{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:GEYQLENGBZG5RP3YHIK4FK4N7I","short_pith_number":"pith:GEYQLENG","canonical_record":{"source":{"id":"2412.10601","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2024-12-13T23:07:02Z","cross_cats_sorted":["physics.geo-ph"],"title_canon_sha256":"2b5b8705423d432a1964ca218516805855225fa11bdae9b48156c04010c4268b","abstract_canon_sha256":"5fadc3796bdc416df417341fa7a019dd9acdb3efab5ce997fdafcb3f06ecef53"},"schema_version":"1.0"},"canonical_sha256":"31310591a60e4dd8bf783a15c2ab8dfa08c319e05f28c7331f9f011f9f8afd35","source":{"kind":"arxiv","id":"2412.10601","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.10601","created_at":"2026-07-05T10:27:21Z"},{"alias_kind":"arxiv_version","alias_value":"2412.10601v2","created_at":"2026-07-05T10:27:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.10601","created_at":"2026-07-05T10:27:21Z"},{"alias_kind":"pith_short_12","alias_value":"GEYQLENGBZG5","created_at":"2026-07-05T10:27:21Z"},{"alias_kind":"pith_short_16","alias_value":"GEYQLENGBZG5RP3Y","created_at":"2026-07-05T10:27:21Z"},{"alias_kind":"pith_short_8","alias_value":"GEYQLENG","created_at":"2026-07-05T10:27:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:GEYQLENGBZG5RP3YHIK4FK4N7I","target":"record","payload":{"canonical_record":{"source":{"id":"2412.10601","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2024-12-13T23:07:02Z","cross_cats_sorted":["physics.geo-ph"],"title_canon_sha256":"2b5b8705423d432a1964ca218516805855225fa11bdae9b48156c04010c4268b","abstract_canon_sha256":"5fadc3796bdc416df417341fa7a019dd9acdb3efab5ce997fdafcb3f06ecef53"},"schema_version":"1.0"},"canonical_sha256":"31310591a60e4dd8bf783a15c2ab8dfa08c319e05f28c7331f9f011f9f8afd35","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:27:21.720669Z","signature_b64":"R5bWUx4KCGF9gYY368KFMm9IUHVOsgjLSSVh3bRHFPVuPuGuHonJW3USCXnev2T7Tp86Dns3NPftDQ2np0bUDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"31310591a60e4dd8bf783a15c2ab8dfa08c319e05f28c7331f9f011f9f8afd35","last_reissued_at":"2026-07-05T10:27:21.719999Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:27:21.719999Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.10601","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":"2026-07-05T10:27:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rWsFXb8xrwIJ4xD8j+hR9sF15D+uVP/F2aNE8EVNq/CKFEejnuBCTzWhGJFhZHQCIcD6Fn4V+dhtuyVKvw9IAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T16:31:02.880256Z"},"content_sha256":"f686f6f21d1c9f853d68bc74c29faafda5241e01914e55f10e0b2b92333bdfe4","schema_version":"1.0","event_id":"sha256:f686f6f21d1c9f853d68bc74c29faafda5241e01914e55f10e0b2b92333bdfe4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:GEYQLENGBZG5RP3YHIK4FK4N7I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A decade of the fast-varying ionospheric and magnetospheric magnetic fields from ground and multi-satellite observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.geo-ph"],"primary_cat":"physics.space-ph","authors_text":"Alexander Grayver, Jingtao Min","submitted_at":"2024-12-13T23:07:02Z","abstract_excerpt":"The time-varying geomagnetic field is a superposition of contributions from multiple internal and external current systems. A major source of geomagnetic variations at periods less than a few years are current systems external to the solid Earth, namely the ionospheric and magnetospheric currents, as well as associated induced currents. The separation of these three sources is mathematically underdetermined using either ground or satellite measurements alone, but becomes tractable when the two datasets are combined. Based on this concept, we developed a new geomagnetic field modelling approach"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.10601","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/2412.10601/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":"2026-07-05T10:27:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QRTuqT0LyzQ7F1r9QK+JZY84/RKUbq1lBXUhnciY1vJeerbX6vc92/p7lu2NfzRdloCbpBWzd39vJ75af8ccCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T16:31:02.880604Z"},"content_sha256":"b39bb37154b7c095c6dd9df98147db3cb78bd5847e49db9a00cefe65f4dea8a5","schema_version":"1.0","event_id":"sha256:b39bb37154b7c095c6dd9df98147db3cb78bd5847e49db9a00cefe65f4dea8a5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GEYQLENGBZG5RP3YHIK4FK4N7I/bundle.json","state_url":"https://pith.science