RQEPQC5C","created_at":"2026-07-05T09:31:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:RQEPQC5CFUNJ4OGBGUPQMSEZVN","target":"record","payload":{"canonical_record":{"source":{"id":"2411.03165","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-11-05T15:13:40Z","cross_cats_sorted":[],"title_canon_sha256":"484a99a2b6ea941633ebde8a5cd2abb37426f98006d6b57f57cce5ac7448dd0c","abstract_canon_sha256":"8dab4df22698dc20a122b1c7b7cda3154e81ec9f65983004a78aa91e45b6ed9d"},"schema_version":"1.0"},"canonical_sha256":"8c08f80ba22d1a9e38c1351f064899ab6aa6b5c7fd40db062bdc1bfd4f016c23","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:31:26.629302Z","signature_b64":"MzgC1CwgXwTYmUsUoMYF9FO4Nw6XXDjbe0X3lyOr1prPxGwf58tFt/JQg8AJJimEoeYtpYfZLfBgerOXeoa3DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8c08f80ba22d1a9e38c1351f064899ab6aa6b5c7fd40db062bdc1bfd4f016c23","last_reissued_at":"2026-07-05T09:31:26.628845Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:31:26.628845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2411.03165","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":"2026-07-05T09:31:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SGGn1EQ9bNFWic8UcvKmbdzJAKcUIXXjVtVgVbO6LUKAVJfX9553rfEX3407kRTPXnD8hBJ+A9lc4Je5U06BCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T01:39:12.618838Z"},"content_sha256":"468d6b40c1ffc2a2b782b5760a69508f85c51f40323045d23bb1e42af524f6ec","schema_version":"1.0","event_id":"sha256:468d6b40c1ffc2a2b782b5760a69508f85c51f40323045d23bb1e42af524f6ec"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:RQEPQC5CFUNJ4OGBGUPQMSEZVN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A-STEP: The AstroPix Sounding Rocket Technology Demonstration Payload","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Abhradeep Roy, Amanda Steinhebel, Carolyn Kierans, Daniel P. Violette, David Durachka, Hiroyasu Tajima, Ivan Peric, Jeremy Perkins, Jessica Metcalfe, Kavic Kumar, K.W. Taylor Shin, Lindsey Seo, Manoj Jadhav, Masaki Hashizume, Nicolas Striebig, Norito Nakano, Regina Caputo, Richard Leys, Ryan Boggs, Scott Hesh, Shin Kushima, Yasushi Fukazawa, Yusuke Suda, Zachary Metzler","submitted_at":"2024-11-05T15:13:40Z","abstract_excerpt":"A next-generation medium-energy (100 keV to 100 MeV) gamma-ray observatory will greatly enhance the identification and characterization of multimessenger sources in the coming decade. Coupling gamma-ray spectroscopy, imaging, and polarization to neutrino and gravitational wave detections will develop our understanding of various astrophysical phenomena including compact object mergers, supernovae remnants, active galactic nuclei and gamma-ray bursts. An observatory operating in the MeV energy regime requires technologies that are capable of measuring Compton scattered photons and photons inter"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.03165","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/2411.03165/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":"2026-07-05T09:31:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1qEoXm1IWOIv6N3le7lDTZ4B3wp13IC96pNNFbkPEVab0Cb4AowPdnNj2Uj/HEEY/Bh1HLJNV8ZRtXJ7hLpvBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T01:39:12.619360Z"},"content_sha256":"e05d3352b51af40059f2643f78069364de998d196965d1995ccd18c43c0b95e5","schema_version":"1.0","event_id":"sha256:e05d3352b51af40059f2643f78069364de998d196965d1995ccd18c43c0b95e5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RQEPQC5CFUNJ4OGBGUPQMSEZVN/bundle.json","state_url":"https://pith.science/pith/RQEPQC5CFUNJ4OGBGUPQMSEZVN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RQEPQC5CFUNJ4OGBGUPQMSEZVN/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":"2026-08-19T01:39:12Z","links":{"resolver":"https://pith.science/pith/RQEPQC5CFUNJ4OGBGUPQMSEZVN","bundle":"https://pith.science/pith/RQEPQC5CFUNJ4OGBGUPQMSEZVN/bundle.json","state":"https://pith.science/pith/RQEPQC5CFUNJ4OGBGUPQMSEZVN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RQEPQC5CFUNJ4OGBGUPQMSEZVN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:RQEPQC5CFUNJ4OGBGUPQMSEZVN","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":"8dab4df22698dc20a122b1c7b7cda3154e81ec9f65983004a78aa91e45b6ed9d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-11-05T15:13:40Z","title_canon_sha256":"484a99a2b6ea941633ebde8a5cd2abb37426f98006d6b57f57cce5ac7448dd0c"},"schema_version":"1.0","source":{"id":"2411.03165","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.03165","created_at":"2026-07-05T09:31:26Z"},{"alias_kind":"arxiv_version","alias_value":"2411.03165v1","created_at":"2026-07-05T09:31:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.03165","created_at":"2026-07-05T09:31:26Z"},{"alias_kind":"pith_short_12","alias_value":"RQEPQC5CFUNJ","created_at":"2026-07-05T09:31:26Z"},{"alias_kind":"pith_short_16","alias_value":"RQEPQC5CFUNJ4OGB","created_at":"2026-07-05T09:31:26Z"},{"alias_kind":"pith_short_8","alias_value":"RQEPQC5C","created_at":"2026-07-05T09:31:26Z"}],"graph_snapshots":[{"event_id":"sha256:e05d3352b51af40059f2643f78069364de998d196965d1995ccd18c43c0b95e5","target":"graph","created_at":"2026-07-05T09:31:26Z","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/2411.03165/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A next-generation medium-energy (100 keV to 100 MeV) gamma-ray observatory will greatly enhance the identification and characterization of multimessenger sources in the coming decade. Coupling gamma-ray spectroscopy, imaging, and polarization to neutrino and gravitational wave detections will develop our understanding of various astrophysical phenomena including compact object mergers, supernovae remnants, active galactic nuclei and gamma-ray bursts. An observatory operating in the MeV energy regime requires technologies that are capable of measuring Compton scattered photons and photons inter","authors_text":"Abhradeep Roy, Amanda Steinhebel, Carolyn Kierans, Daniel P. Violette, David Durachka, Hiroyasu Tajima, Ivan Peric, Jeremy Perkins, Jessica Metcalfe, Kavic Kumar, K.W. Taylor Shin, Lindsey Seo, Manoj Jadhav, Masaki Hashizume, Nicolas Striebig, Norito Nakano, Regina Caputo, Richard Leys, Ryan Boggs, Scott Hesh, Shin Kushima, Yasushi Fukazawa, Yusuke Suda, Zachary Metzler","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-11-05T15:13:40Z","title":"A-STEP: The AstroPix Sounding Rocket Technology Demonstration Payload"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.03165","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":"sha256:468d6b40c1ffc2a2b782b5760a69508f85c51f40323045d23bb1e42af524f6ec","target":"record","created_at":"2026-07-05T09:31:26Z","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":"8dab4df22698dc20a122b1c7b7cda3154e81ec9f65983004a78aa91e45b6ed9d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-11-05T15:13:40Z","title_canon_sha256":"484a99a2b6ea941633ebde8a5cd2abb37426f98006d6b57f57cce5ac7448dd0c"},"schema_version":"1.0","source":{"id":"2411.03165","kind":"arxiv","version":1}},"canonical_sha256":"8c08f80ba22d1a9e38c1351f064899ab6aa6b5c7fd40db062bdc1bfd4f016c23","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8c08f80ba22d1a9e38c1351f064899ab6aa6b5c7fd40db062bdc1bfd4f016c23","first_computed_at":"2026-07-05T09:31:26.628845Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:31:26.628845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MzgC1CwgXwTYmUsUoMYF9FO4Nw6XXDjbe0X3lyOr1prPxGwf58tFt/JQg8AJJimEoeYtpYfZLfBgerOXeoa3DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T09:31:26.629302Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.03165","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:468d6b40c1ffc2a2b782b5760a69508f85c51f40323045d23bb1e42af524f6ec","sha256:e05d3352b51af40059f2643f78069364de998d196965d1995ccd18c43c0b95e5"],"state_sha256":"a7b241c2fb2a618805bf18cb06a198e65c7e009ab43c5d3e5a09eb66ade599c7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dWeP0zRS7Y1tpW0w3G0Wg+5+NBS/stnSEXCsdopqdr9jqRVpW9CTH2aKcFkE/35cBJl8pze6a09zLFpog/75Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T01:39:12.625465Z","bundle_sha256":"bf3e4b1b44fffd63989fa325ed48d214b452bd0e06e733ba881c6abcc24a1f25"}}