{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:I3CTAHYWVXXGBBW36KDEFMBATP","short_pith_number":"pith:I3CTAHYW","canonical_record":{"source":{"id":"1605.09608","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2016-05-31T12:55:25Z","cross_cats_sorted":[],"title_canon_sha256":"34f575f5f9cb215695de74efd2f3e51a6bd44b4cb3976caa2b783baf56ab7335","abstract_canon_sha256":"d20162bf408c655ee62805778edd5a1def6c0e925e06e0f776dbde083a49f350"},"schema_version":"1.0"},"canonical_sha256":"46c5301f16adee6086dbf28642b0209bde9493dc3f7433b7d6d6583ea856299a","source":{"kind":"arxiv","id":"1605.09608","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.09608","created_at":"2026-05-18T01:13:10Z"},{"alias_kind":"arxiv_version","alias_value":"1605.09608v1","created_at":"2026-05-18T01:13:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.09608","created_at":"2026-05-18T01:13:10Z"},{"alias_kind":"pith_short_12","alias_value":"I3CTAHYWVXXG","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"I3CTAHYWVXXGBBW3","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"I3CTAHYW","created_at":"2026-05-18T12:30:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:I3CTAHYWVXXGBBW36KDEFMBATP","target":"record","payload":{"canonical_record":{"source":{"id":"1605.09608","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2016-05-31T12:55:25Z","cross_cats_sorted":[],"title_canon_sha256":"34f575f5f9cb215695de74efd2f3e51a6bd44b4cb3976caa2b783baf56ab7335","abstract_canon_sha256":"d20162bf408c655ee62805778edd5a1def6c0e925e06e0f776dbde083a49f350"},"schema_version":"1.0"},"canonical_sha256":"46c5301f16adee6086dbf28642b0209bde9493dc3f7433b7d6d6583ea856299a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:13:10.489049Z","signature_b64":"iOjtzuiPlV9P1uahvXlPsOznaSi1LH8ZkH1Yv+NMUEfE6Jb7hOn2D9bTgbKcYTEhyBi6YLzVr3V1w6zSkOL8CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"46c5301f16adee6086dbf28642b0209bde9493dc3f7433b7d6d6583ea856299a","last_reissued_at":"2026-05-18T01:13:10.488717Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:13:10.488717Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1605.09608","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":"2026-05-18T01:13:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G7HX1Fz2ZOvfaujwKM/g6fWE4YisPTSsLMKuDseDNVzx7//ZGorrTjgLz1Vga/R+CCDwm1uTkBizERKvFPxQBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:49:03.136748Z"},"content_sha256":"d6366316b9faa97325053970bb4f0ecd28cf6ce4c1c1dd953a5a75f23134ba9a","schema_version":"1.0","event_id":"sha256:d6366316b9faa97325053970bb4f0ecd28cf6ce4c1c1dd953a5a75f23134ba9a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:I3CTAHYWVXXGBBW36KDEFMBATP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Estimation of cold plasma outflow during geomagnetic storms","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.space-ph","authors_text":"A. Barakat, A. Eriksson, A. Pedersen, B. Lybekk, C. Johnsen, D. Welling, K. Li, L. Baddeley, L. Maes, M. Andr\\'e, R. Chappell, R. Schunk, S. Haaland, V. Eccles","submitted_at":"2016-05-31T12:55:25Z","abstract_excerpt":"Low-energy ions of ionospheric origin constitute a significant contributor to the magnetospheric plasma population. Measuring cold ions is difficult though. Observations have to be done at sufficiently high altitudes and typically in regions of space where spacecraft attain a positive charge due to solar illumination. Cold ions are therefore shielded from the satellite particle detectors. Furthermore, spacecraft can only cover key regions of ion outflow during segments of their orbit, so additional complications arise if continuous longtime observations, such as during a geomagnetic storm, are"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.09608","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":""},"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":"2026-05-18T01:13:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M/UkF53octKCGcIV4UmRRC6ndUXgkpnWpFkC1cTN7DWqwQdgQbzK90u6Tbs8b/+uyKzdX5xx3xDGh20bUbPeBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:49:03.137105Z"},"content_sha256":"e53a105a9d38f26d7f08839aa38a46b7a8aefbc5510acaaf727143b9156b4ab3","schema_version":"1.0","event_id":"sha256:e53a105a9d38f26d7f08839aa38a46b7a8aefbc5510acaaf727143b9156b4ab3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I3CTAHYWVXXGBBW36KDEFMBATP