{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:N3P5D2HTCFLMH5R7E7IBRUJ2FS","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":"55b361a20bfcee2d2c40d97d06910e6ec11ca67c3bd50768ba6c6e9483186324","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-07-19T10:27:46Z","title_canon_sha256":"ed3a349e90303ed46ce1b6d4fa9c9178a89deffdb7eb6eaac5490ccf042d03a1"},"schema_version":"1.0","source":{"id":"1207.4606","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.4606","created_at":"2026-05-18T01:56:16Z"},{"alias_kind":"arxiv_version","alias_value":"1207.4606v3","created_at":"2026-05-18T01:56:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.4606","created_at":"2026-05-18T01:56:16Z"},{"alias_kind":"pith_short_12","alias_value":"N3P5D2HTCFLM","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"N3P5D2HTCFLMH5R7","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"N3P5D2HT","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:ff571131a40004d3f247727c74e5c83a3e025cf136f76400d83b66380dcccc91","target":"graph","created_at":"2026-05-18T01:56:16Z","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":"We report the discovery of an extended halo (40' in diameter) around the planetary nebula NGC7293 (the Helix Nebula) observed in 12micron band from the Wide-field Infrared Survey Explorer all-sky survey. The mid-infrared halo has an axisymmetric structure with a sharp boundary to the northeast and a more diffuse boundary to the southwest, suggesting an interaction between the stellar wind and the interstellar medium (ISM). The symmetry axis of the halo is well aligned with that of a northeast arc, suggesting that the two structures are physically associated. We have attempted to fit the observ","authors_text":"Chih-Hao Hsia, Sun Kwok, Yong Zhang","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-07-19T10:27:46Z","title":"Discovery of a halo around the Helix Nebula NGC 7293 in the WISE all-sky survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.4606","kind":"arxiv","version":3},"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":"sha256:3bf5594116a3a2d768c73be020aa4b48fc50b1bf4ce8e4822cd53274510bb044","target":"record","created_at":"2026-05-18T01:56:16Z","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":"55b361a20bfcee2d2c40d97d06910e6ec11ca67c3bd50768ba6c6e9483186324","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-07-19T10:27:46Z","title_canon_sha256":"ed3a349e90303ed46ce1b6d4fa9c9178a89deffdb7eb6eaac5490ccf042d03a1"},"schema_version":"1.0","source":{"id":"1207.4606","kind":"arxiv","version":3}},"canonical_sha256":"6edfd1e8f31156c3f63f27d018d13a2c90f0b22500afdcb1bcb164669be4168c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6edfd1e8f31156c3f63f27d018d13a2c90f0b22500afdcb1bcb164669be4168c","first_computed_at":"2026-05-18T01:56:16.338295Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:56:16.338295Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ltRL1aTEBPWaM2l9OgvGQcXCAmgKm7IT38D/mCem0kpu3YbnbV8YpK90uz7XLZM0GTHtr575jBin+ThiczDNBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:56:16.338773Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.4606","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3bf5594116a3a2d768c73be020aa4b48fc50b1bf4ce8e4822cd53274510bb044","sha256:ff571131a40004d3f247727c74e5c83a3e025cf136f76400d83b66380dcccc91"],"state_sha256":"d4728d571d8598f0add6a9b59e75aab2a212ddff41928f2c6db7e643edc4109b"}