{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:2ZIFB2ICRAC7MNZDSP7BYQZJ7K","short_pith_number":"pith:2ZIFB2IC","canonical_record":{"source":{"id":"1101.5246","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-01-27T10:20:03Z","cross_cats_sorted":[],"title_canon_sha256":"63206d71c515474b9d74b1cae48ff2eda230b2c289429e08155a207157e5eae4","abstract_canon_sha256":"94ffc75a2e78b0a1809ca71ce377a9c33063e67ef22b745c3a115b68ec79d7e2"},"schema_version":"1.0"},"canonical_sha256":"d65050e9028805f6372393fe1c4329fab17683617c8a667836212a18dbd19de0","source":{"kind":"arxiv","id":"1101.5246","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.5246","created_at":"2026-05-18T02:03:21Z"},{"alias_kind":"arxiv_version","alias_value":"1101.5246v1","created_at":"2026-05-18T02:03:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.5246","created_at":"2026-05-18T02:03:21Z"},{"alias_kind":"pith_short_12","alias_value":"2ZIFB2ICRAC7","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"2ZIFB2ICRAC7MNZD","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"2ZIFB2IC","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:2ZIFB2ICRAC7MNZDSP7BYQZJ7K","target":"record","payload":{"canonical_record":{"source":{"id":"1101.5246","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-01-27T10:20:03Z","cross_cats_sorted":[],"title_canon_sha256":"63206d71c515474b9d74b1cae48ff2eda230b2c289429e08155a207157e5eae4","abstract_canon_sha256":"94ffc75a2e78b0a1809ca71ce377a9c33063e67ef22b745c3a115b68ec79d7e2"},"schema_version":"1.0"},"canonical_sha256":"d65050e9028805f6372393fe1c4329fab17683617c8a667836212a18dbd19de0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:21.461520Z","signature_b64":"qe6vmlIO3hs/kZLDIXXpEZCh9r3t8SKclgiTONt+id64qE/R8dFncxBfRl6a/wmrS2i/Hz9IFh3KFlizpfgRCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d65050e9028805f6372393fe1c4329fab17683617c8a667836212a18dbd19de0","last_reissued_at":"2026-05-18T02:03:21.460739Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:21.460739Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1101.5246","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":"2026-05-18T02:03:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B3l5Z4Qtcdl8rO1IfnugNZpUyyIWrzbYtGGcjW/zwJH3fMvsamNM/iFrDdHDJPVmZX8mkIRCT3+S+Kz2C1fADQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T09:39:06.683363Z"},"content_sha256":"467c67770d3be0444062b4566a174ab9bd06b6810cab59a470fdc533e9fd6862","schema_version":"1.0","event_id":"sha256:467c67770d3be0444062b4566a174ab9bd06b6810cab59a470fdc533e9fd6862"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:2ZIFB2ICRAC7MNZDSP7BYQZJ7K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Crossing Filaments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A.K. Srivastava, Boris Filippov","submitted_at":"2011-01-27T10:20:03Z","abstract_excerpt":"Solar filaments show the position of large scale polarity inversion lines and are used for the reconstruction of large-scale solar magnetic field structure on the basis of H{\\alpha} synoptic charts for the periods when magnetographic measurements were not available. Sometimes crossing filaments are seen in H{\\alpha} filtergrams. We analyze daily H{\\alpha} filtergrams from the archive of Big Bear Solar Observatory for the period of 1999-2003 to find crossing and interacting filaments. A number of examples are presented and filament patterns are compared with photospheric magnetic field distribu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.5246","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":"2026-05-18T02:03:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fb2Nfi6jEJmIRwaF9mU24A1k8kyYJld59F0jmK7oDYluLYASYfV9olgQDyX8DrJZo1VPGoUjxNWRZkZROLX1DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T09:39:06.683715Z"},"content_sha256":"7724792327ff2bac29116d911ef1ecf2d6fe8ec93c51c7a9fe8241ae45e3e9c8","schema_version":"1.0","event_id":"sha256:7724792327ff2bac29116d911ef1ecf2d6fe8ec93c51c7a9fe8241ae45e3e9c8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2ZIFB2ICRAC7MNZDSP7BYQZJ7K/bundle.json","state_url":"https://pith.science/