{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:MNMVP6R3COX5P2CW4FFSYLVDJO","short_pith_number":"pith:MNMVP6R3","canonical_record":{"source":{"id":"1009.2066","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-10T17:53:31Z","cross_cats_sorted":[],"title_canon_sha256":"c7f3b6780fd473b42451d43d8336355bc4c23f075c924522ebc11099a0790eaa","abstract_canon_sha256":"a1ea02dddfa18ff1581992dc5a23a4ca5cf72a3c5040d06e4f6d26396a064944"},"schema_version":"1.0"},"canonical_sha256":"635957fa3b13afd7e856e14b2c2ea34b956de0de30e2e5ae2dd63546c5885429","source":{"kind":"arxiv","id":"1009.2066","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.2066","created_at":"2026-05-18T02:05:31Z"},{"alias_kind":"arxiv_version","alias_value":"1009.2066v1","created_at":"2026-05-18T02:05:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.2066","created_at":"2026-05-18T02:05:31Z"},{"alias_kind":"pith_short_12","alias_value":"MNMVP6R3COX5","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"MNMVP6R3COX5P2CW","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"MNMVP6R3","created_at":"2026-05-18T12:26:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:MNMVP6R3COX5P2CW4FFSYLVDJO","target":"record","payload":{"canonical_record":{"source":{"id":"1009.2066","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-10T17:53:31Z","cross_cats_sorted":[],"title_canon_sha256":"c7f3b6780fd473b42451d43d8336355bc4c23f075c924522ebc11099a0790eaa","abstract_canon_sha256":"a1ea02dddfa18ff1581992dc5a23a4ca5cf72a3c5040d06e4f6d26396a064944"},"schema_version":"1.0"},"canonical_sha256":"635957fa3b13afd7e856e14b2c2ea34b956de0de30e2e5ae2dd63546c5885429","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:31.885649Z","signature_b64":"LyObBCV1hExGwOYLfK43Hns1s+jKGLME30PW+BviiOMfvr1S2tJeYsej8piBZwt0OdIBNof08Dp97DVktBFKBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"635957fa3b13afd7e856e14b2c2ea34b956de0de30e2e5ae2dd63546c5885429","last_reissued_at":"2026-05-18T02:05:31.884922Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:31.884922Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.2066","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":"2026-05-18T02:05:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f/TAUIAGAZyfJGxOtmH6UXkuDFBK/VsNSkFkhYkvt79u3VhUPDyU6WjBHhDZ1keGSWW9r+hu3ix6zNfFWTb6Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:21:47.496303Z"},"content_sha256":"ce866b1f9a49f4a86212bae8edcf69fe66192fbdb01c83256cff2be03cbb81a2","schema_version":"1.0","event_id":"sha256:ce866b1f9a49f4a86212bae8edcf69fe66192fbdb01c83256cff2be03cbb81a2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:MNMVP6R3COX5P2CW4FFSYLVDJO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Photodissociation in proto-planetary nebulae. Hydrodynamical simulations and solutions for low-velocity multi-lobes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Guillermo Garcia-Segura","submitted_at":"2010-09-10T17:53:31Z","abstract_excerpt":"We explore the effects of photodissociation at the stages of post-asymptotic giant branch stars to find a mechanism able to produce multi-polar shapes. We perform two-dimensional gasdynamical simulations to model the effects of photodissociation in proto-planetary nebulae. We find that post-asymptotic giant branch stars with 7,000 K or hotter are able to photodissociate a large amount of the circumstellar gas. We compute several solutions for nebulae with low-velocity multi-lobes. We find that the early expansion of a dissociation front is crucial to understand the number of lobes in proto-pla"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.2066","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":"2026-05-18T02:05:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5AaERYAzpO4E3I2LUNYMJ2cOqAkdMAtlNGnNOLlb4uMV/ywPXWCKyvyhE8nIa5pFKu7xoslX6KpwzsZG9pmQBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:21:47.496911Z"},"content_sha256":"ea14c77ef9587e1e2d89a34043c85efe2b0200dc7ce3ac711926a04c81aa9a7e","schema_version":"1.0","event_id":"sha256:ea14c77ef9587e1e2d89a34043c85efe2b0200dc7ce3ac711926a04c81aa9a7e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MNMVP6R3COX5P2CW4FFSYLVDJO/bundle.json","state_url":"https://pith.science