{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:2QZC3O3ZP2LRTEBSHZJXBOYF4K","short_pith_number":"pith:2QZC3O3Z","canonical_record":{"source":{"id":"2104.08393","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-04-16T22:50:01Z","cross_cats_sorted":[],"title_canon_sha256":"2d5365a1128f9e2f57d4453d218caa3758f3bf212ec68faf2139019a1a21e0f5","abstract_canon_sha256":"f1ce2995c77b771f143060318d2fbe93e49c810973a55a932f64b45b5f04321e"},"schema_version":"1.0"},"canonical_sha256":"d4322dbb797e971990323e5370bb05e296cb2fa5657e4d4b771d37bb28bc8f2a","source":{"kind":"arxiv","id":"2104.08393","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.08393","created_at":"2026-07-05T03:14:14Z"},{"alias_kind":"arxiv_version","alias_value":"2104.08393v1","created_at":"2026-07-05T03:14:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.08393","created_at":"2026-07-05T03:14:14Z"},{"alias_kind":"pith_short_12","alias_value":"2QZC3O3ZP2LR","created_at":"2026-07-05T03:14:14Z"},{"alias_kind":"pith_short_16","alias_value":"2QZC3O3ZP2LRTEBS","created_at":"2026-07-05T03:14:14Z"},{"alias_kind":"pith_short_8","alias_value":"2QZC3O3Z","created_at":"2026-07-05T03:14:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:2QZC3O3ZP2LRTEBSHZJXBOYF4K","target":"record","payload":{"canonical_record":{"source":{"id":"2104.08393","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-04-16T22:50:01Z","cross_cats_sorted":[],"title_canon_sha256":"2d5365a1128f9e2f57d4453d218caa3758f3bf212ec68faf2139019a1a21e0f5","abstract_canon_sha256":"f1ce2995c77b771f143060318d2fbe93e49c810973a55a932f64b45b5f04321e"},"schema_version":"1.0"},"canonical_sha256":"d4322dbb797e971990323e5370bb05e296cb2fa5657e4d4b771d37bb28bc8f2a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:14:14.152725Z","signature_b64":"lK6x/ze3hx8GLJwg4ZwV9QLJ/9L9WOV6vxuA51V+eKozTm6+83QRg6faL+gPtKMm2pLmUsEtyiyByWLBiu0NDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d4322dbb797e971990323e5370bb05e296cb2fa5657e4d4b771d37bb28bc8f2a","last_reissued_at":"2026-07-05T03:14:14.152297Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:14:14.152297Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2104.08393","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":"2026-07-05T03:14:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9DhaMoWKo8pQ1A68EEJB7sobIcyTKi6BMkhk5L1PNEZeQYU/C99gOV+VA0SqJ6+8tz5qLWTvnvFkeGh0kTFpBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T15:57:53.827012Z"},"content_sha256":"e4f8d04a8997fa3b6ea3df44b0c987d047eaa6913e67d214553a893641f008d6","schema_version":"1.0","event_id":"sha256:e4f8d04a8997fa3b6ea3df44b0c987d047eaa6913e67d214553a893641f008d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:2QZC3O3ZP2LRTEBSHZJXBOYF4K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Solar wind rotation rate and shear at coronal hole boundaries, possible consequences for magnetic field inversions","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Kouloumvakos, A. P. Rouillard, A. S. Brun, B. Lavraud, L. Griton, N. Fargette, N. Poirier, R. F. Pinto, R. Kieokaew","submitted_at":"2021-04-16T22:50:01Z","abstract_excerpt":"In-situ measurements by several spacecraft have revealed that the solar wind is frequently perturbed by transient structures (magnetic folds, jets, waves, flux-ropes) that propagate rapidly away from the Sun over large distances. Parker Solar Probe has detected frequent rotations of the magnetic field vector at small heliocentric distances, accompanied by surprisingly large solar wind rotation rates. The physical origin of such magnetic field bends, the conditions for their survival across the interplanetary space, and their relation to solar wind rotation are yet to be clearly understood. We "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.08393","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/2104.08393/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":"2026-07-05T03:14:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2HE2H4nq07V/UrzxzYlDgH+n8S0snsM5XCUFgGmGtVi420S1t5AsCty9JQV4bxxgobBQco9+8bl34jWE40SeBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T15:57:53.827431Z"},"content_sha256":"afb8ef56de52c407671344aa6ae0e53005083d050749b109b7bc5c4d508a7610","schema_version":"1.0","event_id":"sha256:afb8ef56de52c407671344aa6ae0e53005083d050749b109b7bc5c4d508a7610"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2QZC3O3ZP2LRTEBSHZJXBOYF4K/bundle.json","state_url":"https://