{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:6M3LGG5MG2QFGNH572V5B3J6SO","short_pith_number":"pith:6M3LGG5M","canonical_record":{"source":{"id":"2304.14697","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-04-28T09:05:40Z","cross_cats_sorted":[],"title_canon_sha256":"f4525eb5219a728652177e6020c0006c98417cf3574aeaa86730cfa5573fbabb","abstract_canon_sha256":"247ad2f0a567815a4dd3fbfe6b281503b0d21dd9121a9776b44d37bd01b8f954"},"schema_version":"1.0"},"canonical_sha256":"f336b31bac36a05334fdfeabd0ed3e93b546536fef54ebd2360b0e4f74544358","source":{"kind":"arxiv","id":"2304.14697","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.14697","created_at":"2026-07-05T07:23:57Z"},{"alias_kind":"arxiv_version","alias_value":"2304.14697v2","created_at":"2026-07-05T07:23:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.14697","created_at":"2026-07-05T07:23:57Z"},{"alias_kind":"pith_short_12","alias_value":"6M3LGG5MG2QF","created_at":"2026-07-05T07:23:57Z"},{"alias_kind":"pith_short_16","alias_value":"6M3LGG5MG2QFGNH5","created_at":"2026-07-05T07:23:57Z"},{"alias_kind":"pith_short_8","alias_value":"6M3LGG5M","created_at":"2026-07-05T07:23:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:6M3LGG5MG2QFGNH572V5B3J6SO","target":"record","payload":{"canonical_record":{"source":{"id":"2304.14697","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-04-28T09:05:40Z","cross_cats_sorted":[],"title_canon_sha256":"f4525eb5219a728652177e6020c0006c98417cf3574aeaa86730cfa5573fbabb","abstract_canon_sha256":"247ad2f0a567815a4dd3fbfe6b281503b0d21dd9121a9776b44d37bd01b8f954"},"schema_version":"1.0"},"canonical_sha256":"f336b31bac36a05334fdfeabd0ed3e93b546536fef54ebd2360b0e4f74544358","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:23:57.302079Z","signature_b64":"/uBE/30tLlrFE0KDSo5uMSiQS5F0tfKVxdiGVR/JXrVkDa2x1pO3GKGykAFvE9Bud3kSWK7bVgdj28O4WL8nCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f336b31bac36a05334fdfeabd0ed3e93b546536fef54ebd2360b0e4f74544358","last_reissued_at":"2026-07-05T07:23:57.301537Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:23:57.301537Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2304.14697","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":"2026-07-05T07:23:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9DRma2mzac7b/+iyVaHWnCj7Td+MoS/jj7Czzf3xsK1l1hncyGyGlbO/NNzfKv+LYF0JonCTiBiYyM6tie10CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T09:19:16.800940Z"},"content_sha256":"8d9fa62c0f9665eb5529164602119c2d4893f7b187cbe40e4af752a5ffcabcdf","schema_version":"1.0","event_id":"sha256:8d9fa62c0f9665eb5529164602119c2d4893f7b187cbe40e4af752a5ffcabcdf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:6M3LGG5MG2QFGNH572V5B3J6SO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Scintillation Arc from FRB 20220912A","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Bing Zhang, Bo-Jun Wang, Can-Min Deng, Chen-Hui Niu, De-Jiang Zhou, Di Li, Dong-Zi Li, Fa-Yin Wang, Heng Xu, Jia-Rui Niu, Jin-Lin Han, Ke-Jia Lee, Pei Wang, Peng Jiang, Robert A. Main, Rui Luo, Wei-Wei Zhu, Wei-Yang Wang, Yi Feng, Yong-Hua Xu, Yong-Kun Zhang, Yuan-Pei Yang, Yu-Hao Zhu, Zi-Wei Wu","submitted_at":"2023-04-28T09:05:40Z","abstract_excerpt":"We present the interstellar scintillation analysis of fast radio burst (FRB) 20220912A during its extremely active episode in 2022 using data from the Five-hundred-meter Aperture Spherical Radio Telescope (FAST). We detect a scintillation arc in the FRB's secondary spectrum, which describes the power in terms of the scattered FRB signals' time delay and Doppler shift. The arc indicates that the scintillation is caused by a highly localized region of the ionized interstellar medium (IISM). Our analysis favors a Milky Way origin for the localized scattering medium but cannot rule out a host gala"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.14697","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/2304.14697/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":"2026-07-05T07:23:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kwa/jk1uP1XtZ8M5WDqvGliP6Hnb5MdYCdoQ4A1M1T8N/6GBV45vz32djbbzs+6xvKYlH+GpJYj1HlbrtMMZBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T09:19:16.801461Z"},"content_sha256":"5fa5ae9a108d3145b82e2d6d166ca6f26b8b4ac13b124415d8dc681302bbe745","schema_version":"1.0","event_id":"sha256:5fa5ae9a108d3145b82e2d6d166ca6f26b8b4ac13b124415d8dc681302bbe745"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6M3LGG5MG2QFGNH572V5B3J6SO/bundle.json","state_url":"https://