{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:UEFHIJDZ4UNR3A6W7NVBROPIF5","short_pith_number":"pith:UEFHIJDZ","canonical_record":{"source":{"id":"1801.04174","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-12T14:15:50Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"eb8c59b49a747595a30b0af520daf659b30f2f129e9e6687ceff52839b3b0395","abstract_canon_sha256":"253e9cf1567cbc89be3d6f0a23770f87f4607fd2ab923635f78499225b83ebad"},"schema_version":"1.0"},"canonical_sha256":"a10a742479e51b1d83d6fb6a18b9e82f7166ee08d1bc771da742efc913c0cb66","source":{"kind":"arxiv","id":"1801.04174","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.04174","created_at":"2026-05-18T00:22:23Z"},{"alias_kind":"arxiv_version","alias_value":"1801.04174v2","created_at":"2026-05-18T00:22:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.04174","created_at":"2026-05-18T00:22:23Z"},{"alias_kind":"pith_short_12","alias_value":"UEFHIJDZ4UNR","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"UEFHIJDZ4UNR3A6W","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"UEFHIJDZ","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:UEFHIJDZ4UNR3A6W7NVBROPIF5","target":"record","payload":{"canonical_record":{"source":{"id":"1801.04174","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-12T14:15:50Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"eb8c59b49a747595a30b0af520daf659b30f2f129e9e6687ceff52839b3b0395","abstract_canon_sha256":"253e9cf1567cbc89be3d6f0a23770f87f4607fd2ab923635f78499225b83ebad"},"schema_version":"1.0"},"canonical_sha256":"a10a742479e51b1d83d6fb6a18b9e82f7166ee08d1bc771da742efc913c0cb66","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:22:23.231230Z","signature_b64":"zgnH53zX4qB2iBVa1iEidtizjM0Gftv22GppXHsmO2UvF6PT1l8cpwwW/+rCizoBQKra/PwKdKYD89dI6FpuAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a10a742479e51b1d83d6fb6a18b9e82f7166ee08d1bc771da742efc913c0cb66","last_reissued_at":"2026-05-18T00:22:23.230753Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:22:23.230753Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.04174","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:22:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6U4p8RUFKZ1k2XDiGGm0kZUhtjiU4t2RAskl/cVzZcc7Rqbj3wf3Ds+5aq0G+shnYasIvcss4a3E7p4U6NinDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T08:39:56.622518Z"},"content_sha256":"fd78494bf21c94b81cbd0666eb8751120a52fe85c41e88fa2f949f022b3afd5d","schema_version":"1.0","event_id":"sha256:fd78494bf21c94b81cbd0666eb8751120a52fe85c41e88fa2f949f022b3afd5d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:UEFHIJDZ4UNR3A6W7NVBROPIF5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chemical and Physical Picture of IRAS 16293-2422 Source B at a Sub-arcsecond Scale Studied with ALMA","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Ana L\\'opez-Sepulcre, Bertrand Lefloch, C\\'ecile Favre, Cecilia Ceccarelli, Kana Moriwaki, Nami Sakai, Satoshi Yamamoto, Shusuke Onishi, Yoko Oya, Yoshimasa Watanabe","submitted_at":"2018-01-12T14:15:50Z","abstract_excerpt":"We have analyzed the OCS, H$_2$CS, CH$_3$OH, and HCOOCH$_3$ data observed toward the low-mass protostar IRAS 16293--2422 Source B at a sub-arcsecond resolution with ALMA. A clear chemical differentiation is seen in their distributions; OCS and H$_2$CS are extended with a slight rotation signature, while CH$_3$OH and HCOOCH$_3$ are concentrated near the protostar. Such a chemical change in the vicinity of the protostar is similar to the companion (Source A) case. The extended component is interpreted by the infalling-rotating envelope model with a nearly face-on configuration. The radius of the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.04174","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:22:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pipq2PyMyUslUC9LkiE551WCY51ll0bYoVVQ3vRn4dYU18cxCWbmYa7EalalfOSDrmx9YlYl7EsUl4TmXcEqDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T08:39:56.622874Z"},"content_sha256":"033c081050427e910c13c2de9665cd9d62b0ef38d7828aa95598266685ce024d","schema_version":"1.0","event_id":"sha256:033c081050427e910c13c2de9665cd9d62b0ef38d7828aa95598266685ce024d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UEFHIJDZ4UNR3A6W7NVBROPIF5/bundle.json","state_url":"https://pith.science