{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:XNNNAEWGHLXDHD6NK2CFEEUEAZ","short_pith_number":"pith:XNNNAEWG","canonical_record":{"source":{"id":"1911.01594","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-11-05T03:28:47Z","cross_cats_sorted":[],"title_canon_sha256":"9b0306345a4d6144482ac2dfe24ed9bad80d1fdc974150103f8120ae27572aaf","abstract_canon_sha256":"52e5f612e0107e7ec1848ad6a434c3f77f81d8f8dac8433a8d7c41025d1f5790"},"schema_version":"1.0"},"canonical_sha256":"bb5ad012c63aee338fcd568452128406473bbcc933164ec6d4ec12ba5ef03b5b","source":{"kind":"arxiv","id":"1911.01594","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1911.01594","created_at":"2026-07-05T00:49:08Z"},{"alias_kind":"arxiv_version","alias_value":"1911.01594v2","created_at":"2026-07-05T00:49:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1911.01594","created_at":"2026-07-05T00:49:08Z"},{"alias_kind":"pith_short_12","alias_value":"XNNNAEWGHLXD","created_at":"2026-07-05T00:49:08Z"},{"alias_kind":"pith_short_16","alias_value":"XNNNAEWGHLXDHD6N","created_at":"2026-07-05T00:49:08Z"},{"alias_kind":"pith_short_8","alias_value":"XNNNAEWG","created_at":"2026-07-05T00:49:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:XNNNAEWGHLXDHD6NK2CFEEUEAZ","target":"record","payload":{"canonical_record":{"source":{"id":"1911.01594","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-11-05T03:28:47Z","cross_cats_sorted":[],"title_canon_sha256":"9b0306345a4d6144482ac2dfe24ed9bad80d1fdc974150103f8120ae27572aaf","abstract_canon_sha256":"52e5f612e0107e7ec1848ad6a434c3f77f81d8f8dac8433a8d7c41025d1f5790"},"schema_version":"1.0"},"canonical_sha256":"bb5ad012c63aee338fcd568452128406473bbcc933164ec6d4ec12ba5ef03b5b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:49:08.577380Z","signature_b64":"+9dMIwwpZRW4B8UaU7qEUxP6BiRrK7FsIgj9Ocm6VgCcbmtGHYF3809N7OPKcNAx2VyV/CadrJpQHRMjwk/qCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bb5ad012c63aee338fcd568452128406473bbcc933164ec6d4ec12ba5ef03b5b","last_reissued_at":"2026-07-05T00:49:08.576800Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:49:08.576800Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1911.01594","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":"2026-07-05T00:49:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JwUKg+kZh3kFxqGK+G4voD0mU0RHO54AYvQ21gw8aVWYCAkVhEqhYLTmCJuYekXkZwv3AnQfWvoAuqsCpgIyAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T09:08:54.609127Z"},"content_sha256":"5ff4931a77dc5d635b4761d1a9d70635275fb2016837abdb87f6d1bd09d3a5e5","schema_version":"1.0","event_id":"sha256:5ff4931a77dc5d635b4761d1a9d70635275fb2016837abdb87f6d1bd09d3a5e5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:XNNNAEWGHLXDHD6NK2CFEEUEAZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Design and Calibration of the High Energy Particle Monitor onboard the Insight-HXMT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"AiMei Zhang, CongZhan Liu, Fangjun Lu, Fan Zhang, Gang Li, Shuang-Nan Zhang, Shu Zhang, Xiaobo Li, Xuefeng Lu, Xufang Li, Yifei Zhang, Yupeng Xu, Zhengwei Li, Zhi Chang","submitted_at":"2019-11-05T03:28:47Z","abstract_excerpt":"Three high energy particle monitors (HPMs) employed onboard the Hard X-ray Modulation Telescope Insight-HXMT) can detect the charged particles from South Atlantic Anomaly (SAA) and hence provide the alert trigger for switch-on/off of the main detectors. Here a typical design of HPM with high stability and reliability is adopted by taking a plastic scintillator coupled with a small photomultiplier tube (PMT). The window threshold of HPM is designed as 1 MeV and 20 MeV for the incident electron and proton, respectively. Before the launch of Insight-HXMT, we performed in details the ground calibr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.01594","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/1911.01594/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":"2026-07-05T00:49:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ADheGE+lE8Sn6V+7UE1rSL8AgB3yQDmxr5cdOFnUsCrVijMOjG21ak7WdsxZ1gOrnuUcduH3nCa1xunFoh2NDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T09:08:54.609669Z"},"content_sha256":"c8411ed2095fb71f51d18f4871084bcf49fa995b2995a932cbc0443e47fdb5d1","schema_version":"1.0","event_id":"sha256:c8411ed2095fb71f51d18f4871084bcf49fa995b2995a932cbc0443e47fdb5d1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XNNNAEWGHLXDHD6NK2CFEEUEAZ/bundle.json","state_url":"https://pith.science