{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:Z3DWAMBGQXJ5LG6S3ZMZ7K4JAN","short_pith_number":"pith:Z3DWAMBG","canonical_record":{"source":{"id":"1211.4216","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-11-18T12:38:42Z","cross_cats_sorted":[],"title_canon_sha256":"c33bd73a08d288849bd5f589f7038f190579c51e40e16397b51a72dd463089bd","abstract_canon_sha256":"d3ed603f5feba9e086865708894aa2782d6736f9fd3ed508b63a08d9c8a45b29"},"schema_version":"1.0"},"canonical_sha256":"cec760302685d3d59bd2de599fab89036d0ec483f0073ad4b2b1bcb4852c6a01","source":{"kind":"arxiv","id":"1211.4216","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.4216","created_at":"2026-05-18T03:40:27Z"},{"alias_kind":"arxiv_version","alias_value":"1211.4216v1","created_at":"2026-05-18T03:40:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.4216","created_at":"2026-05-18T03:40:27Z"},{"alias_kind":"pith_short_12","alias_value":"Z3DWAMBGQXJ5","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"Z3DWAMBGQXJ5LG6S","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"Z3DWAMBG","created_at":"2026-05-18T12:27:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:Z3DWAMBGQXJ5LG6S3ZMZ7K4JAN","target":"record","payload":{"canonical_record":{"source":{"id":"1211.4216","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-11-18T12:38:42Z","cross_cats_sorted":[],"title_canon_sha256":"c33bd73a08d288849bd5f589f7038f190579c51e40e16397b51a72dd463089bd","abstract_canon_sha256":"d3ed603f5feba9e086865708894aa2782d6736f9fd3ed508b63a08d9c8a45b29"},"schema_version":"1.0"},"canonical_sha256":"cec760302685d3d59bd2de599fab89036d0ec483f0073ad4b2b1bcb4852c6a01","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:40:27.625940Z","signature_b64":"Rdx2kcS8Iu9ruZvYOiX/1L2i+vL0HMZ2ZT1pJs0d44iMqFco7FGZAEAaZYoQ8Zy/MASgGhmHmzwo2vcES/yvDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cec760302685d3d59bd2de599fab89036d0ec483f0073ad4b2b1bcb4852c6a01","last_reissued_at":"2026-05-18T03:40:27.625430Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:40:27.625430Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1211.4216","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":"2026-05-18T03:40:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JfQ9HVmnpES04ovAIcwoQOnA2EGjOQzNEBqyj/pMOXDseWsmzXxTm5pquVgjtRIH5Gqxz2/+WEmp0m8QNUZXAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:51:46.171055Z"},"content_sha256":"11541c374d890051733bcbe5df230b19a77271a374ffb47c6ab103eccfaf54e7","schema_version":"1.0","event_id":"sha256:11541c374d890051733bcbe5df230b19a77271a374ffb47c6ab103eccfaf54e7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:Z3DWAMBGQXJ5LG6S3ZMZ7K4JAN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multipolar Planetary Nebulae: Not as Geometrically Diversified as Thought","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Daniel Tafoya, Hiroshi Imai, James Chibueze, Sun Kwok, Sze-Ning Chong","submitted_at":"2012-11-18T12:38:42Z","abstract_excerpt":"Planetary nebulae (PNe) have diverse morphological shapes, including point-symmetric and multipolar structures. Many PNe also have complicated internal structures such as torus, lobes, knots, and ansae. A complete accounting of all the morphological structures through physical models is difficult. A first step toward such an understanding is to derive the true three-dimensional structure of the nebulae. In this paper, we show that a multipolar nebula with three pairs of lobes can explain many of such features, if orientation and sensitivity effects are taken into account. Using only six parame"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.4216","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":"2026-05-18T03:40:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rNGiURuzecg9ScbXbWmKu0MmkUI6V4eTOwkaHqoehM2/EG34fCnUYeOHzkrm4LphDbELnAYexU6JxlndwVEPCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:51:46.171419Z"},"content_sha256":"f701688f374f87d5d3e32fca8b2396e358918dff1757078d05bf7487b539ddb4","schema_version":"1.0","event_id":"sha256:f701688f374f87d5d3e32fca8b2396e358918dff1757078d05bf7487b539ddb4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z3DWAMBGQXJ5LG6S3ZMZ7K4JAN/bundle.json","state_url":"https://pith.science/pith/Z3DWAMBGQXJ5LG6S3ZMZ7K4JAN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z3DWAMBGQXJ5LG6S3ZMZ7K4JAN/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":"2026-05-28T08:51:46Z","links":{"resolver":"https://pith.science/pith/Z3DWAMBGQXJ5LG6S3ZMZ7K4JAN","bundle":"https://pith.science/pith/Z3DWAMBGQXJ5LG6S3ZMZ7K4JAN/bundle.json","state":"https://pith.science/pith/Z3DWAMBGQXJ5LG6S3ZMZ7K4JAN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z3DWAMBGQXJ5LG6S3ZMZ7K4JAN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:Z3DWAMBGQXJ5LG6S3ZMZ7K4JAN","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":"d3ed603f5feba9e086865708894aa2782d6736f9fd3ed508b63a08d9c8a45b29","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-11-18T12:38:42Z","title_canon_sha256":"c33bd73a08d288849bd5f589f7038f190579c51e40e16397b51a72dd463089bd"},"schema_version":"1.0","source":{"id":"1211.4216","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.4216","created_at":"2026-05-18T03:40:27Z"},{"alias_kind":"arxiv_version","alias_value":"1211.4216v1","created_at":"2026-05-18T03:40:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.4216","created_at":"2026-05-18T03:40:27Z"},{"alias_kind":"pith_short_12","alias_value":"Z3DWAMBGQXJ5","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"Z3DWAMBGQXJ5LG6S","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"Z3DWAMBG","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:f701688f374f87d5d3e32fca8b2396e358918dff1757078d05bf7487b539ddb4","target":"graph","created_at":"2026-05-18T03:40:27Z","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":"Planetary nebulae (PNe) have diverse morphological shapes, including point-symmetric and multipolar structures. Many PNe also have complicated internal structures such as torus, lobes, knots, and ansae. A complete accounting of all the morphological structures through physical models is difficult. A first step toward such an understanding is to derive the true three-dimensional structure of the nebulae. In this paper, we show that a multipolar nebula with three pairs of lobes can explain many of such features, if orientation and sensitivity effects are taken into account. Using only six parame","authors_text":"Daniel Tafoya, Hiroshi Imai, James Chibueze, Sun Kwok, Sze-Ning Chong","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-11-18T12:38:42Z","title":"Multipolar Planetary Nebulae: Not as Geometrically Diversified as Thought"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.4216","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":"sha256:11541c374d890051733bcbe5df230b19a77271a374ffb47c6ab103eccfaf54e7","target":"record","created_at":"2026-05-18T03:40:27Z","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":"d3ed603f5feba9e086865708894aa2782d6736f9fd3ed508b63a08d9c8a45b29","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-11-18T12:38:42Z","title_canon_sha256":"c33bd73a08d288849bd5f589f7038f190579c51e40e16397b51a72dd463089bd"},"schema_version":"1.0","source":{"id":"1211.4216","kind":"arxiv","version":1}},"canonical_sha256":"cec760302685d3d59bd2de599fab89036d0ec483f0073ad4b2b1bcb4852c6a01","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cec760302685d3d59bd2de599fab89036d0ec483f0073ad4b2b1bcb4852c6a01","first_computed_at":"2026-05-18T03:40:27.625430Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:40:27.625430Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Rdx2kcS8Iu9ruZvYOiX/1L2i+vL0HMZ2ZT1pJs0d44iMqFco7FGZAEAaZYoQ8Zy/MASgGhmHmzwo2vcES/yvDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:40:27.625940Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.4216","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:11541c374d890051733bcbe5df230b19a77271a374ffb47c6ab103eccfaf54e7","sha256:f701688f374f87d5d3e32fca8b2396e358918dff1757078d05bf7487b539ddb4"],"state_sha256":"013f2e0268958ceeb64de19446655a75603d02b78b928c092af3352cf2e14b82"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HMIZwy1z9Ns5lsH3nNJcMPWUXQfL33TwANJipFKEzJ1YDRsAlyDYzNKiTozLiLsgP2xEZcmTTRRyd06IqyQiCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T08:51:46.173366Z","bundle_sha256":"72d4b4e0359848347006e18e4bad5967219989a81949777c617271962d634c6a"}}