{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:3A3OZXWFRVLSVEVNAINZLSLNUW","short_pith_number":"pith:3A3OZXWF","canonical_record":{"source":{"id":"1901.00800","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-01-03T16:06:34Z","cross_cats_sorted":["hep-ex","physics.data-an"],"title_canon_sha256":"166b066d3b9e320b5e61fed3de44fe054f26129aab7bbecafa56c3658269ec5f","abstract_canon_sha256":"a10ae18784e519ac944107555b996e91f7c0cb556e07743173d1ab2bddbf3ad5"},"schema_version":"1.0"},"canonical_sha256":"d836ecdec58d572a92ad021b95c96da582afe12e78d439d10f947edb2d2646ac","source":{"kind":"arxiv","id":"1901.00800","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.00800","created_at":"2026-05-17T23:40:43Z"},{"alias_kind":"arxiv_version","alias_value":"1901.00800v3","created_at":"2026-05-17T23:40:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.00800","created_at":"2026-05-17T23:40:43Z"},{"alias_kind":"pith_short_12","alias_value":"3A3OZXWFRVLS","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"3A3OZXWFRVLSVEVN","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"3A3OZXWF","created_at":"2026-05-18T12:33:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:3A3OZXWFRVLSVEVNAINZLSLNUW","target":"record","payload":{"canonical_record":{"source":{"id":"1901.00800","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-01-03T16:06:34Z","cross_cats_sorted":["hep-ex","physics.data-an"],"title_canon_sha256":"166b066d3b9e320b5e61fed3de44fe054f26129aab7bbecafa56c3658269ec5f","abstract_canon_sha256":"a10ae18784e519ac944107555b996e91f7c0cb556e07743173d1ab2bddbf3ad5"},"schema_version":"1.0"},"canonical_sha256":"d836ecdec58d572a92ad021b95c96da582afe12e78d439d10f947edb2d2646ac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:43.503042Z","signature_b64":"VJYUvO69qPQ3BRPlTQJeuNSAyFIIfiOVghvrmA5RlNt4+O/5kaGccWno8E5+Cvm9MVPoXdmWun6t9pDAF5HBDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d836ecdec58d572a92ad021b95c96da582afe12e78d439d10f947edb2d2646ac","last_reissued_at":"2026-05-17T23:40:43.502071Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:43.502071Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.00800","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:40:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/0wn5rPVicnnFdsQfPofo026uxPpndsgJhWbUvvPwBg7unocthLssu8IQmOCOONCwddvrOCLijODbkTd7eGvBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:11:27.982279Z"},"content_sha256":"6937284b711875a386534510cc8dca4b0257f7ad6b203fb1cda4d991f80ee7bc","schema_version":"1.0","event_id":"sha256:6937284b711875a386534510cc8dca4b0257f7ad6b203fb1cda4d991f80ee7bc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:3A3OZXWFRVLSVEVNAINZLSLNUW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observation data pre-processing and scientific data products generation of POLAR","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex","physics.data-an"],"primary_cat":"astro-ph.IM","authors_text":"Bo-Bing Wu, Hua-Lin Xiao, Jian-Chao Sun, Lai-Yu Zhang, Li-Ming Song, Lu Li, Shao-Lin Xiong, Shuang-Nan Zhang, Xing Wen, Yong-Jie Zhang, Zheng-Heng Li","submitted_at":"2019-01-03T16:06:34Z","abstract_excerpt":"POLAR is a compact space-borne detector initially designed to measure the polarization of hard X-rays emitted from Gamma-Ray Bursts in the energy range 50-500keV. This instrument was launched successfully onboard the Chinese space laboratory Tiangong-2 (TG-2) on 2016 September 15. After being switched on a few days later, tens of gigabytes of raw detection data were produced in-orbit by POLAR and transferred to the ground every day. Before the launch date, a full pipeline and related software were designed and developed for the purpose of quickly pre-processing all the raw data from POLAR, whi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.00800","kind":"arxiv","version":3},"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":"2026-05-17T23:40:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jHoO6zxX6JepIMGyApmcWfbRO8sEb78ViMGHeTszNYdSPa5QvTQKAeJ09VcYe0J6g/N+uRtiGu0i2x9zBmXRBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:11:27.983068Z"},"content_sha256":"58b12bea66003aec9150e6d6e3793b00e9c83d1c221a6b7eeb77d9bc9a3b565b","schema_version":"1.0","event_id":"sha256:58b12bea66003aec9150e6d6e3793b00e9c83d1c221a6b7eeb77d9bc9a3b565b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3A3OZXWFRVLSVEVNAINZLSLNUW/bundle.json","state_url":"https://pith.science/pith/3A3OZXWFRVLSVEVNAINZLSLNUW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3A3OZXWFRVLSVEVNAINZLSLNUW/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":"2026-05-30T13:11:27Z","links":{"resolver":"https://pith.science/pith/3A3OZXWFRVLSVEVNAINZLSLNUW","bundle":"https://pith.science/pith/3A3OZXWFRVLSVEVNAINZLSLNUW/bundle.json","state":"https://pith.science/pith/3A3OZXWFRVLSVEVNAINZLSLNUW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3A3OZXWFRVLSVEVNAINZLSLNUW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:3A3OZXWFRVLSVEVNAINZLSLNUW","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":"a10ae18784e519ac944107555b996e91f7c0cb556e07743173d1ab2bddbf3ad5","cross_cats_sorted":["hep-ex","physics.data-an"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-01-03T16:06:34Z","title_canon_sha256":"166b066d3b9e320b5e61fed3de44fe054f26129aab7bbecafa56c3658269ec5f"},"schema_version":"1.0","source":{"id":"1901.00800","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.00800","created_at":"2026-05-17T23:40:43Z"},{"alias_kind":"arxiv_version","alias_value":"1901.00800v3","created_at":"2026-05-17T23:40:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.00800","created_at":"2026-05-17T23:40:43Z"},{"alias_kind":"pith_short_12","alias_value":"3A3OZXWFRVLS","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"3A3OZXWFRVLSVEVN","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"3A3OZXWF","created_at":"2026-05-18T12:33:07Z"}],"graph_snapshots":[{"event_id":"sha256:58b12bea66003aec9150e6d6e3793b00e9c83d1c221a6b7eeb77d9bc9a3b565b","target":"graph","created_at":"2026-05-17T23:40:43Z","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":"POLAR is a compact space-borne detector initially designed to measure the polarization of hard X-rays emitted from Gamma-Ray Bursts in the energy range 50-500keV. This instrument was launched successfully onboard the Chinese space laboratory Tiangong-2 (TG-2) on 2016 September 15. After being switched on a few days later, tens of gigabytes of raw detection data were produced in-orbit by POLAR and transferred to the ground every day. Before the launch date, a full pipeline and related software were designed and developed for the purpose of quickly pre-processing all the raw data from POLAR, whi","authors_text":"Bo-Bing Wu, Hua-Lin Xiao, Jian-Chao Sun, Lai-Yu Zhang, Li-Ming Song, Lu Li, Shao-Lin Xiong, Shuang-Nan Zhang, Xing Wen, Yong-Jie Zhang, Zheng-Heng Li","cross_cats":["hep-ex","physics.data-an"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-01-03T16:06:34Z","title":"Observation data pre-processing and scientific data products generation of POLAR"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.00800","kind":"arxiv","version":3},"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":"sha256:6937284b711875a386534510cc8dca4b0257f7ad6b203fb1cda4d991f80ee7bc","target":"record","created_at":"2026-05-17T23:40:43Z","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":"a10ae18784e519ac944107555b996e91f7c0cb556e07743173d1ab2bddbf3ad5","cross_cats_sorted":["hep-ex","physics.data-an"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-01-03T16:06:34Z","title_canon_sha256":"166b066d3b9e320b5e61fed3de44fe054f26129aab7bbecafa56c3658269ec5f"},"schema_version":"1.0","source":{"id":"1901.00800","kind":"arxiv","version":3}},"canonical_sha256":"d836ecdec58d572a92ad021b95c96da582afe12e78d439d10f947edb2d2646ac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d836ecdec58d572a92ad021b95c96da582afe12e78d439d10f947edb2d2646ac","first_computed_at":"2026-05-17T23:40:43.502071Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:43.502071Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VJYUvO69qPQ3BRPlTQJeuNSAyFIIfiOVghvrmA5RlNt4+O/5kaGccWno8E5+Cvm9MVPoXdmWun6t9pDAF5HBDQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:43.503042Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.00800","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6937284b711875a386534510cc8dca4b0257f7ad6b203fb1cda4d991f80ee7bc","sha256:58b12bea66003aec9150e6d6e3793b00e9c83d1c221a6b7eeb77d9bc9a3b565b"],"state_sha256":"4573fdfa5a610792607a2ac070a9df5fdae98bf1540fdd2364e7f429769ceff3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eug14ixcBLQqmf1Iy/hPOAtUShv0vj1NXla57IDaFl+OyESiyw+5dUr2huPhgGNKzwG1GbytAxhxoZZrHxf2Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T13:11:27.986864Z","bundle_sha256":"17cc00de4bed59e2e18132a55f0786c5b5a5c7ec5090ef4b5a0dbf641e21476d"}}