{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:5UR7LEM2T6IIJRPH777S422JR2","short_pith_number":"pith:5UR7LEM2","canonical_record":{"source":{"id":"2206.04644","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-06-09T17:39:51Z","cross_cats_sorted":[],"title_canon_sha256":"b11a030056096f6c038b224e6697598b734f11bec704d8eda690bfc59b73618d","abstract_canon_sha256":"f605b60435e1e2f3ab6b7b33d027a2615e09bf1e62a5b5d60259fe0a3d9ad7eb"},"schema_version":"1.0"},"canonical_sha256":"ed23f5919a9f9084c5e7ffff2e6b498e813a917c541b7e3412b678a3341aa8df","source":{"kind":"arxiv","id":"2206.04644","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2206.04644","created_at":"2026-07-05T04:45:22Z"},{"alias_kind":"arxiv_version","alias_value":"2206.04644v1","created_at":"2026-07-05T04:45:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.04644","created_at":"2026-07-05T04:45:22Z"},{"alias_kind":"pith_short_12","alias_value":"5UR7LEM2T6II","created_at":"2026-07-05T04:45:22Z"},{"alias_kind":"pith_short_16","alias_value":"5UR7LEM2T6IIJRPH","created_at":"2026-07-05T04:45:22Z"},{"alias_kind":"pith_short_8","alias_value":"5UR7LEM2","created_at":"2026-07-05T04:45:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:5UR7LEM2T6IIJRPH777S422JR2","target":"record","payload":{"canonical_record":{"source":{"id":"2206.04644","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-06-09T17:39:51Z","cross_cats_sorted":[],"title_canon_sha256":"b11a030056096f6c038b224e6697598b734f11bec704d8eda690bfc59b73618d","abstract_canon_sha256":"f605b60435e1e2f3ab6b7b33d027a2615e09bf1e62a5b5d60259fe0a3d9ad7eb"},"schema_version":"1.0"},"canonical_sha256":"ed23f5919a9f9084c5e7ffff2e6b498e813a917c541b7e3412b678a3341aa8df","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:45:22.776199Z","signature_b64":"0s68CwYuiS34bYrzv7DTr0DqbY2a15QDaP/ctCXtOxec2tduvuu+SrIlRp1C/PQxk4/n9f4+EO6h0qcDg0gUBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ed23f5919a9f9084c5e7ffff2e6b498e813a917c541b7e3412b678a3341aa8df","last_reissued_at":"2026-07-05T04:45:22.775797Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:45:22.775797Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2206.04644","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":"2026-07-05T04:45:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I9WvyQxceU/dbYAZ3H+ofZIFDftOgdMrjENI2oTuAXYUK0bW6AvRPsOYN2F3IK1yPeIzS9JYH78I6Y4eUmjkDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T06:00:40.155940Z"},"content_sha256":"5d9237df88db3275dbf5b7877cc898f6cc7f0d7956ba3654253cf5ce03e75487","schema_version":"1.0","event_id":"sha256:5d9237df88db3275dbf5b7877cc898f6cc7f0d7956ba3654253cf5ce03e75487"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:5UR7LEM2T6IIJRPH777S422JR2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantifying Properties of Photospheric Magnetic Cancellations in the Quiet Sun Internetwork","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Dennis Tilipman, Francesca Zuccarello, Ilaria Ermolli, Luc Rouppe van der Voort, Mariachiara Falco, Maria D. Kazachenko, Salvatore Guglielmino, Serena Criscuoli, Shahin Jafarzadeh, Vincent E. Ledvina","submitted_at":"2022-06-09T17:39:51Z","abstract_excerpt":"We analyzed spectropolarimetric data from the Swedish 1-meter Solar Telescope to investigate physical properties of small-scale magnetic cancellations in the quiet Sun photosphere. Specifically, we looked at the full Stokes polarization profiles along the Fe I 557.6 nm and of the Fe I 630.1 nm lines measured by CRisp Imaging SpectroPolarimeter (CRISP) to study temporal evolution of the line-of-sight (LOS) magnetic field during 42.5 minutes of quiet Sun evolution. From this magnetogram sequence, we visually identified 38 cancellation events. We then used Yet Another Feature Tracking Algorithm ("},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.04644","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/2206.04644/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":"2026-07-05T04:45:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"idTcG9OKVV5jJNEcwMoIc3r4RF/6/lzLn72138HpurkCT9t3Up7ED2bgIXg6GFRfXuLGgc0EhrEjHv/ztb8VAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T06:00:40.156342Z"},"content_sha256":"96ae04d85d10707d804f1c8227991f260ee49b62171325209d163cd44ddda600","schema_version":"1.0","event_id":"sha256:96ae04d85d10707d804f1c8227991f260ee49b62171325209d163cd44ddda600"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5UR7LEM2T6IIJRPH777S422JR2/bundle.json","state_url":"https://pith.science