{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:FIEZPV4YDXDHRZIFJKMJAKMKBS","short_pith_number":"pith:FIEZPV4Y","canonical_record":{"source":{"id":"1405.4996","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-05-20T09:06:43Z","cross_cats_sorted":["physics.geo-ph","physics.space-ph"],"title_canon_sha256":"495dac4cb6bdc06e736d8cb8d8c1f1a53525872d3d3375485dce27a7460327a8","abstract_canon_sha256":"752ae78d36b3090469ffc69a4819d52b42ce6d5452a35d4e8e69947e2ec39134"},"schema_version":"1.0"},"canonical_sha256":"2a0997d7981dc678e5054a9890298a0c99c28c6f708b756a1bbea8259b3bd94b","source":{"kind":"arxiv","id":"1405.4996","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.4996","created_at":"2026-05-18T02:51:32Z"},{"alias_kind":"arxiv_version","alias_value":"1405.4996v1","created_at":"2026-05-18T02:51:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.4996","created_at":"2026-05-18T02:51:32Z"},{"alias_kind":"pith_short_12","alias_value":"FIEZPV4YDXDH","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FIEZPV4YDXDHRZIF","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FIEZPV4Y","created_at":"2026-05-18T12:28:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:FIEZPV4YDXDHRZIFJKMJAKMKBS","target":"record","payload":{"canonical_record":{"source":{"id":"1405.4996","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-05-20T09:06:43Z","cross_cats_sorted":["physics.geo-ph","physics.space-ph"],"title_canon_sha256":"495dac4cb6bdc06e736d8cb8d8c1f1a53525872d3d3375485dce27a7460327a8","abstract_canon_sha256":"752ae78d36b3090469ffc69a4819d52b42ce6d5452a35d4e8e69947e2ec39134"},"schema_version":"1.0"},"canonical_sha256":"2a0997d7981dc678e5054a9890298a0c99c28c6f708b756a1bbea8259b3bd94b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:51:32.426400Z","signature_b64":"xsF8aGwPksQVLWKQPPcmgFMIIqPTXkB/kb7XCoe1GPZd08sIpFLiOyVSFMfs3dZ8TYBOCyHXCrTa78D9NtArAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2a0997d7981dc678e5054a9890298a0c99c28c6f708b756a1bbea8259b3bd94b","last_reissued_at":"2026-05-18T02:51:32.425821Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:51:32.425821Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1405.4996","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":"2026-05-18T02:51:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"23OHwX5J31p5uNyZ979+TOio3rZvAopb8Bm2Pi5JkH+A1mJZjrdC15LcKIB/wDT2jqnonMlFZWOMe4lokcHWDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:19:14.810749Z"},"content_sha256":"40e815ec463dd70fe1bfcf2381f6413ed1b18d586d4061cb59608aeef2ff3400","schema_version":"1.0","event_id":"sha256:40e815ec463dd70fe1bfcf2381f6413ed1b18d586d4061cb59608aeef2ff3400"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:FIEZPV4YDXDHRZIFJKMJAKMKBS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Hyperbolic Decay of the Dst Index during the Recovery Phase of Intense Geomagnetic Storms","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.geo-ph","physics.space-ph"],"primary_cat":"astro-ph.EP","authors_text":"C. Cid, E. Saiz, J. Aguado, Y. Cerrato","submitted_at":"2014-05-20T09:06:43Z","abstract_excerpt":"What one commonly considers for reproducing the recovery phase of magnetosphere, as seen by the Dst index, is exponential function. However, the magnetosphere recovers faster in the first hours than in the late recovery phase. The early steepness followed by the late smoothness in the magnetospheric response is a feature that leads to the proposal of a hyperbolic decay function to reproduce the recovery phase, instead of the exponential function. A superposed epoch analysis of recovery phases of intense storms from 1963-2006 was performed, categorizing the storms by their intensity into five s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.4996","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":"2026-05-18T02:51:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c4jvulhubAcZC7ygQMs3N4mMSegxTHrQNIEmKgXvgvj01Wak0V7hpjbPFURBehLi/fVnRwsHOiHrnM2z64LfDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:19:14.811300Z"},"content_sha256":"432acbb032ff7f5d246712610558fa67b27dde087b57d4e1b1f36a075abaf18d","schema_version":"1.0","event_id":"sha256:432acbb032ff7f5d246712610558fa67b27dde087b57d4e1b1f36a075abaf18d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FIEZPV4YDXDHRZIFJKMJAKMKBS/bundle.json","state_url":"https://pith.science