{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:J5I36G3IBRPXFEO35QZJXSRJHB","short_pith_number":"pith:J5I36G3I","canonical_record":{"source":{"id":"2202.04216","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-02-09T01:17:34Z","cross_cats_sorted":["physics.plasm-ph","physics.space-ph"],"title_canon_sha256":"03055f588bb942b09b853a2f3a011a5687fd6e861f275213764acc2ee34e6a7f","abstract_canon_sha256":"df5cacbabe3995d08e70120550f1fdb9d0238bdad15acd91917a5570188f606c"},"schema_version":"1.0"},"canonical_sha256":"4f51bf1b680c5f7291dbec329bca29387a7e9f74f4477658221f651f7038bdcb","source":{"kind":"arxiv","id":"2202.04216","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.04216","created_at":"2026-07-05T04:15:59Z"},{"alias_kind":"arxiv_version","alias_value":"2202.04216v1","created_at":"2026-07-05T04:15:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.04216","created_at":"2026-07-05T04:15:59Z"},{"alias_kind":"pith_short_12","alias_value":"J5I36G3IBRPX","created_at":"2026-07-05T04:15:59Z"},{"alias_kind":"pith_short_16","alias_value":"J5I36G3IBRPXFEO3","created_at":"2026-07-05T04:15:59Z"},{"alias_kind":"pith_short_8","alias_value":"J5I36G3I","created_at":"2026-07-05T04:15:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:J5I36G3IBRPXFEO35QZJXSRJHB","target":"record","payload":{"canonical_record":{"source":{"id":"2202.04216","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-02-09T01:17:34Z","cross_cats_sorted":["physics.plasm-ph","physics.space-ph"],"title_canon_sha256":"03055f588bb942b09b853a2f3a011a5687fd6e861f275213764acc2ee34e6a7f","abstract_canon_sha256":"df5cacbabe3995d08e70120550f1fdb9d0238bdad15acd91917a5570188f606c"},"schema_version":"1.0"},"canonical_sha256":"4f51bf1b680c5f7291dbec329bca29387a7e9f74f4477658221f651f7038bdcb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:15:59.260463Z","signature_b64":"fqFGAdO9SAxi1BPnZkQxwmI1EbaYYE0d6z+4nQNc4bmeOJOOe7wOs7Z0gipNVZRlGGjYJ9wbh+Fo+MhQ5a+3Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4f51bf1b680c5f7291dbec329bca29387a7e9f74f4477658221f651f7038bdcb","last_reissued_at":"2026-07-05T04:15:59.260005Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:15:59.260005Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2202.04216","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":"2026-07-05T04:15:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/r3mbr4KZwGZgZQtKqU4nxLFZrJYu/hAeQEdhglghXoOFuOoDIzDooBOFolSn04fXGZcoEORvSNXXCRdI9MCAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:27:12.421473Z"},"content_sha256":"bc24cbad7d92025202d741bf9e93eed9430cd8db30c5ac72dfba5fcfd6c96760","schema_version":"1.0","event_id":"sha256:bc24cbad7d92025202d741bf9e93eed9430cd8db30c5ac72dfba5fcfd6c96760"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:J5I36G3IBRPXFEO35QZJXSRJHB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic Switchback Occurrence Rates in the Inner Heliosphere: Parker Solar Probe and 1 au","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.plasm-ph","physics.space-ph"],"primary_cat":"astro-ph.SR","authors_text":"Antonella Greco, Francesco Pecora, Leonardo Primavera, Riddhi Bandyopadhyay, Rohit Chhiber, Sergio Servidio, William H. Matthaeus","submitted_at":"2022-02-09T01:17:34Z","abstract_excerpt":"The subject of switchbacks, defined either as large angular deflections or polarity reversals of the magnetic field, has generated substantial interest in the space physics community since the launch of Parker Solar Probe (PSP) in 2018. Previous studies have characterized switchbacks in several different ways, and have been restricted to data available from the first few orbits. Here, we analyze the frequency of occurrence of switchbacks per unit distance for the first full eight orbits of PSP. In this work, are considered switchback only the events that reverse the sign of magnetic field rela"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.04216","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/2202.04216/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":"2026-07-05T04:15:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YPdUVAhiN3EQpI3+/78yG7Sos1l4RaATlwCqxLcZ/+I59Duzqv+ChAFZ+HBPbriJOVViLKBhOktaccAMqkwVCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:27:12.421975Z"},"content_sha256":"81624ceaf52ae24b0a61f74bc93573391560449c2f8429715b82079cd64822b6","schema_version":"1.0","event_id":"sha256:81624ceaf52ae24b0a61f74bc93573391560449c2f8429715b82079cd64822b6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J5I36G3IBRPXFEO35QZJXSRJHB/bundle.json","state_url":"https://pith.science/pith