{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:DMNJ6YQTYS3Y5FBWVWONGJMCFB","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":"61897197c04bacbaf2ebdabbc643019ed0ec84477b4e7661370c96456e106db5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-12T11:57:18Z","title_canon_sha256":"78aff5930c5ac42e11d742f239b38f352ed1b9d4fe72628458c9506c1fc4af9c"},"schema_version":"1.0","source":{"id":"1210.3483","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.3483","created_at":"2026-05-18T03:43:19Z"},{"alias_kind":"arxiv_version","alias_value":"1210.3483v1","created_at":"2026-05-18T03:43:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.3483","created_at":"2026-05-18T03:43:19Z"},{"alias_kind":"pith_short_12","alias_value":"DMNJ6YQTYS3Y","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"DMNJ6YQTYS3Y5FBW","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"DMNJ6YQT","created_at":"2026-05-18T12:27:04Z"}],"graph_snapshots":[{"event_id":"sha256:fafefe5ce3b58c2fc43c3b915e4810961309e8540a5551c911ef60fa94748800","target":"graph","created_at":"2026-05-18T03:43:19Z","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 present new Herschel/PACS images at 70, 100, and 160 micron of the well-known, nearby, carbon-rich asymptotic giant branch star IRC+10216 revealing multiple dust shells in its circumstellar envelope. For the first time, dust shells (or arcs) are detected until 320 arcsec. The almost spherical shells are non-concentric and have an angular extent between 40 deg and 200 deg. The shells have a typical width of 5 arcsec - 8 arcsec, and the shell separation varies in the range of 10 arcsec - 35 arcsec, corresponding to 500-1700 yr. Local density variations within one arc are visible. The shell/in","authors_text":"B. Vandenbussche, C. Waelkens, F. Kerschbaum, J. A. D. L. Blommaert, L. Decin, M. A. T. Groenewegen, M. J. Barlow, N. L. J. Cox, P. Royer, R. Ottensamer, T. Lim, T. Posch","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-12T11:57:18Z","title":"Discovery of multiple dust shells beyond 1 arcmin in the circumstellar envelope of IRC+10216 using Herschel/PACS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.3483","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":"sha256:1fd5ce005d1704f000548a66c703c55ff950db9cd3d8716521327933c1d94b7b","target":"record","created_at":"2026-05-18T03:43:19Z","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":"61897197c04bacbaf2ebdabbc643019ed0ec84477b4e7661370c96456e106db5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-12T11:57:18Z","title_canon_sha256":"78aff5930c5ac42e11d742f239b38f352ed1b9d4fe72628458c9506c1fc4af9c"},"schema_version":"1.0","source":{"id":"1210.3483","kind":"arxiv","version":1}},"canonical_sha256":"1b1a9f6213c4b78e9436ad9cd32582286319022676aa1ae1407d9d10358ff7e5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1b1a9f6213c4b78e9436ad9cd32582286319022676aa1ae1407d9d10358ff7e5","first_computed_at":"2026-05-18T03:43:19.708959Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:43:19.708959Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LonrRA8XuoipXDLxfI95Hh+9BvWkRXKqQjh6Zr08Vyl9W+6oUs7lp2IlrcWMmvKNQa81Fdub9zRg5AqdWerpAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:43:19.709565Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.3483","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1fd5ce005d1704f000548a66c703c55ff950db9cd3d8716521327933c1d94b7b","sha256:fafefe5ce3b58c2fc43c3b915e4810961309e8540a5551c911ef60fa94748800"],"state_sha256":"f3502002781add8e928dfe8bac0bf506a5228c8242fd098c962112173e188115"}