/pith/UEFHIJDZ4UNR3A6W7NVBROPIF5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UEFHIJDZ4UNR3A6W7NVBROPIF5/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-03T08:39:56Z","links":{"resolver":"https://pith.science/pith/UEFHIJDZ4UNR3A6W7NVBROPIF5","bundle":"https://pith.science/pith/UEFHIJDZ4UNR3A6W7NVBROPIF5/bundle.json","state":"https://pith.science/pith/UEFHIJDZ4UNR3A6W7NVBROPIF5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UEFHIJDZ4UNR3A6W7NVBROPIF5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:UEFHIJDZ4UNR3A6W7NVBROPIF5","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":"253e9cf1567cbc89be3d6f0a23770f87f4607fd2ab923635f78499225b83ebad","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-12T14:15:50Z","title_canon_sha256":"eb8c59b49a747595a30b0af520daf659b30f2f129e9e6687ceff52839b3b0395"},"schema_version":"1.0","source":{"id":"1801.04174","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.04174","created_at":"2026-05-18T00:22:23Z"},{"alias_kind":"arxiv_version","alias_value":"1801.04174v2","created_at":"2026-05-18T00:22:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.04174","created_at":"2026-05-18T00:22:23Z"},{"alias_kind":"pith_short_12","alias_value":"UEFHIJDZ4UNR","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"UEFHIJDZ4UNR3A6W","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"UEFHIJDZ","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:033c081050427e910c13c2de9665cd9d62b0ef38d7828aa95598266685ce024d","target":"graph","created_at":"2026-05-18T00:22:23Z","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":"We have analyzed the OCS, H$_2$CS, CH$_3$OH, and HCOOCH$_3$ data observed toward the low-mass protostar IRAS 16293--2422 Source B at a sub-arcsecond resolution with ALMA. A clear chemical differentiation is seen in their distributions; OCS and H$_2$CS are extended with a slight rotation signature, while CH$_3$OH and HCOOCH$_3$ are concentrated near the protostar. Such a chemical change in the vicinity of the protostar is similar to the companion (Source A) case. The extended component is interpreted by the infalling-rotating envelope model with a nearly face-on configuration. The radius of the","authors_text":"Ana L\\'opez-Sepulcre, Bertrand Lefloch, C\\'ecile Favre, Cecilia Ceccarelli, Kana Moriwaki, Nami Sakai, Satoshi Yamamoto, Shusuke Onishi, Yoko Oya, Yoshimasa Watanabe","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-12T14:15:50Z","title":"Chemical and Physical Picture of IRAS 16293-2422 Source B at a Sub-arcsecond Scale Studied with ALMA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.04174","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:fd78494bf21c94b81cbd0666eb8751120a52fe85c41e88fa2f949f022b3afd5d","target":"record","created_at":"2026-05-18T00:22:23Z","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":"253e9cf1567cbc89be3d6f0a23770f87f4607fd2ab923635f78499225b83ebad","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-12T14:15:50Z","title_canon_sha256":"eb8c59b49a747595a30b0af520daf659b30f2f129e9e6687ceff52839b3b0395"},"schema_version":"1.0","source":{"id":"1801.04174","kind":"arxiv","version":2}},"canonical_sha256":"a10a742479e51b1d83d6fb6a18b9e82f7166ee08d1bc771da742efc913c0cb66","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a10a742479e51b1d83d6fb6a18b9e82f7166ee08d1bc771da742efc913c0cb66","first_computed_at":"2026-05-18T00:22:23.230753Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:22:23.230753Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zgnH53zX4qB2iBVa1iEidtizjM0Gftv22GppXHsmO2UvF6PT1l8cpwwW/+rCizoBQKra/PwKdKYD89dI6FpuAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:22:23.231230Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.04174","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fd78494bf21c94b81cbd0666eb8751120a52fe85c41e88fa2f949f022b3afd5d","sha256:033c081050427e910c13c2de9665cd9d62b0ef38d7828aa95598266685ce024d"],"state_sha256":"c8d7dad438734ae6dbc10ccf488f7727769730f220797738cf039243dfc86fec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y40Y0i6Qau6SEooMFL6FEUirj3sFyyPfj8fzDWNAejYY7RBM6vBRQI0zRePW+a0cFKr/g8ydOnjpv4hmL08/Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T08:39:56.624925Z","bundle_sha256":"738964c41c07baa57d7bac55b476668ae318d8bcff560d36446b29c7bdeaf3cd"}}