/pith/MNMVP6R3COX5P2CW4FFSYLVDJO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MNMVP6R3COX5P2CW4FFSYLVDJO/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":"2026-05-31T23:21:47Z","links":{"resolver":"https://pith.science/pith/MNMVP6R3COX5P2CW4FFSYLVDJO","bundle":"https://pith.science/pith/MNMVP6R3COX5P2CW4FFSYLVDJO/bundle.json","state":"https://pith.science/pith/MNMVP6R3COX5P2CW4FFSYLVDJO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MNMVP6R3COX5P2CW4FFSYLVDJO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:MNMVP6R3COX5P2CW4FFSYLVDJO","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":"a1ea02dddfa18ff1581992dc5a23a4ca5cf72a3c5040d06e4f6d26396a064944","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-10T17:53:31Z","title_canon_sha256":"c7f3b6780fd473b42451d43d8336355bc4c23f075c924522ebc11099a0790eaa"},"schema_version":"1.0","source":{"id":"1009.2066","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.2066","created_at":"2026-05-18T02:05:31Z"},{"alias_kind":"arxiv_version","alias_value":"1009.2066v1","created_at":"2026-05-18T02:05:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.2066","created_at":"2026-05-18T02:05:31Z"},{"alias_kind":"pith_short_12","alias_value":"MNMVP6R3COX5","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"MNMVP6R3COX5P2CW","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"MNMVP6R3","created_at":"2026-05-18T12:26:10Z"}],"graph_snapshots":[{"event_id":"sha256:ea14c77ef9587e1e2d89a34043c85efe2b0200dc7ce3ac711926a04c81aa9a7e","target":"graph","created_at":"2026-05-18T02:05:31Z","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":"We explore the effects of photodissociation at the stages of post-asymptotic giant branch stars to find a mechanism able to produce multi-polar shapes. We perform two-dimensional gasdynamical simulations to model the effects of photodissociation in proto-planetary nebulae. We find that post-asymptotic giant branch stars with 7,000 K or hotter are able to photodissociate a large amount of the circumstellar gas. We compute several solutions for nebulae with low-velocity multi-lobes. We find that the early expansion of a dissociation front is crucial to understand the number of lobes in proto-pla","authors_text":"Guillermo Garcia-Segura","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-10T17:53:31Z","title":"Photodissociation in proto-planetary nebulae. Hydrodynamical simulations and solutions for low-velocity multi-lobes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.2066","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:ce866b1f9a49f4a86212bae8edcf69fe66192fbdb01c83256cff2be03cbb81a2","target":"record","created_at":"2026-05-18T02:05:31Z","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":"a1ea02dddfa18ff1581992dc5a23a4ca5cf72a3c5040d06e4f6d26396a064944","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-10T17:53:31Z","title_canon_sha256":"c7f3b6780fd473b42451d43d8336355bc4c23f075c924522ebc11099a0790eaa"},"schema_version":"1.0","source":{"id":"1009.2066","kind":"arxiv","version":1}},"canonical_sha256":"635957fa3b13afd7e856e14b2c2ea34b956de0de30e2e5ae2dd63546c5885429","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"635957fa3b13afd7e856e14b2c2ea34b956de0de30e2e5ae2dd63546c5885429","first_computed_at":"2026-05-18T02:05:31.884922Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:31.884922Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LyObBCV1hExGwOYLfK43Hns1s+jKGLME30PW+BviiOMfvr1S2tJeYsej8piBZwt0OdIBNof08Dp97DVktBFKBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:31.885649Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.2066","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ce866b1f9a49f4a86212bae8edcf69fe66192fbdb01c83256cff2be03cbb81a2","sha256:ea14c77ef9587e1e2d89a34043c85efe2b0200dc7ce3ac711926a04c81aa9a7e"],"state_sha256":"5cf2c9b83e221aba2a399670d816fd08a1bb43dee10fb4289057b185d6e9ae9f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UTZ5819LCjjlMd0WQhrrhgUJi2LeJ8XT2dRq2jDr70fxXUlGB5Z48r8BePLiHgZIeS5LEJHIPwh5Q0JHe35YCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T23:21:47.499976Z","bundle_sha256":"4c1ea836811c2fd72671196546aa7bc3cca5a2eaf9a8e1b18d39de0429637740"}}