pith/2ZIFB2ICRAC7MNZDSP7BYQZJ7K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2ZIFB2ICRAC7MNZDSP7BYQZJ7K/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":"2026-06-26T09:39:06Z","links":{"resolver":"https://pith.science/pith/2ZIFB2ICRAC7MNZDSP7BYQZJ7K","bundle":"https://pith.science/pith/2ZIFB2ICRAC7MNZDSP7BYQZJ7K/bundle.json","state":"https://pith.science/pith/2ZIFB2ICRAC7MNZDSP7BYQZJ7K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2ZIFB2ICRAC7MNZDSP7BYQZJ7K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:2ZIFB2ICRAC7MNZDSP7BYQZJ7K","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":"94ffc75a2e78b0a1809ca71ce377a9c33063e67ef22b745c3a115b68ec79d7e2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-01-27T10:20:03Z","title_canon_sha256":"63206d71c515474b9d74b1cae48ff2eda230b2c289429e08155a207157e5eae4"},"schema_version":"1.0","source":{"id":"1101.5246","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.5246","created_at":"2026-05-18T02:03:21Z"},{"alias_kind":"arxiv_version","alias_value":"1101.5246v1","created_at":"2026-05-18T02:03:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.5246","created_at":"2026-05-18T02:03:21Z"},{"alias_kind":"pith_short_12","alias_value":"2ZIFB2ICRAC7","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"2ZIFB2ICRAC7MNZD","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"2ZIFB2IC","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:7724792327ff2bac29116d911ef1ecf2d6fe8ec93c51c7a9fe8241ae45e3e9c8","target":"graph","created_at":"2026-05-18T02:03:21Z","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":"Solar filaments show the position of large scale polarity inversion lines and are used for the reconstruction of large-scale solar magnetic field structure on the basis of H{\\alpha} synoptic charts for the periods when magnetographic measurements were not available. Sometimes crossing filaments are seen in H{\\alpha} filtergrams. We analyze daily H{\\alpha} filtergrams from the archive of Big Bear Solar Observatory for the period of 1999-2003 to find crossing and interacting filaments. A number of examples are presented and filament patterns are compared with photospheric magnetic field distribu","authors_text":"A.K. Srivastava, Boris Filippov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-01-27T10:20:03Z","title":"Crossing Filaments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.5246","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":"sha256:467c67770d3be0444062b4566a174ab9bd06b6810cab59a470fdc533e9fd6862","target":"record","created_at":"2026-05-18T02:03:21Z","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":"94ffc75a2e78b0a1809ca71ce377a9c33063e67ef22b745c3a115b68ec79d7e2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-01-27T10:20:03Z","title_canon_sha256":"63206d71c515474b9d74b1cae48ff2eda230b2c289429e08155a207157e5eae4"},"schema_version":"1.0","source":{"id":"1101.5246","kind":"arxiv","version":1}},"canonical_sha256":"d65050e9028805f6372393fe1c4329fab17683617c8a667836212a18dbd19de0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d65050e9028805f6372393fe1c4329fab17683617c8a667836212a18dbd19de0","first_computed_at":"2026-05-18T02:03:21.460739Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:21.460739Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qe6vmlIO3hs/kZLDIXXpEZCh9r3t8SKclgiTONt+id64qE/R8dFncxBfRl6a/wmrS2i/Hz9IFh3KFlizpfgRCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:21.461520Z","signed_message":"canonical_sha256_bytes"},"source_id":"1101.5246","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:467c67770d3be0444062b4566a174ab9bd06b6810cab59a470fdc533e9fd6862","sha256:7724792327ff2bac29116d911ef1ecf2d6fe8ec93c51c7a9fe8241ae45e3e9c8"],"state_sha256":"bc08a38ec26a655c71a99a9fc1bec75ce19e363966b3f8003de5785400cd69a4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cjXY2nbwajJ5W5ggt/fzuvwkBlL0cZphrqaJ8VdhtbN7FrYqmwQjWhbdsgxtPbYtAOlh1lV+paaPdzyLp0/uAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T09:39:06.685593Z","bundle_sha256":"fab9f9ddcadbde479a0cfb46c3ddf986abdcab254f011bbcdb2e1717956d66ac"}}