{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:BDFYZEFNSG5DNUEMNXGJ7ZTIWU","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":"49c2c19fdefcb2ecda1110be16af59b7e507089ee5672d3e47267009482d9a2d","cross_cats_sorted":["astro-ph.EP","astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-02-07T16:34:10Z","title_canon_sha256":"e7de75a1966c74d900d79d37a234e100101141b4ca7bf778994a57b3dec9f480"},"schema_version":"1.0","source":{"id":"1902.02720","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.02720","created_at":"2026-05-17T23:51:30Z"},{"alias_kind":"arxiv_version","alias_value":"1902.02720v1","created_at":"2026-05-17T23:51:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.02720","created_at":"2026-05-17T23:51:30Z"},{"alias_kind":"pith_short_12","alias_value":"BDFYZEFNSG5D","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"BDFYZEFNSG5DNUEM","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"BDFYZEFN","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:5758efa6f41297a6e7a10bcdf29a0e20c5206b0a514c9a4eca7667bddf46950a","target":"graph","created_at":"2026-05-17T23:51:30Z","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":"Planets form in protoplanetary disks and inherit their chemical compositions. It is thus crucial to map the distribution and investigate the formation of simple organics, such as formaldehyde and methanol, in protoplanetary disks. We analyze ALMA observations of the nearby disk-jet system around the T Tauri star DG Tau in the o-H$_2$CO $3_{1,2}-2_{1,1}$ and CH$_3$OH $3_{-2,2}-4_{-1,4}$ E, $5_{0,5}-4_{0,4}$ A transitions at an unprecedented resolution of $\\sim0.15\"$, i.e., $\\sim18$ au at a distance of 121 pc. The H$_2$CO emission originates from a rotating ring extending from $\\sim40$ au with a","authors_text":"A. Garufi, C. Ceccarelli, C. Codella, C. Favre, D. Coffey, D. Fedele, E. Bianchi, F. Bacciotti, G. Guidi, I. Kamp, K. L. J. Rygl, L. Podio, L. Testi","cross_cats":["astro-ph.EP","astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-02-07T16:34:10Z","title":"Organic molecules in the protoplanetary disk of DG Tau revealed by ALMA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.02720","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:f9d89da5b4ca6518e52dcb7e1a775b5be5c80dff557b68f053d5d886b9c330d6","target":"record","created_at":"2026-05-17T23:51:30Z","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":"49c2c19fdefcb2ecda1110be16af59b7e507089ee5672d3e47267009482d9a2d","cross_cats_sorted":["astro-ph.EP","astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-02-07T16:34:10Z","title_canon_sha256":"e7de75a1966c74d900d79d37a234e100101141b4ca7bf778994a57b3dec9f480"},"schema_version":"1.0","source":{"id":"1902.02720","kind":"arxiv","version":1}},"canonical_sha256":"08cb8c90ad91ba36d08c6dcc9fe668b5394c50db67b6fee4d4d58460d7c91ead","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"08cb8c90ad91ba36d08c6dcc9fe668b5394c50db67b6fee4d4d58460d7c91ead","first_computed_at":"2026-05-17T23:51:30.019116Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:30.019116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OcpSWzLHb+RtvF9HaJIISqynTQpJgDnmBnHO0DIQ8k+Jrm+etv09uohEo9gSwmsZPj0HH7El9BEOcVPhVRYQDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:30.019515Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.02720","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f9d89da5b4ca6518e52dcb7e1a775b5be5c80dff557b68f053d5d886b9c330d6","sha256:5758efa6f41297a6e7a10bcdf29a0e20c5206b0a514c9a4eca7667bddf46950a"],"state_sha256":"fc51b88eb5925f5f52e39189dd324364713c03c27c25eaca9e9e07a6f89cbcc2"}