pith.science/pith/6M3LGG5MG2QFGNH572V5B3J6SO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6M3LGG5MG2QFGNH572V5B3J6SO/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":"2026-08-06T09:19:16Z","links":{"resolver":"https://pith.science/pith/6M3LGG5MG2QFGNH572V5B3J6SO","bundle":"https://pith.science/pith/6M3LGG5MG2QFGNH572V5B3J6SO/bundle.json","state":"https://pith.science/pith/6M3LGG5MG2QFGNH572V5B3J6SO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6M3LGG5MG2QFGNH572V5B3J6SO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:6M3LGG5MG2QFGNH572V5B3J6SO","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":"247ad2f0a567815a4dd3fbfe6b281503b0d21dd9121a9776b44d37bd01b8f954","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-04-28T09:05:40Z","title_canon_sha256":"f4525eb5219a728652177e6020c0006c98417cf3574aeaa86730cfa5573fbabb"},"schema_version":"1.0","source":{"id":"2304.14697","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.14697","created_at":"2026-07-05T07:23:57Z"},{"alias_kind":"arxiv_version","alias_value":"2304.14697v2","created_at":"2026-07-05T07:23:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.14697","created_at":"2026-07-05T07:23:57Z"},{"alias_kind":"pith_short_12","alias_value":"6M3LGG5MG2QF","created_at":"2026-07-05T07:23:57Z"},{"alias_kind":"pith_short_16","alias_value":"6M3LGG5MG2QFGNH5","created_at":"2026-07-05T07:23:57Z"},{"alias_kind":"pith_short_8","alias_value":"6M3LGG5M","created_at":"2026-07-05T07:23:57Z"}],"graph_snapshots":[{"event_id":"sha256:5fa5ae9a108d3145b82e2d6d166ca6f26b8b4ac13b124415d8dc681302bbe745","target":"graph","created_at":"2026-07-05T07:23:57Z","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/2304.14697/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the interstellar scintillation analysis of fast radio burst (FRB) 20220912A during its extremely active episode in 2022 using data from the Five-hundred-meter Aperture Spherical Radio Telescope (FAST). We detect a scintillation arc in the FRB's secondary spectrum, which describes the power in terms of the scattered FRB signals' time delay and Doppler shift. The arc indicates that the scintillation is caused by a highly localized region of the ionized interstellar medium (IISM). Our analysis favors a Milky Way origin for the localized scattering medium but cannot rule out a host gala","authors_text":"Bing Zhang, Bo-Jun Wang, Can-Min Deng, Chen-Hui Niu, De-Jiang Zhou, Di Li, Dong-Zi Li, Fa-Yin Wang, Heng Xu, Jia-Rui Niu, Jin-Lin Han, Ke-Jia Lee, Pei Wang, Peng Jiang, Robert A. Main, Rui Luo, Wei-Wei Zhu, Wei-Yang Wang, Yi Feng, Yong-Hua Xu, Yong-Kun Zhang, Yuan-Pei Yang, Yu-Hao Zhu, Zi-Wei Wu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-04-28T09:05:40Z","title":"Scintillation Arc from FRB 20220912A"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.14697","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":"sha256:8d9fa62c0f9665eb5529164602119c2d4893f7b187cbe40e4af752a5ffcabcdf","target":"record","created_at":"2026-07-05T07:23:57Z","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":"247ad2f0a567815a4dd3fbfe6b281503b0d21dd9121a9776b44d37bd01b8f954","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-04-28T09:05:40Z","title_canon_sha256":"f4525eb5219a728652177e6020c0006c98417cf3574aeaa86730cfa5573fbabb"},"schema_version":"1.0","source":{"id":"2304.14697","kind":"arxiv","version":2}},"canonical_sha256":"f336b31bac36a05334fdfeabd0ed3e93b546536fef54ebd2360b0e4f74544358","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f336b31bac36a05334fdfeabd0ed3e93b546536fef54ebd2360b0e4f74544358","first_computed_at":"2026-07-05T07:23:57.301537Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:23:57.301537Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/uBE/30tLlrFE0KDSo5uMSiQS5F0tfKVxdiGVR/JXrVkDa2x1pO3GKGykAFvE9Bud3kSWK7bVgdj28O4WL8nCA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:23:57.302079Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.14697","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8d9fa62c0f9665eb5529164602119c2d4893f7b187cbe40e4af752a5ffcabcdf","sha256:5fa5ae9a108d3145b82e2d6d166ca6f26b8b4ac13b124415d8dc681302bbe745"],"state_sha256":"6b264566ab65296b01bdbe589a9913d59e5603d86a5801d7f7b57a1310d6d067"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7nzLB+0/Gr3UXBIbrEilyMIdoAxiqjjhoGIOI/VQZgOmkwjTGBU7BM2oo0I4A7+BHsRJ96gxdBDnv8z4vS4oCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T09:19:16.807111Z","bundle_sha256":"7dccbb00cb4b8a831cd244d32800da4283f036ded500c0e45c68acd173f24dc2"}}