/pith/GEYQLENGBZG5RP3YHIK4FK4N7I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GEYQLENGBZG5RP3YHIK4FK4N7I/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":"2026-08-18T16:31:02Z","links":{"resolver":"https://pith.science/pith/GEYQLENGBZG5RP3YHIK4FK4N7I","bundle":"https://pith.science/pith/GEYQLENGBZG5RP3YHIK4FK4N7I/bundle.json","state":"https://pith.science/pith/GEYQLENGBZG5RP3YHIK4FK4N7I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GEYQLENGBZG5RP3YHIK4FK4N7I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:GEYQLENGBZG5RP3YHIK4FK4N7I","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":"5fadc3796bdc416df417341fa7a019dd9acdb3efab5ce997fdafcb3f06ecef53","cross_cats_sorted":["physics.geo-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2024-12-13T23:07:02Z","title_canon_sha256":"2b5b8705423d432a1964ca218516805855225fa11bdae9b48156c04010c4268b"},"schema_version":"1.0","source":{"id":"2412.10601","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.10601","created_at":"2026-07-05T10:27:21Z"},{"alias_kind":"arxiv_version","alias_value":"2412.10601v2","created_at":"2026-07-05T10:27:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.10601","created_at":"2026-07-05T10:27:21Z"},{"alias_kind":"pith_short_12","alias_value":"GEYQLENGBZG5","created_at":"2026-07-05T10:27:21Z"},{"alias_kind":"pith_short_16","alias_value":"GEYQLENGBZG5RP3Y","created_at":"2026-07-05T10:27:21Z"},{"alias_kind":"pith_short_8","alias_value":"GEYQLENG","created_at":"2026-07-05T10:27:21Z"}],"graph_snapshots":[{"event_id":"sha256:b39bb37154b7c095c6dd9df98147db3cb78bd5847e49db9a00cefe65f4dea8a5","target":"graph","created_at":"2026-07-05T10:27:21Z","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/2412.10601/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The time-varying geomagnetic field is a superposition of contributions from multiple internal and external current systems. A major source of geomagnetic variations at periods less than a few years are current systems external to the solid Earth, namely the ionospheric and magnetospheric currents, as well as associated induced currents. The separation of these three sources is mathematically underdetermined using either ground or satellite measurements alone, but becomes tractable when the two datasets are combined. Based on this concept, we developed a new geomagnetic field modelling approach","authors_text":"Alexander Grayver, Jingtao Min","cross_cats":["physics.geo-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2024-12-13T23:07:02Z","title":"A decade of the fast-varying ionospheric and magnetospheric magnetic fields from ground and multi-satellite observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.10601","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:f686f6f21d1c9f853d68bc74c29faafda5241e01914e55f10e0b2b92333bdfe4","target":"record","created_at":"2026-07-05T10:27:21Z","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":"5fadc3796bdc416df417341fa7a019dd9acdb3efab5ce997fdafcb3f06ecef53","cross_cats_sorted":["physics.geo-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2024-12-13T23:07:02Z","title_canon_sha256":"2b5b8705423d432a1964ca218516805855225fa11bdae9b48156c04010c4268b"},"schema_version":"1.0","source":{"id":"2412.10601","kind":"arxiv","version":2}},"canonical_sha256":"31310591a60e4dd8bf783a15c2ab8dfa08c319e05f28c7331f9f011f9f8afd35","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"31310591a60e4dd8bf783a15c2ab8dfa08c319e05f28c7331f9f011f9f8afd35","first_computed_at":"2026-07-05T10:27:21.719999Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:27:21.719999Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"R5bWUx4KCGF9gYY368KFMm9IUHVOsgjLSSVh3bRHFPVuPuGuHonJW3USCXnev2T7Tp86Dns3NPftDQ2np0bUDg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:27:21.720669Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.10601","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f686f6f21d1c9f853d68bc74c29faafda5241e01914e55f10e0b2b92333bdfe4","sha256:b39bb37154b7c095c6dd9df98147db3cb78bd5847e49db9a00cefe65f4dea8a5"],"state_sha256":"9076c0a2cf7dfd33560bf99362a0f64f445e4a992b6b2aeb0fb6d35c30f7b80a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"96mxS6zS4bn4/y5y6mVFpANfEVtVMQ196tWLgTBTg2I6QWffI20pdd6sXl3SX2bddh5hqxawSBC3olYpqpbgCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T16:31:02.884073Z","bundle_sha256":"19047c1fb680c344c55c8699ddc41cf8d19dad8dcfd8ae21cc498fc690ff0807"}}