{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:UZQ2RFUSF67PP6QP5B4MY65SQI","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":"3e928230bb65c192e5ade571c4e86247dcc882883dcc9c4b2cf53d4d0a599625","cross_cats_sorted":["astro-ph.EP","astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-02-29T12:28:36Z","title_canon_sha256":"0e22a8cd32272b75b688396e7e52b70a551ea1d96399bb6d54d1c16813636ea8"},"schema_version":"1.0","source":{"id":"2402.19099","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.19099","created_at":"2026-07-05T07:53:33Z"},{"alias_kind":"arxiv_version","alias_value":"2402.19099v2","created_at":"2026-07-05T07:53:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.19099","created_at":"2026-07-05T07:53:33Z"},{"alias_kind":"pith_short_12","alias_value":"UZQ2RFUSF67P","created_at":"2026-07-05T07:53:33Z"},{"alias_kind":"pith_short_16","alias_value":"UZQ2RFUSF67PP6QP","created_at":"2026-07-05T07:53:33Z"},{"alias_kind":"pith_short_8","alias_value":"UZQ2RFUS","created_at":"2026-07-05T07:53:33Z"}],"graph_snapshots":[{"event_id":"sha256:78ef54b601a44acaa8d449a98ef5cfd9805243ef785679ef9d0537849064c104","target":"graph","created_at":"2026-07-05T07:53:33Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2402.19099/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Streamers bring gas from outer regions to protostellar systems and could change the chemical composition around protostars and protoplanetary disks. We have carried out mapping observations of carbon-chain species (HC$_3$N, HC$_5$N, CCH, and CCS) in the 3mm and 7mm bands toward the streamer flowing to the Class 0 young stellar object (YSO) Per-emb-2 with the Nobeyama 45m radio telescope. A region with a diameter of $\\sim0.04$ pc is located north with a distance of $\\sim 20,500$ au from the YSO. The streamer connects to this north region which is the origin of the streamer. The reservoir has hi","authors_text":"Anika Schmiedeke, Dominique M. Segura-Cox, Jaime E Pineda, Kotomi Taniguchi, Paola Caselli, Rachel K. Friesen, Tomomi Shimoikura","cross_cats":["astro-ph.EP","astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-02-29T12:28:36Z","title":"The Reservoir of the Per-emb-2 Streamer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.19099","kind":"arxiv","version":2},"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:da25ba4374bb96b2e167e5d248d4074db930743fcc1e37af84822096abc2c6b9","target":"record","created_at":"2026-07-05T07:53:33Z","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":"3e928230bb65c192e5ade571c4e86247dcc882883dcc9c4b2cf53d4d0a599625","cross_cats_sorted":["astro-ph.EP","astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-02-29T12:28:36Z","title_canon_sha256":"0e22a8cd32272b75b688396e7e52b70a551ea1d96399bb6d54d1c16813636ea8"},"schema_version":"1.0","source":{"id":"2402.19099","kind":"arxiv","version":2}},"canonical_sha256":"a661a896922fbef7fa0fe878cc7bb28214a173e289b7b902851ad0cbe79a5080","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a661a896922fbef7fa0fe878cc7bb28214a173e289b7b902851ad0cbe79a5080","first_computed_at":"2026-07-05T07:53:33.564974Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:53:33.564974Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"e1auAHFotEtW4R+fC7wIKT50seCgS3hgd9JflioqKXhNZhgYXisN9Pv/4yABpygv2rL3h9/eLTnyuCFbr812Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T07:53:33.565381Z","signed_message":"canonical_sha256_bytes"},"source_id":"2402.19099","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:da25ba4374bb96b2e167e5d248d4074db930743fcc1e37af84822096abc2c6b9","sha256:78ef54b601a44acaa8d449a98ef5cfd9805243ef785679ef9d0537849064c104"],"state_sha256":"4c2b0e292162868e0da9639c8ba791e5dab795951410467867e656fd9ac1ea98"}