{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:R3REH6YF5KGLWM5FQB4HDQ2QHM","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":"8717510a99a320a68ee85ecf2686aa13b205aadc962a68522c962ac74d290cf8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-04-23T15:49:56Z","title_canon_sha256":"3bd36ab4125c02433e185c46a5988976fc43142794301c02e6d5c5153e885125"},"schema_version":"1.0","source":{"id":"0904.3722","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.3722","created_at":"2026-05-18T02:13:57Z"},{"alias_kind":"arxiv_version","alias_value":"0904.3722v1","created_at":"2026-05-18T02:13:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.3722","created_at":"2026-05-18T02:13:57Z"},{"alias_kind":"pith_short_12","alias_value":"R3REH6YF5KGL","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"R3REH6YF5KGLWM5F","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"R3REH6YF","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:d627aff213b8a062a0a2beaf38d723663a74321d7aeaf7420049086d0b1be355","target":"graph","created_at":"2026-05-18T02:13:57Z","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":"A strong signature of a circumstellar disc around a high-mass protostar has been inferred from high resolution methanol maser observations in NGC7538-IRS1 N. This interpretation has however been challenged with a bipolar outflow proposed as an alternative explanation. We compare the two proposed scenarios for best consistency with the observations. Using a newly developed formalism we model the optical depth of the maser emission at each observed point in the map and LOS velocity for the two scenarios. We find that if the emission is symmetric around a central peak in both space and LOS veloci","authors_text":"J. Conway, M. Elitzur, M. Pestalozzi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-04-23T15:49:56Z","title":"A differentially rotating disc in a high-mass protostellar system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.3722","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":"sha256:64f221fd8c3fa5304e10b704b1ef9f8144c37c9d0e47f5d71f8ffcbab93acf03","target":"record","created_at":"2026-05-18T02:13:57Z","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":"8717510a99a320a68ee85ecf2686aa13b205aadc962a68522c962ac74d290cf8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-04-23T15:49:56Z","title_canon_sha256":"3bd36ab4125c02433e185c46a5988976fc43142794301c02e6d5c5153e885125"},"schema_version":"1.0","source":{"id":"0904.3722","kind":"arxiv","version":1}},"canonical_sha256":"8ee243fb05ea8cbb33a5807871c3503b210940ebd57092f20bdf10e6373567e1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8ee243fb05ea8cbb33a5807871c3503b210940ebd57092f20bdf10e6373567e1","first_computed_at":"2026-05-18T02:13:57.728224Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:13:57.728224Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lx4M3WA+rXU61gzFMXO5oTzPHOqgJvWOs3j/F6OOkqj9ruwDpp1ESHHCakPj6IsgbiVpZgPByCyKMtp6rAIiDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:13:57.728883Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.3722","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:64f221fd8c3fa5304e10b704b1ef9f8144c37c9d0e47f5d71f8ffcbab93acf03","sha256:d627aff213b8a062a0a2beaf38d723663a74321d7aeaf7420049086d0b1be355"],"state_sha256":"c3d6b54073a08713cea1f45a8aa3b9937834cd354a58764ff09b772906df8b6c"}