/pith/FIEZPV4YDXDHRZIFJKMJAKMKBS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FIEZPV4YDXDHRZIFJKMJAKMKBS/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":"2026-05-30T17:19:14Z","links":{"resolver":"https://pith.science/pith/FIEZPV4YDXDHRZIFJKMJAKMKBS","bundle":"https://pith.science/pith/FIEZPV4YDXDHRZIFJKMJAKMKBS/bundle.json","state":"https://pith.science/pith/FIEZPV4YDXDHRZIFJKMJAKMKBS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FIEZPV4YDXDHRZIFJKMJAKMKBS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:FIEZPV4YDXDHRZIFJKMJAKMKBS","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":"752ae78d36b3090469ffc69a4819d52b42ce6d5452a35d4e8e69947e2ec39134","cross_cats_sorted":["physics.geo-ph","physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-05-20T09:06:43Z","title_canon_sha256":"495dac4cb6bdc06e736d8cb8d8c1f1a53525872d3d3375485dce27a7460327a8"},"schema_version":"1.0","source":{"id":"1405.4996","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.4996","created_at":"2026-05-18T02:51:32Z"},{"alias_kind":"arxiv_version","alias_value":"1405.4996v1","created_at":"2026-05-18T02:51:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.4996","created_at":"2026-05-18T02:51:32Z"},{"alias_kind":"pith_short_12","alias_value":"FIEZPV4YDXDH","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FIEZPV4YDXDHRZIF","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FIEZPV4Y","created_at":"2026-05-18T12:28:28Z"}],"graph_snapshots":[{"event_id":"sha256:432acbb032ff7f5d246712610558fa67b27dde087b57d4e1b1f36a075abaf18d","target":"graph","created_at":"2026-05-18T02:51:32Z","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":"What one commonly considers for reproducing the recovery phase of magnetosphere, as seen by the Dst index, is exponential function. However, the magnetosphere recovers faster in the first hours than in the late recovery phase. The early steepness followed by the late smoothness in the magnetospheric response is a feature that leads to the proposal of a hyperbolic decay function to reproduce the recovery phase, instead of the exponential function. A superposed epoch analysis of recovery phases of intense storms from 1963-2006 was performed, categorizing the storms by their intensity into five s","authors_text":"C. Cid, E. Saiz, J. Aguado, Y. Cerrato","cross_cats":["physics.geo-ph","physics.space-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-05-20T09:06:43Z","title":"A Hyperbolic Decay of the Dst Index during the Recovery Phase of Intense Geomagnetic Storms"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.4996","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":"sha256:40e815ec463dd70fe1bfcf2381f6413ed1b18d586d4061cb59608aeef2ff3400","target":"record","created_at":"2026-05-18T02:51:32Z","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":"752ae78d36b3090469ffc69a4819d52b42ce6d5452a35d4e8e69947e2ec39134","cross_cats_sorted":["physics.geo-ph","physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-05-20T09:06:43Z","title_canon_sha256":"495dac4cb6bdc06e736d8cb8d8c1f1a53525872d3d3375485dce27a7460327a8"},"schema_version":"1.0","source":{"id":"1405.4996","kind":"arxiv","version":1}},"canonical_sha256":"2a0997d7981dc678e5054a9890298a0c99c28c6f708b756a1bbea8259b3bd94b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2a0997d7981dc678e5054a9890298a0c99c28c6f708b756a1bbea8259b3bd94b","first_computed_at":"2026-05-18T02:51:32.425821Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:51:32.425821Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xsF8aGwPksQVLWKQPPcmgFMIIqPTXkB/kb7XCoe1GPZd08sIpFLiOyVSFMfs3dZ8TYBOCyHXCrTa78D9NtArAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:51:32.426400Z","signed_message":"canonical_sha256_bytes"},"source_id":"1405.4996","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:40e815ec463dd70fe1bfcf2381f6413ed1b18d586d4061cb59608aeef2ff3400","sha256:432acbb032ff7f5d246712610558fa67b27dde087b57d4e1b1f36a075abaf18d"],"state_sha256":"502623f629ea9f3258e9b8da692ce01cb77cd4511658d687e0bc02ff9fc620cb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UB/N+7MCLytUlefKHWfSo1MAymejpEJb8ypqEpwJS7eILCfsJ6Y5DbQc51dKxcMVKOEJfclWBP7DlV1v97JjDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T17:19:14.814076Z","bundle_sha256":"6187ce3109de7506dee58f424b3704ce08d8d24a0b11052a5a48aecee5798cd7"}}