{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:ZQK62HCQRPWW4YLM5XZO4DZZUH","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":"8c5dbc986571771d584969882223abc3eeef76426412ac4d379e40ad269e274b","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-29T14:26:19Z","title_canon_sha256":"b1f1cebe31962a453065b291bf1795d2a0f53e7315ff1977d675109466d51b2b"},"schema_version":"1.0","source":{"id":"1311.7576","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.7576","created_at":"2026-05-18T00:43:43Z"},{"alias_kind":"arxiv_version","alias_value":"1311.7576v1","created_at":"2026-05-18T00:43:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.7576","created_at":"2026-05-18T00:43:43Z"},{"alias_kind":"pith_short_12","alias_value":"ZQK62HCQRPWW","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"ZQK62HCQRPWW4YLM","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"ZQK62HCQ","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:ecefb1d9d3c037c980f435711feaa6c6138be7f5f834d3ed078d1f6251b9931f","target":"graph","created_at":"2026-05-18T00:43:43Z","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":"Cha-MMS1 was mapped in the NH_3(1,1) line and the 1.2 cm continuum using the Australia Telescope Compact Array, ATCA. The angular resolution of the ATCA observations is 7'' (~ 1000 AU), and the velocity resolution is 50 m s^{-1}. The core was also mapped with the 64-m Parkes telesope in the NH_3(1,1) and (2,2) lines. Observations from Herschel Space Observatory and Spitzer Space telescope were used to help interpretation. A compact high column density core with a steep velocity gradient is detected in ammonia, with a fractional ammonia abundance compatible with determinations towards other den","authors_text":"C. M. Walmsley, J. B. Whiteoak, J. Harju, M. J. Mantere, M. S. V\\\"ais\\\"al\\\"a, O. Miettinen, R. S. Sault","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-29T14:26:19Z","title":"High-resolution ammonia mapping of the very young protostellar core Chamaeleon-MMS1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.7576","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:c1d4bfe694ef4fd39ca8f2ce72771b7f44da9d99238865691c0b39aa090021df","target":"record","created_at":"2026-05-18T00:43:43Z","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":"8c5dbc986571771d584969882223abc3eeef76426412ac4d379e40ad269e274b","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-29T14:26:19Z","title_canon_sha256":"b1f1cebe31962a453065b291bf1795d2a0f53e7315ff1977d675109466d51b2b"},"schema_version":"1.0","source":{"id":"1311.7576","kind":"arxiv","version":1}},"canonical_sha256":"cc15ed1c508bed6e616cedf2ee0f39a1e1705ecbb52d7b6023acda67a7d6c9fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cc15ed1c508bed6e616cedf2ee0f39a1e1705ecbb52d7b6023acda67a7d6c9fd","first_computed_at":"2026-05-18T00:43:43.928862Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:43:43.928862Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WhrHQKPmQ09kIX6D534o9gNSywGXoFNi+vVXj2wKQfEFweD45fang83jtfYf2Npo8qgvQKE/llBcaKvLA2JDAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:43:43.929404Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.7576","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c1d4bfe694ef4fd39ca8f2ce72771b7f44da9d99238865691c0b39aa090021df","sha256:ecefb1d9d3c037c980f435711feaa6c6138be7f5f834d3ed078d1f6251b9931f"],"state_sha256":"d399cad5261b4f4b1aa44f59665d5d30658a403783dc05d6cdfd919a829cb410"}