{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:AXFCEF5PLAH4WYGWVG5YMV2DXU","short_pith_number":"pith:AXFCEF5P","canonical_record":{"source":{"id":"1909.05498","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-09-12T08:15:20Z","cross_cats_sorted":["physics.hist-ph"],"title_canon_sha256":"94f0e2c8f5fccdd5ed51dd9ab045079c754df7a409fe03445544d1252f6ea16b","abstract_canon_sha256":"f3dd915cfdfb58610882d76ba6432b6a7620dbeaf61a9379e6816f63330d7e22"},"schema_version":"1.0"},"canonical_sha256":"05ca2217af580fcb60d6a9bb865743bd3764de8590593ab97d345cca4efe0633","source":{"kind":"arxiv","id":"1909.05498","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.05498","created_at":"2026-07-05T00:04:15Z"},{"alias_kind":"arxiv_version","alias_value":"1909.05498v1","created_at":"2026-07-05T00:04:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.05498","created_at":"2026-07-05T00:04:15Z"},{"alias_kind":"pith_short_12","alias_value":"AXFCEF5PLAH4","created_at":"2026-07-05T00:04:15Z"},{"alias_kind":"pith_short_16","alias_value":"AXFCEF5PLAH4WYGW","created_at":"2026-07-05T00:04:15Z"},{"alias_kind":"pith_short_8","alias_value":"AXFCEF5P","created_at":"2026-07-05T00:04:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:AXFCEF5PLAH4WYGWVG5YMV2DXU","target":"record","payload":{"canonical_record":{"source":{"id":"1909.05498","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-09-12T08:15:20Z","cross_cats_sorted":["physics.hist-ph"],"title_canon_sha256":"94f0e2c8f5fccdd5ed51dd9ab045079c754df7a409fe03445544d1252f6ea16b","abstract_canon_sha256":"f3dd915cfdfb58610882d76ba6432b6a7620dbeaf61a9379e6816f63330d7e22"},"schema_version":"1.0"},"canonical_sha256":"05ca2217af580fcb60d6a9bb865743bd3764de8590593ab97d345cca4efe0633","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:04:15.008203Z","signature_b64":"ix6TSt7CIVzaPQn6mC1RaH4VCeIkeGQP8Ni7irWDZuxthZrH2NqksxsnpDVU4GfqRM1wmcq9PHhs/AAPbcIrBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"05ca2217af580fcb60d6a9bb865743bd3764de8590593ab97d345cca4efe0633","last_reissued_at":"2026-07-05T00:04:15.007759Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:04:15.007759Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1909.05498","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":"2026-07-05T00:04:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g4oKvMce0RBMvxQ5fpA++6Y1Xb6S3+Ch1b6Hpc0HZ5D3oCSyMOrplUecUa8sY2AauOFhOU8hDlsmAbHCA1beBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:28:51.351979Z"},"content_sha256":"d3ef56a45b49a0f06298915d2bb5f55a6c40b5f4c0ec41b777069ad0ba2552c2","schema_version":"1.0","event_id":"sha256:d3ef56a45b49a0f06298915d2bb5f55a6c40b5f4c0ec41b777069ad0ba2552c2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:AXFCEF5PLAH4WYGWVG5YMV2DXU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Earliest Candidates of Auroral Observations in Assyrian Astrological Reports: Insights on Solar Activity around 660 BCE","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.hist-ph"],"primary_cat":"astro-ph.SR","authors_text":"Fusa Miyake, Hisashi Hayakawa, Yasuyuki Mitsuma, Yusuke Ebihara","submitted_at":"2019-09-12T08:15:20Z","abstract_excerpt":"Auroral records found in historical archives and cosmogenic isotopes found in natural archives have served as sound proxies of coronal mass ejections (CMEs) and solar energetic particles (SEPs), respectively, for dates prior to the onset of telescopic sunspot observations in 1610. These space weather events constitute a significant threat to a modern civilization, because of its increasing dependency on an electronic infrastructure. Recent studies have identified multiple extreme space weather events derived from solar energetic particles (SEPs) in natural archives, such as the event in 660 BC"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.05498","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/1909.05498/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":"2026-07-05T00:04:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PjRqdCB9eB4krYBewxt+IamLxdvgkDQWF54/+o2kYOvP/ioLe+fbwKzWYe+K/7AkMjS/9yxMvanmfaWP7W0BCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:28:51.352615Z"},"content_sha256":"0f44b7a5f81580994f522837f429f59b522c83ec1c28d477f7c08bb712aa9343","schema_version":"1.0","event_id":"sha256:0f44b7a5f81580994f522837f429f59b522c83ec1c28d477f7c08bb712aa9343"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AXFCEF5PLAH4WYGWVG5YMV2DXU/bundle.json","state_url":"https://pith.science/pith/AXFCEF5PLAH4WYGWVG5YMV2DXU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AXFCEF5PLAH4WYGWVG5YMV2DXU/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":"2026-07-07T05:28:51Z","links":{"resolver":"https://pith.science/pith/AXFCEF5PLAH4WYGWVG5YMV2DXU","bundle":"https://pith.science/pith/AXFCEF5PLAH4WYGWVG5YMV2DXU/bundle.json","state":"https://pith.science/pith/AXFCEF5PLAH4WYGWVG5YMV2DXU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AXFCEF5PLAH4WYGWVG5YMV2DXU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:AXFCEF5PLAH4WYGWVG5YMV2DXU","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":"f3dd915cfdfb58610882d76ba6432b6a7620dbeaf61a9379e6816f63330d7e22","cross_cats_sorted":["physics.hist-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-09-12T08:15:20Z","title_canon_sha256":"94f0e2c8f5fccdd5ed51dd9ab045079c754df7a409fe03445544d1252f6ea16b"},"schema_version":"1.0","source":{"id":"1909.05498","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.05498","created_at":"2026-07-05T00:04:15Z"},{"alias_kind":"arxiv_version","alias_value":"1909.05498v1","created_at":"2026-07-05T00:04:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.05498","created_at":"2026-07-05T00:04:15Z"},{"alias_kind":"pith_short_12","alias_value":"AXFCEF5PLAH4","created_at":"2026-07-05T00:04:15Z"},{"alias_kind":"pith_short_16","alias_value":"AXFCEF5PLAH4WYGW","created_at":"2026-07-05T00:04:15Z"},{"alias_kind":"pith_short_8","alias_value":"AXFCEF5P","created_at":"2026-07-05T00:04:15Z"}],"graph_snapshots":[{"event_id":"sha256:0f44b7a5f81580994f522837f429f59b522c83ec1c28d477f7c08bb712aa9343","target":"graph","created_at":"2026-07-05T00:04:15Z","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/1909.05498/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Auroral records found in historical archives and cosmogenic isotopes found in natural archives have served as sound proxies of coronal mass ejections (CMEs) and solar energetic particles (SEPs), respectively, for dates prior to the onset of telescopic sunspot observations in 1610. These space weather events constitute a significant threat to a modern civilization, because of its increasing dependency on an electronic infrastructure. Recent studies have identified multiple extreme space weather events derived from solar energetic particles (SEPs) in natural archives, such as the event in 660 BC","authors_text":"Fusa Miyake, Hisashi Hayakawa, Yasuyuki Mitsuma, Yusuke Ebihara","cross_cats":["physics.hist-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-09-12T08:15:20Z","title":"The Earliest Candidates of Auroral Observations in Assyrian Astrological Reports: Insights on Solar Activity around 660 BCE"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.05498","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:d3ef56a45b49a0f06298915d2bb5f55a6c40b5f4c0ec41b777069ad0ba2552c2","target":"record","created_at":"2026-07-05T00:04:15Z","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":"f3dd915cfdfb58610882d76ba6432b6a7620dbeaf61a9379e6816f63330d7e22","cross_cats_sorted":["physics.hist-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-09-12T08:15:20Z","title_canon_sha256":"94f0e2c8f5fccdd5ed51dd9ab045079c754df7a409fe03445544d1252f6ea16b"},"schema_version":"1.0","source":{"id":"1909.05498","kind":"arxiv","version":1}},"canonical_sha256":"05ca2217af580fcb60d6a9bb865743bd3764de8590593ab97d345cca4efe0633","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"05ca2217af580fcb60d6a9bb865743bd3764de8590593ab97d345cca4efe0633","first_computed_at":"2026-07-05T00:04:15.007759Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:04:15.007759Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ix6TSt7CIVzaPQn6mC1RaH4VCeIkeGQP8Ni7irWDZuxthZrH2NqksxsnpDVU4GfqRM1wmcq9PHhs/AAPbcIrBg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:04:15.008203Z","signed_message":"canonical_sha256_bytes"},"source_id":"1909.05498","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d3ef56a45b49a0f06298915d2bb5f55a6c40b5f4c0ec41b777069ad0ba2552c2","sha256:0f44b7a5f81580994f522837f429f59b522c83ec1c28d477f7c08bb712aa9343"],"state_sha256":"3bfe0ad1366464b677e53841e2c3e63e7af94cf3f579859e3a6183763dd9478d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BH2Pw2xTxg8NPZp0FL6DIxScbM0M0OXb0kbFqpbsD61ja7NJWuWuCdVwyBxvWj221jlvkuL7F5a0qz5Ajp8PCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T05:28:51.356066Z","bundle_sha256":"7a2b550145cc0c6838db32fa45d01554a7461776a6e23356a7891a895ac68848"}}