{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:X6EBWMJ4BJSKBLNQTPYNP2XMUN","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":"3c074f130ac43adca3314d0bb72623a107a24bfb3eb7286a48587e9f4c951b4f","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-01-04T15:40:08Z","title_canon_sha256":"e640463cc393d1c04c281f0f9ef298358d47333094feefa99674d2ddc994d3c9"},"schema_version":"1.0","source":{"id":"1601.00539","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.00539","created_at":"2026-05-18T01:21:25Z"},{"alias_kind":"arxiv_version","alias_value":"1601.00539v1","created_at":"2026-05-18T01:21:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.00539","created_at":"2026-05-18T01:21:25Z"},{"alias_kind":"pith_short_12","alias_value":"X6EBWMJ4BJSK","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"X6EBWMJ4BJSKBLNQ","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"X6EBWMJ4","created_at":"2026-05-18T12:30:51Z"}],"graph_snapshots":[{"event_id":"sha256:6f702450369601b5a6c26af8b1568b6df6020b66e641c3609d70a06d250432c7","target":"graph","created_at":"2026-05-18T01:21:25Z","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":"Aims: Using the unprecedented combination of high resolution and sensitivity offered by ALMA, we aim to investigate whether and how hot corinos, circumstellar disks, and ejected gas are related in young solar-mass protostars. Methods: We observed CH$_3$CHO and deuterated water (HDO) high-excitation ($E_{\\rm u}$ up to 335 K) lines towards the Sun-like protostar HH212--MM1. Results: For the first time, we have obtained images of CH$_3$CHO and HDO emission in the inner $\\simeq$ 100 AU of HH212. The multifrequency line analysis allows us to contrain the density ($\\geq$ 10$^{7}$ cm$^{-3}$), tempera","authors_text":"A. Gusdorf, B. Lefloch, C. Ceccarelli, C. Codella, F. Fontani, L. Podio, M. Tafalla, R. Bachiller, S. Cabrit, S. Leurini","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-01-04T15:40:08Z","title":"Water and acetaldehyde in HH212: The first hot corino in Orion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.00539","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":"sha256:7a12a1f1d42488e31ca623aa66fc7a626763fc5e6a9daa201485c7d2f3f34d99","target":"record","created_at":"2026-05-18T01:21:25Z","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":"3c074f130ac43adca3314d0bb72623a107a24bfb3eb7286a48587e9f4c951b4f","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-01-04T15:40:08Z","title_canon_sha256":"e640463cc393d1c04c281f0f9ef298358d47333094feefa99674d2ddc994d3c9"},"schema_version":"1.0","source":{"id":"1601.00539","kind":"arxiv","version":1}},"canonical_sha256":"bf881b313c0a64a0adb09bf0d7eaeca362084cfc8551545ffac97f71293b0710","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bf881b313c0a64a0adb09bf0d7eaeca362084cfc8551545ffac97f71293b0710","first_computed_at":"2026-05-18T01:21:25.542775Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:21:25.542775Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Rzzn4gJFoO1LhoX8xl7QZ2xkwo35sBWfCHONaaesh5TJZUWpn3bdC5ga2QugxZtLcComc8DFFO34bG3D8w4uBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:21:25.543486Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.00539","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7a12a1f1d42488e31ca623aa66fc7a626763fc5e6a9daa201485c7d2f3f34d99","sha256:6f702450369601b5a6c26af8b1568b6df6020b66e641c3609d70a06d250432c7"],"state_sha256":"79d4c0e76c62bcf4f6d530eddb3506246d14396c9d95f360126afd5789afd293"}