/pith/XNNNAEWGHLXDHD6NK2CFEEUEAZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XNNNAEWGHLXDHD6NK2CFEEUEAZ/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":"2026-08-06T09:08:54Z","links":{"resolver":"https://pith.science/pith/XNNNAEWGHLXDHD6NK2CFEEUEAZ","bundle":"https://pith.science/pith/XNNNAEWGHLXDHD6NK2CFEEUEAZ/bundle.json","state":"https://pith.science/pith/XNNNAEWGHLXDHD6NK2CFEEUEAZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XNNNAEWGHLXDHD6NK2CFEEUEAZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:XNNNAEWGHLXDHD6NK2CFEEUEAZ","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":"52e5f612e0107e7ec1848ad6a434c3f77f81d8f8dac8433a8d7c41025d1f5790","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-11-05T03:28:47Z","title_canon_sha256":"9b0306345a4d6144482ac2dfe24ed9bad80d1fdc974150103f8120ae27572aaf"},"schema_version":"1.0","source":{"id":"1911.01594","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1911.01594","created_at":"2026-07-05T00:49:08Z"},{"alias_kind":"arxiv_version","alias_value":"1911.01594v2","created_at":"2026-07-05T00:49:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1911.01594","created_at":"2026-07-05T00:49:08Z"},{"alias_kind":"pith_short_12","alias_value":"XNNNAEWGHLXD","created_at":"2026-07-05T00:49:08Z"},{"alias_kind":"pith_short_16","alias_value":"XNNNAEWGHLXDHD6N","created_at":"2026-07-05T00:49:08Z"},{"alias_kind":"pith_short_8","alias_value":"XNNNAEWG","created_at":"2026-07-05T00:49:08Z"}],"graph_snapshots":[{"event_id":"sha256:c8411ed2095fb71f51d18f4871084bcf49fa995b2995a932cbc0443e47fdb5d1","target":"graph","created_at":"2026-07-05T00:49:08Z","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/1911.01594/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Three high energy particle monitors (HPMs) employed onboard the Hard X-ray Modulation Telescope Insight-HXMT) can detect the charged particles from South Atlantic Anomaly (SAA) and hence provide the alert trigger for switch-on/off of the main detectors. Here a typical design of HPM with high stability and reliability is adopted by taking a plastic scintillator coupled with a small photomultiplier tube (PMT). The window threshold of HPM is designed as 1 MeV and 20 MeV for the incident electron and proton, respectively. Before the launch of Insight-HXMT, we performed in details the ground calibr","authors_text":"AiMei Zhang, CongZhan Liu, Fangjun Lu, Fan Zhang, Gang Li, Shuang-Nan Zhang, Shu Zhang, Xiaobo Li, Xuefeng Lu, Xufang Li, Yifei Zhang, Yupeng Xu, Zhengwei Li, Zhi Chang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-11-05T03:28:47Z","title":"Design and Calibration of the High Energy Particle Monitor onboard the Insight-HXMT"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.01594","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":"sha256:5ff4931a77dc5d635b4761d1a9d70635275fb2016837abdb87f6d1bd09d3a5e5","target":"record","created_at":"2026-07-05T00:49:08Z","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":"52e5f612e0107e7ec1848ad6a434c3f77f81d8f8dac8433a8d7c41025d1f5790","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-11-05T03:28:47Z","title_canon_sha256":"9b0306345a4d6144482ac2dfe24ed9bad80d1fdc974150103f8120ae27572aaf"},"schema_version":"1.0","source":{"id":"1911.01594","kind":"arxiv","version":2}},"canonical_sha256":"bb5ad012c63aee338fcd568452128406473bbcc933164ec6d4ec12ba5ef03b5b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bb5ad012c63aee338fcd568452128406473bbcc933164ec6d4ec12ba5ef03b5b","first_computed_at":"2026-07-05T00:49:08.576800Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:49:08.576800Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+9dMIwwpZRW4B8UaU7qEUxP6BiRrK7FsIgj9Ocm6VgCcbmtGHYF3809N7OPKcNAx2VyV/CadrJpQHRMjwk/qCA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:49:08.577380Z","signed_message":"canonical_sha256_bytes"},"source_id":"1911.01594","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5ff4931a77dc5d635b4761d1a9d70635275fb2016837abdb87f6d1bd09d3a5e5","sha256:c8411ed2095fb71f51d18f4871084bcf49fa995b2995a932cbc0443e47fdb5d1"],"state_sha256":"44b84501ccfeecebffeb681c81f7f24cccb8618a01e46e6d5478b986cc405abf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TZVWanzm5aTBiQ3U1/D9pLtQ4cf1WYW8aD6XciDzc2+gZ72gaf2sYwMYd8TitS7vK1R80FDpLjIi8MXXd9RSBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T09:08:54.612852Z","bundle_sha256":"799f0b58bfa35fecf3256f18e7972dc00cce7986c54d45715f281fcca05757bc"}}