{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:P4AMEUJYXYUDSON6U5SVLXUTPX","short_pith_number":"pith:P4AMEUJY","canonical_record":{"source":{"id":"2209.00306","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-09-01T09:14:37Z","cross_cats_sorted":[],"title_canon_sha256":"c8c1f98d0bb197fb7fe73cbd755e0f3ad9d8ce22f1cffec03e8ac6ccfbc7b693","abstract_canon_sha256":"1b519ba9d076c5389b6e370b4f6faf4ef51041fd80895554dd05c82adc9b039e"},"schema_version":"1.0"},"canonical_sha256":"7f00c25138be283939bea76555de937de2e304433cb2afe36361435198cab48f","source":{"kind":"arxiv","id":"2209.00306","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.00306","created_at":"2026-07-05T05:01:30Z"},{"alias_kind":"arxiv_version","alias_value":"2209.00306v1","created_at":"2026-07-05T05:01:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.00306","created_at":"2026-07-05T05:01:30Z"},{"alias_kind":"pith_short_12","alias_value":"P4AMEUJYXYUD","created_at":"2026-07-05T05:01:30Z"},{"alias_kind":"pith_short_16","alias_value":"P4AMEUJYXYUDSON6","created_at":"2026-07-05T05:01:30Z"},{"alias_kind":"pith_short_8","alias_value":"P4AMEUJY","created_at":"2026-07-05T05:01:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:P4AMEUJYXYUDSON6U5SVLXUTPX","target":"record","payload":{"canonical_record":{"source":{"id":"2209.00306","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-09-01T09:14:37Z","cross_cats_sorted":[],"title_canon_sha256":"c8c1f98d0bb197fb7fe73cbd755e0f3ad9d8ce22f1cffec03e8ac6ccfbc7b693","abstract_canon_sha256":"1b519ba9d076c5389b6e370b4f6faf4ef51041fd80895554dd05c82adc9b039e"},"schema_version":"1.0"},"canonical_sha256":"7f00c25138be283939bea76555de937de2e304433cb2afe36361435198cab48f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:01:30.385241Z","signature_b64":"b8SzDk0zOsdVkJZJaaJFOvlahE8ywtD63qaSdsHUQyFm6okwVfHzZbN88F/NIxKAXeOhp82BP+2LjCYHmFqaBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f00c25138be283939bea76555de937de2e304433cb2afe36361435198cab48f","last_reissued_at":"2026-07-05T05:01:30.384666Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:01:30.384666Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2209.00306","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":"2026-07-05T05:01:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jZopRHRWG9hcUZuheFXOa5QmRwce/+G6WW2k3QIJbt6N9jqQECno8o9iBQnSR1duVLwbMCgu1kM+1x5J4B1KDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T11:04:50.888616Z"},"content_sha256":"4d329bd43d456e4f2a7120139a064ee1bde9c27f54997d7cb1bda367c55c6927","schema_version":"1.0","event_id":"sha256:4d329bd43d456e4f2a7120139a064ee1bde9c27f54997d7cb1bda367c55c6927"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:P4AMEUJYXYUDSON6U5SVLXUTPX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Filament Leg--Leg Reconnection as a Source of Prominent Supra-Arcade Downflows","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Alena Zemanova, Guillaume Aulanier, Jana Kasparova, Jaroslav Dudik, Juraj Lorincik, Marian Karlicky, Miloslav Druckmuller","submitted_at":"2022-09-01T09:14:37Z","abstract_excerpt":"We report on interaction of the legs of the erupting filament of 2012 August 31 and associated prominent supra-arcade downflows (P-SADs) as observed by the Atmospheric Imaging Assembly onboard the Solar Dynamics Observatory. We employ a number of image processing techniques to enhance weak interacting features. As the filament erupts, both legs stretch outwards. The positive-polarity leg also untwists and splits into two parts. The first part runs into the conjugate (negative-polarity) leg, tearing it apart. The second part then converges into the remnant of the conjugate leg, after which both"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.00306","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/2209.00306/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":"2026-07-05T05:01:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SFiy/trrxMZ4NXuah6Bf4V4rOQOuPQOZrbBI2kNwUlv2SZruCtranaeW/MkqMPIptCfHy1q2qXwNTLC7knsoCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T11:04:50.889406Z"},"content_sha256":"f40029f544f4c9e3a3407196162e54c13016bb242d7617688560863f0dd48a88","schema_version":"1.0","event_id":"sha256:f40029f544f4c9e3a3407196162e54c13016bb242d7617688560863f0dd48a88"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P4AMEUJYXYUDSON6U5SVLXUTPX/bundle.json","state_url":"https://pith.science