/J5I36G3IBRPXFEO35QZJXSRJHB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J5I36G3IBRPXFEO35QZJXSRJHB/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":"2026-08-03T18:27:12Z","links":{"resolver":"https://pith.science/pith/J5I36G3IBRPXFEO35QZJXSRJHB","bundle":"https://pith.science/pith/J5I36G3IBRPXFEO35QZJXSRJHB/bundle.json","state":"https://pith.science/pith/J5I36G3IBRPXFEO35QZJXSRJHB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J5I36G3IBRPXFEO35QZJXSRJHB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:J5I36G3IBRPXFEO35QZJXSRJHB","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":"df5cacbabe3995d08e70120550f1fdb9d0238bdad15acd91917a5570188f606c","cross_cats_sorted":["physics.plasm-ph","physics.space-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-02-09T01:17:34Z","title_canon_sha256":"03055f588bb942b09b853a2f3a011a5687fd6e861f275213764acc2ee34e6a7f"},"schema_version":"1.0","source":{"id":"2202.04216","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.04216","created_at":"2026-07-05T04:15:59Z"},{"alias_kind":"arxiv_version","alias_value":"2202.04216v1","created_at":"2026-07-05T04:15:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.04216","created_at":"2026-07-05T04:15:59Z"},{"alias_kind":"pith_short_12","alias_value":"J5I36G3IBRPX","created_at":"2026-07-05T04:15:59Z"},{"alias_kind":"pith_short_16","alias_value":"J5I36G3IBRPXFEO3","created_at":"2026-07-05T04:15:59Z"},{"alias_kind":"pith_short_8","alias_value":"J5I36G3I","created_at":"2026-07-05T04:15:59Z"}],"graph_snapshots":[{"event_id":"sha256:81624ceaf52ae24b0a61f74bc93573391560449c2f8429715b82079cd64822b6","target":"graph","created_at":"2026-07-05T04:15:59Z","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/2202.04216/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The subject of switchbacks, defined either as large angular deflections or polarity reversals of the magnetic field, has generated substantial interest in the space physics community since the launch of Parker Solar Probe (PSP) in 2018. Previous studies have characterized switchbacks in several different ways, and have been restricted to data available from the first few orbits. Here, we analyze the frequency of occurrence of switchbacks per unit distance for the first full eight orbits of PSP. In this work, are considered switchback only the events that reverse the sign of magnetic field rela","authors_text":"Antonella Greco, Francesco Pecora, Leonardo Primavera, Riddhi Bandyopadhyay, Rohit Chhiber, Sergio Servidio, William H. Matthaeus","cross_cats":["physics.plasm-ph","physics.space-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-02-09T01:17:34Z","title":"Magnetic Switchback Occurrence Rates in the Inner Heliosphere: Parker Solar Probe and 1 au"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.04216","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:bc24cbad7d92025202d741bf9e93eed9430cd8db30c5ac72dfba5fcfd6c96760","target":"record","created_at":"2026-07-05T04:15:59Z","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":"df5cacbabe3995d08e70120550f1fdb9d0238bdad15acd91917a5570188f606c","cross_cats_sorted":["physics.plasm-ph","physics.space-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-02-09T01:17:34Z","title_canon_sha256":"03055f588bb942b09b853a2f3a011a5687fd6e861f275213764acc2ee34e6a7f"},"schema_version":"1.0","source":{"id":"2202.04216","kind":"arxiv","version":1}},"canonical_sha256":"4f51bf1b680c5f7291dbec329bca29387a7e9f74f4477658221f651f7038bdcb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4f51bf1b680c5f7291dbec329bca29387a7e9f74f4477658221f651f7038bdcb","first_computed_at":"2026-07-05T04:15:59.260005Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:15:59.260005Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fqFGAdO9SAxi1BPnZkQxwmI1EbaYYE0d6z+4nQNc4bmeOJOOe7wOs7Z0gipNVZRlGGjYJ9wbh+Fo+MhQ5a+3Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T04:15:59.260463Z","signed_message":"canonical_sha256_bytes"},"source_id":"2202.04216","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc24cbad7d92025202d741bf9e93eed9430cd8db30c5ac72dfba5fcfd6c96760","sha256:81624ceaf52ae24b0a61f74bc93573391560449c2f8429715b82079cd64822b6"],"state_sha256":"7f9b85efc8097b16fd18e23bf4fc4e611796aedb87570c67cf8bdec42fb82c02"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6kJ4puPpJQ6pFomLlP0kINbwgGkPRULeI/XWTJzuIccL6xxbf9rFj+ZTMfzo3jdW+KjH4W1nzAIAA4CocfElCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T18:27:12.427420Z","bundle_sha256":"ce4a1ae305ff3d2c156fbd5ec2de85a343add99eade1a94777699129f5638790"}}