{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:MMB4A2NIL3QMZVQJ4EJQC53RHK","short_pith_number":"pith:MMB4A2NI","canonical_record":{"source":{"id":"1808.02272","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-07T09:15:21Z","cross_cats_sorted":[],"title_canon_sha256":"fe82690316905fdb1cdc425463fb6238cec63023ec30dfe9bc7a080a5675d95b","abstract_canon_sha256":"efaa0e1d8c4c29d64095b53f8d63451822e3122761653f1bca30c52a75c0c499"},"schema_version":"1.0"},"canonical_sha256":"6303c069a85ee0ccd609e1130177713aa518fe199c9ef88eb0077a7d32b7e939","source":{"kind":"arxiv","id":"1808.02272","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.02272","created_at":"2026-05-18T00:02:31Z"},{"alias_kind":"arxiv_version","alias_value":"1808.02272v1","created_at":"2026-05-18T00:02:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.02272","created_at":"2026-05-18T00:02:31Z"},{"alias_kind":"pith_short_12","alias_value":"MMB4A2NIL3QM","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"MMB4A2NIL3QMZVQJ","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"MMB4A2NI","created_at":"2026-05-18T12:32:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:MMB4A2NIL3QMZVQJ4EJQC53RHK","target":"record","payload":{"canonical_record":{"source":{"id":"1808.02272","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-07T09:15:21Z","cross_cats_sorted":[],"title_canon_sha256":"fe82690316905fdb1cdc425463fb6238cec63023ec30dfe9bc7a080a5675d95b","abstract_canon_sha256":"efaa0e1d8c4c29d64095b53f8d63451822e3122761653f1bca30c52a75c0c499"},"schema_version":"1.0"},"canonical_sha256":"6303c069a85ee0ccd609e1130177713aa518fe199c9ef88eb0077a7d32b7e939","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:02:31.361678Z","signature_b64":"9YkQpm+FSalrmG64rLlTqJqPqlrgqncpexMxjDKlOxJIAvAjGApckEvmLBQyI3wsdOZR1cbzRTjou784YNarBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6303c069a85ee0ccd609e1130177713aa518fe199c9ef88eb0077a7d32b7e939","last_reissued_at":"2026-05-18T00:02:31.361090Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:02:31.361090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.02272","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":"2026-05-18T00:02:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/BRuiWmWIiJKzkS7l1kjIYh5x9u6H046aRvCu9TY04p4Asc6/rspgmX5qaikWqckKJu7gN2xirhPGpS49MfRDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:53:27.104404Z"},"content_sha256":"717b9a4d02f83757bf9d37c7b941b35477d91ab48d05b8d32c1e3a3562fce086","schema_version":"1.0","event_id":"sha256:717b9a4d02f83757bf9d37c7b941b35477d91ab48d05b8d32c1e3a3562fce086"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:MMB4A2NIL3QMZVQJ4EJQC53RHK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Horizontal photospheric flows trigger a filament eruption","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"B. Filippov, B. Schmieder, J.M. Malherbe, R. Chandra, T. Roudier","submitted_at":"2018-08-07T09:15:21Z","abstract_excerpt":"A large filament composed principally of two sections erupted sequentially in the southern hemisphere on January 26 2016. The central, thick part of the northern section was first lifted up and lead to the eruption of the full filament. This event was observed in H-alpha with GONG and CLIMSO, and in ultraviolet (UV) with the AIA/SDO imager. The aim of the paper is to relate the photospheric motions below the filament and its environment to the eruption of the filament. An analysis of the photospheric motions using SDO/HMI continuum images with the coherent structure tracking (CST) algorithm de"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.02272","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":""},"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":"2026-05-18T00:02:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OX3HAjivvhIpIM9mFagJNP05wLXm4U+yq3Qhmk9+LN8ZHyFz85CvEGeC24cF8QrrtG2rGwZfQixE3AZ3giUlBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:53:27.105023Z"},"content_sha256":"ebcef412fe51cf2c79aa211c00212f22c61ceb096b0f69bb92a93069cff1667a","schema_version":"1.0","event_id":"sha256:ebcef412fe51cf2c79aa211c00212f22c61ceb096b0f69bb92a93069cff1667a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MMB4A2NIL3QMZVQJ4EJQC53RHK/bundle.json","state