/bundle.json","state_url":"https://pith.science/pith/I3CTAHYWVXXGBBW36KDEFMBATP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I3CTAHYWVXXGBBW36KDEFMBATP/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":"2026-05-28T06:49:03Z","links":{"resolver":"https://pith.science/pith/I3CTAHYWVXXGBBW36KDEFMBATP","bundle":"https://pith.science/pith/I3CTAHYWVXXGBBW36KDEFMBATP/bundle.json","state":"https://pith.science/pith/I3CTAHYWVXXGBBW36KDEFMBATP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I3CTAHYWVXXGBBW36KDEFMBATP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:I3CTAHYWVXXGBBW36KDEFMBATP","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":"d20162bf408c655ee62805778edd5a1def6c0e925e06e0f776dbde083a49f350","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2016-05-31T12:55:25Z","title_canon_sha256":"34f575f5f9cb215695de74efd2f3e51a6bd44b4cb3976caa2b783baf56ab7335"},"schema_version":"1.0","source":{"id":"1605.09608","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.09608","created_at":"2026-05-18T01:13:10Z"},{"alias_kind":"arxiv_version","alias_value":"1605.09608v1","created_at":"2026-05-18T01:13:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.09608","created_at":"2026-05-18T01:13:10Z"},{"alias_kind":"pith_short_12","alias_value":"I3CTAHYWVXXG","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"I3CTAHYWVXXGBBW3","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"I3CTAHYW","created_at":"2026-05-18T12:30:22Z"}],"graph_snapshots":[{"event_id":"sha256:e53a105a9d38f26d7f08839aa38a46b7a8aefbc5510acaaf727143b9156b4ab3","target":"graph","created_at":"2026-05-18T01:13:10Z","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":"Low-energy ions of ionospheric origin constitute a significant contributor to the magnetospheric plasma population. Measuring cold ions is difficult though. Observations have to be done at sufficiently high altitudes and typically in regions of space where spacecraft attain a positive charge due to solar illumination. Cold ions are therefore shielded from the satellite particle detectors. Furthermore, spacecraft can only cover key regions of ion outflow during segments of their orbit, so additional complications arise if continuous longtime observations, such as during a geomagnetic storm, are","authors_text":"A. Barakat, A. Eriksson, A. Pedersen, B. Lybekk, C. Johnsen, D. Welling, K. Li, L. Baddeley, L. Maes, M. Andr\\'e, R. Chappell, R. Schunk, S. Haaland, V. Eccles","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2016-05-31T12:55:25Z","title":"Estimation of cold plasma outflow during geomagnetic storms"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.09608","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:d6366316b9faa97325053970bb4f0ecd28cf6ce4c1c1dd953a5a75f23134ba9a","target":"record","created_at":"2026-05-18T01:13:10Z","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":"d20162bf408c655ee62805778edd5a1def6c0e925e06e0f776dbde083a49f350","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2016-05-31T12:55:25Z","title_canon_sha256":"34f575f5f9cb215695de74efd2f3e51a6bd44b4cb3976caa2b783baf56ab7335"},"schema_version":"1.0","source":{"id":"1605.09608","kind":"arxiv","version":1}},"canonical_sha256":"46c5301f16adee6086dbf28642b0209bde9493dc3f7433b7d6d6583ea856299a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"46c5301f16adee6086dbf28642b0209bde9493dc3f7433b7d6d6583ea856299a","first_computed_at":"2026-05-18T01:13:10.488717Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:13:10.488717Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iOjtzuiPlV9P1uahvXlPsOznaSi1LH8ZkH1Yv+NMUEfE6Jb7hOn2D9bTgbKcYTEhyBi6YLzVr3V1w6zSkOL8CA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:13:10.489049Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.09608","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6366316b9faa97325053970bb4f0ecd28cf6ce4c1c1dd953a5a75f23134ba9a","sha256:e53a105a9d38f26d7f08839aa38a46b7a8aefbc5510acaaf727143b9156b4ab3"],"state_sha256":"34ccc22ec6ff6ae614a8d04980aa424d76d47bf570b580911b3d480755a40400"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VmxRJT1UuCO6teXcwSY7/QqfShHpzXv26oEVGzvX+TGiSGs8Kg4/g28h8WOZ4vPVXeUMgLQ6D3gUOxfsFxbZAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T06:49:03.139129Z","bundle_sha256":"70562bd963d16275fc83122fd01c2db13a9675d2e0c44fe77b9aba65a19f3288"}}