/pith/5UR7LEM2T6IIJRPH777S422JR2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5UR7LEM2T6IIJRPH777S422JR2/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":"2026-07-09T06:00:40Z","links":{"resolver":"https://pith.science/pith/5UR7LEM2T6IIJRPH777S422JR2","bundle":"https://pith.science/pith/5UR7LEM2T6IIJRPH777S422JR2/bundle.json","state":"https://pith.science/pith/5UR7LEM2T6IIJRPH777S422JR2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5UR7LEM2T6IIJRPH777S422JR2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:5UR7LEM2T6IIJRPH777S422JR2","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":"f605b60435e1e2f3ab6b7b33d027a2615e09bf1e62a5b5d60259fe0a3d9ad7eb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-06-09T17:39:51Z","title_canon_sha256":"b11a030056096f6c038b224e6697598b734f11bec704d8eda690bfc59b73618d"},"schema_version":"1.0","source":{"id":"2206.04644","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2206.04644","created_at":"2026-07-05T04:45:22Z"},{"alias_kind":"arxiv_version","alias_value":"2206.04644v1","created_at":"2026-07-05T04:45:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.04644","created_at":"2026-07-05T04:45:22Z"},{"alias_kind":"pith_short_12","alias_value":"5UR7LEM2T6II","created_at":"2026-07-05T04:45:22Z"},{"alias_kind":"pith_short_16","alias_value":"5UR7LEM2T6IIJRPH","created_at":"2026-07-05T04:45:22Z"},{"alias_kind":"pith_short_8","alias_value":"5UR7LEM2","created_at":"2026-07-05T04:45:22Z"}],"graph_snapshots":[{"event_id":"sha256:96ae04d85d10707d804f1c8227991f260ee49b62171325209d163cd44ddda600","target":"graph","created_at":"2026-07-05T04:45:22Z","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/2206.04644/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We analyzed spectropolarimetric data from the Swedish 1-meter Solar Telescope to investigate physical properties of small-scale magnetic cancellations in the quiet Sun photosphere. Specifically, we looked at the full Stokes polarization profiles along the Fe I 557.6 nm and of the Fe I 630.1 nm lines measured by CRisp Imaging SpectroPolarimeter (CRISP) to study temporal evolution of the line-of-sight (LOS) magnetic field during 42.5 minutes of quiet Sun evolution. From this magnetogram sequence, we visually identified 38 cancellation events. We then used Yet Another Feature Tracking Algorithm (","authors_text":"Dennis Tilipman, Francesca Zuccarello, Ilaria Ermolli, Luc Rouppe van der Voort, Mariachiara Falco, Maria D. Kazachenko, Salvatore Guglielmino, Serena Criscuoli, Shahin Jafarzadeh, Vincent E. Ledvina","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-06-09T17:39:51Z","title":"Quantifying Properties of Photospheric Magnetic Cancellations in the Quiet Sun Internetwork"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.04644","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":"sha256:5d9237df88db3275dbf5b7877cc898f6cc7f0d7956ba3654253cf5ce03e75487","target":"record","created_at":"2026-07-05T04:45:22Z","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":"f605b60435e1e2f3ab6b7b33d027a2615e09bf1e62a5b5d60259fe0a3d9ad7eb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-06-09T17:39:51Z","title_canon_sha256":"b11a030056096f6c038b224e6697598b734f11bec704d8eda690bfc59b73618d"},"schema_version":"1.0","source":{"id":"2206.04644","kind":"arxiv","version":1}},"canonical_sha256":"ed23f5919a9f9084c5e7ffff2e6b498e813a917c541b7e3412b678a3341aa8df","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ed23f5919a9f9084c5e7ffff2e6b498e813a917c541b7e3412b678a3341aa8df","first_computed_at":"2026-07-05T04:45:22.775797Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:45:22.775797Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0s68CwYuiS34bYrzv7DTr0DqbY2a15QDaP/ctCXtOxec2tduvuu+SrIlRp1C/PQxk4/n9f4+EO6h0qcDg0gUBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:45:22.776199Z","signed_message":"canonical_sha256_bytes"},"source_id":"2206.04644","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5d9237df88db3275dbf5b7877cc898f6cc7f0d7956ba3654253cf5ce03e75487","sha256:96ae04d85d10707d804f1c8227991f260ee49b62171325209d163cd44ddda600"],"state_sha256":"8b123a1035cb7127c553bed20868c1f797ccb9fda770cca7b085c8b5e1352abe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pcwb+6RHUXS3o8G6aox/kd+MmdgOlxZHnlMmFu++nM7LIlVS+xGitFa+gaTHCtHdMJUGDKvNvarSXyFVMFbLBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-09T06:00:40.158679Z","bundle_sha256":"7662e0228a28452b9566fbc72ab4c0f5927d260e5d8ac195fce104df43733412"}}