/pith/P4AMEUJYXYUDSON6U5SVLXUTPX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P4AMEUJYXYUDSON6U5SVLXUTPX/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":"2026-08-11T11:04:50Z","links":{"resolver":"https://pith.science/pith/P4AMEUJYXYUDSON6U5SVLXUTPX","bundle":"https://pith.science/pith/P4AMEUJYXYUDSON6U5SVLXUTPX/bundle.json","state":"https://pith.science/pith/P4AMEUJYXYUDSON6U5SVLXUTPX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P4AMEUJYXYUDSON6U5SVLXUTPX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:P4AMEUJYXYUDSON6U5SVLXUTPX","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":"1b519ba9d076c5389b6e370b4f6faf4ef51041fd80895554dd05c82adc9b039e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-09-01T09:14:37Z","title_canon_sha256":"c8c1f98d0bb197fb7fe73cbd755e0f3ad9d8ce22f1cffec03e8ac6ccfbc7b693"},"schema_version":"1.0","source":{"id":"2209.00306","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.00306","created_at":"2026-07-05T05:01:30Z"},{"alias_kind":"arxiv_version","alias_value":"2209.00306v1","created_at":"2026-07-05T05:01:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.00306","created_at":"2026-07-05T05:01:30Z"},{"alias_kind":"pith_short_12","alias_value":"P4AMEUJYXYUD","created_at":"2026-07-05T05:01:30Z"},{"alias_kind":"pith_short_16","alias_value":"P4AMEUJYXYUDSON6","created_at":"2026-07-05T05:01:30Z"},{"alias_kind":"pith_short_8","alias_value":"P4AMEUJY","created_at":"2026-07-05T05:01:30Z"}],"graph_snapshots":[{"event_id":"sha256:f40029f544f4c9e3a3407196162e54c13016bb242d7617688560863f0dd48a88","target":"graph","created_at":"2026-07-05T05:01:30Z","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/2209.00306/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report on interaction of the legs of the erupting filament of 2012 August 31 and associated prominent supra-arcade downflows (P-SADs) as observed by the Atmospheric Imaging Assembly onboard the Solar Dynamics Observatory. We employ a number of image processing techniques to enhance weak interacting features. As the filament erupts, both legs stretch outwards. The positive-polarity leg also untwists and splits into two parts. The first part runs into the conjugate (negative-polarity) leg, tearing it apart. The second part then converges into the remnant of the conjugate leg, after which both","authors_text":"Alena Zemanova, Guillaume Aulanier, Jana Kasparova, Jaroslav Dudik, Juraj Lorincik, Marian Karlicky, Miloslav Druckmuller","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-09-01T09:14:37Z","title":"Filament Leg--Leg Reconnection as a Source of Prominent Supra-Arcade Downflows"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.00306","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":"sha256:4d329bd43d456e4f2a7120139a064ee1bde9c27f54997d7cb1bda367c55c6927","target":"record","created_at":"2026-07-05T05:01:30Z","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":"1b519ba9d076c5389b6e370b4f6faf4ef51041fd80895554dd05c82adc9b039e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-09-01T09:14:37Z","title_canon_sha256":"c8c1f98d0bb197fb7fe73cbd755e0f3ad9d8ce22f1cffec03e8ac6ccfbc7b693"},"schema_version":"1.0","source":{"id":"2209.00306","kind":"arxiv","version":1}},"canonical_sha256":"7f00c25138be283939bea76555de937de2e304433cb2afe36361435198cab48f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f00c25138be283939bea76555de937de2e304433cb2afe36361435198cab48f","first_computed_at":"2026-07-05T05:01:30.384666Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:01:30.384666Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b8SzDk0zOsdVkJZJaaJFOvlahE8ywtD63qaSdsHUQyFm6okwVfHzZbN88F/NIxKAXeOhp82BP+2LjCYHmFqaBw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:01:30.385241Z","signed_message":"canonical_sha256_bytes"},"source_id":"2209.00306","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4d329bd43d456e4f2a7120139a064ee1bde9c27f54997d7cb1bda367c55c6927","sha256:f40029f544f4c9e3a3407196162e54c13016bb242d7617688560863f0dd48a88"],"state_sha256":"5d3b76e0abd14b7abab32b308cb6d802a9d62b734ecce36bcf769247e1c14221"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Khqm3ZRJRvZiRBLE7N2ojzttWWQrToDlkviBG28Zyy3xBs2D0RWQRg+O+HDnxOCnQoTkkU3Hlv7dJ7iZLTWcDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T11:04:50.894171Z","bundle_sha256":"b442e40f4335cccf5c2ea75382a017def1b74562c6853bdccd45acf65afec838"}}