pith.science/pith/2QZC3O3ZP2LRTEBSHZJXBOYF4K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2QZC3O3ZP2LRTEBSHZJXBOYF4K/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":"2026-07-05T15:57:53Z","links":{"resolver":"https://pith.science/pith/2QZC3O3ZP2LRTEBSHZJXBOYF4K","bundle":"https://pith.science/pith/2QZC3O3ZP2LRTEBSHZJXBOYF4K/bundle.json","state":"https://pith.science/pith/2QZC3O3ZP2LRTEBSHZJXBOYF4K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2QZC3O3ZP2LRTEBSHZJXBOYF4K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:2QZC3O3ZP2LRTEBSHZJXBOYF4K","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":"f1ce2995c77b771f143060318d2fbe93e49c810973a55a932f64b45b5f04321e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-04-16T22:50:01Z","title_canon_sha256":"2d5365a1128f9e2f57d4453d218caa3758f3bf212ec68faf2139019a1a21e0f5"},"schema_version":"1.0","source":{"id":"2104.08393","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.08393","created_at":"2026-07-05T03:14:14Z"},{"alias_kind":"arxiv_version","alias_value":"2104.08393v1","created_at":"2026-07-05T03:14:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.08393","created_at":"2026-07-05T03:14:14Z"},{"alias_kind":"pith_short_12","alias_value":"2QZC3O3ZP2LR","created_at":"2026-07-05T03:14:14Z"},{"alias_kind":"pith_short_16","alias_value":"2QZC3O3ZP2LRTEBS","created_at":"2026-07-05T03:14:14Z"},{"alias_kind":"pith_short_8","alias_value":"2QZC3O3Z","created_at":"2026-07-05T03:14:14Z"}],"graph_snapshots":[{"event_id":"sha256:afb8ef56de52c407671344aa6ae0e53005083d050749b109b7bc5c4d508a7610","target":"graph","created_at":"2026-07-05T03:14:14Z","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/2104.08393/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In-situ measurements by several spacecraft have revealed that the solar wind is frequently perturbed by transient structures (magnetic folds, jets, waves, flux-ropes) that propagate rapidly away from the Sun over large distances. Parker Solar Probe has detected frequent rotations of the magnetic field vector at small heliocentric distances, accompanied by surprisingly large solar wind rotation rates. The physical origin of such magnetic field bends, the conditions for their survival across the interplanetary space, and their relation to solar wind rotation are yet to be clearly understood. We ","authors_text":"A. Kouloumvakos, A. P. Rouillard, A. S. Brun, B. Lavraud, L. Griton, N. Fargette, N. Poirier, R. F. Pinto, R. Kieokaew","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-04-16T22:50:01Z","title":"Solar wind rotation rate and shear at coronal hole boundaries, possible consequences for magnetic field inversions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.08393","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:e4f8d04a8997fa3b6ea3df44b0c987d047eaa6913e67d214553a893641f008d6","target":"record","created_at":"2026-07-05T03:14:14Z","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":"f1ce2995c77b771f143060318d2fbe93e49c810973a55a932f64b45b5f04321e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-04-16T22:50:01Z","title_canon_sha256":"2d5365a1128f9e2f57d4453d218caa3758f3bf212ec68faf2139019a1a21e0f5"},"schema_version":"1.0","source":{"id":"2104.08393","kind":"arxiv","version":1}},"canonical_sha256":"d4322dbb797e971990323e5370bb05e296cb2fa5657e4d4b771d37bb28bc8f2a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d4322dbb797e971990323e5370bb05e296cb2fa5657e4d4b771d37bb28bc8f2a","first_computed_at":"2026-07-05T03:14:14.152297Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:14:14.152297Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lK6x/ze3hx8GLJwg4ZwV9QLJ/9L9WOV6vxuA51V+eKozTm6+83QRg6faL+gPtKMm2pLmUsEtyiyByWLBiu0NDA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:14:14.152725Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.08393","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e4f8d04a8997fa3b6ea3df44b0c987d047eaa6913e67d214553a893641f008d6","sha256:afb8ef56de52c407671344aa6ae0e53005083d050749b109b7bc5c4d508a7610"],"state_sha256":"505eec996703744c72b4ede3067299fa73134837c997991d54235997afdaf379"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K0aMz4hFqeCtCg5DLmoa8fFnXVdor/zzlQ1k5MUYo7JBiyK5fa0BhEt1PN+68gAdMQaFZuMnTUdZfjUv6ajcCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T15:57:53.829967Z","bundle_sha256":"ca56b21967b8cdbb393e15a219efa1efc026d599f895ef81675db405b9f4bbdd"}}