_url":"https://pith.science/pith/MMB4A2NIL3QMZVQJ4EJQC53RHK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MMB4A2NIL3QMZVQJ4EJQC53RHK/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":"2026-05-25T21:53:27Z","links":{"resolver":"https://pith.science/pith/MMB4A2NIL3QMZVQJ4EJQC53RHK","bundle":"https://pith.science/pith/MMB4A2NIL3QMZVQJ4EJQC53RHK/bundle.json","state":"https://pith.science/pith/MMB4A2NIL3QMZVQJ4EJQC53RHK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MMB4A2NIL3QMZVQJ4EJQC53RHK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:MMB4A2NIL3QMZVQJ4EJQC53RHK","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":"efaa0e1d8c4c29d64095b53f8d63451822e3122761653f1bca30c52a75c0c499","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-07T09:15:21Z","title_canon_sha256":"fe82690316905fdb1cdc425463fb6238cec63023ec30dfe9bc7a080a5675d95b"},"schema_version":"1.0","source":{"id":"1808.02272","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.02272","created_at":"2026-05-18T00:02:31Z"},{"alias_kind":"arxiv_version","alias_value":"1808.02272v1","created_at":"2026-05-18T00:02:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.02272","created_at":"2026-05-18T00:02:31Z"},{"alias_kind":"pith_short_12","alias_value":"MMB4A2NIL3QM","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"MMB4A2NIL3QMZVQJ","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"MMB4A2NI","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:ebcef412fe51cf2c79aa211c00212f22c61ceb096b0f69bb92a93069cff1667a","target":"graph","created_at":"2026-05-18T00:02:31Z","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"},"paper":{"abstract_excerpt":"A large filament composed principally of two sections erupted sequentially in the southern hemisphere on January 26 2016. The central, thick part of the northern section was first lifted up and lead to the eruption of the full filament. This event was observed in H-alpha with GONG and CLIMSO, and in ultraviolet (UV) with the AIA/SDO imager. The aim of the paper is to relate the photospheric motions below the filament and its environment to the eruption of the filament. An analysis of the photospheric motions using SDO/HMI continuum images with the coherent structure tracking (CST) algorithm de","authors_text":"B. Filippov, B. Schmieder, J.M. Malherbe, R. Chandra, T. Roudier","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-07T09:15:21Z","title":"Horizontal photospheric flows trigger a filament eruption"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.02272","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":"sha256:717b9a4d02f83757bf9d37c7b941b35477d91ab48d05b8d32c1e3a3562fce086","target":"record","created_at":"2026-05-18T00:02:31Z","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":"efaa0e1d8c4c29d64095b53f8d63451822e3122761653f1bca30c52a75c0c499","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-07T09:15:21Z","title_canon_sha256":"fe82690316905fdb1cdc425463fb6238cec63023ec30dfe9bc7a080a5675d95b"},"schema_version":"1.0","source":{"id":"1808.02272","kind":"arxiv","version":1}},"canonical_sha256":"6303c069a85ee0ccd609e1130177713aa518fe199c9ef88eb0077a7d32b7e939","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6303c069a85ee0ccd609e1130177713aa518fe199c9ef88eb0077a7d32b7e939","first_computed_at":"2026-05-18T00:02:31.361090Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:02:31.361090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9YkQpm+FSalrmG64rLlTqJqPqlrgqncpexMxjDKlOxJIAvAjGApckEvmLBQyI3wsdOZR1cbzRTjou784YNarBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:02:31.361678Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.02272","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:717b9a4d02f83757bf9d37c7b941b35477d91ab48d05b8d32c1e3a3562fce086","sha256:ebcef412fe51cf2c79aa211c00212f22c61ceb096b0f69bb92a93069cff1667a"],"state_sha256":"9c2343803cc517509d924dd1ed1b629e906223c862ad3dec86e90ec439bf6aa8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"owqASBjMj5KR/XJoJDjscKHR4nujW+gfpUbmpkg9YsqcFyQ2GTCjb+s+71huCbW08vxzqe+F8bm4Gy1fPf1VAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T21:53:27.108537Z","bundle_sha256":"63206a86e20b9cc8d6e9a7ef0e359ebf42fd4d365ca2b03b4c0e6d8eade26363"}}