{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:GUSICETV52SURR2I5IA7LMPZTT","short_pith_number":"pith:GUSICETV","canonical_record":{"source":{"id":"1108.3878","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-19T02:44:21Z","cross_cats_sorted":[],"title_canon_sha256":"8340855042d8fe03c9028329b52f4493627687583e805be3c90ada8ec5e42f10","abstract_canon_sha256":"1f2c1a0976c72fa760cdff60c152c065a9d753acf1f27bbf4794bc30f1b89111"},"schema_version":"1.0"},"canonical_sha256":"3524811275eea548c748ea01f5b1f99cceb555301996e7a768c1f50d3694d41c","source":{"kind":"arxiv","id":"1108.3878","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.3878","created_at":"2026-05-18T02:00:50Z"},{"alias_kind":"arxiv_version","alias_value":"1108.3878v4","created_at":"2026-05-18T02:00:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.3878","created_at":"2026-05-18T02:00:50Z"},{"alias_kind":"pith_short_12","alias_value":"GUSICETV52SU","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"GUSICETV52SURR2I","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"GUSICETV","created_at":"2026-05-18T12:26:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:GUSICETV52SURR2I5IA7LMPZTT","target":"record","payload":{"canonical_record":{"source":{"id":"1108.3878","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-19T02:44:21Z","cross_cats_sorted":[],"title_canon_sha256":"8340855042d8fe03c9028329b52f4493627687583e805be3c90ada8ec5e42f10","abstract_canon_sha256":"1f2c1a0976c72fa760cdff60c152c065a9d753acf1f27bbf4794bc30f1b89111"},"schema_version":"1.0"},"canonical_sha256":"3524811275eea548c748ea01f5b1f99cceb555301996e7a768c1f50d3694d41c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:50.617420Z","signature_b64":"nHWn3a2NxKv6FU7Y9IPrHNH9gWhLAjVAkqOPGtg6QFdqS2HZ/PgLsvlYWLc7HPUPJdhdiiIVUFuVvS+0dCaHAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3524811275eea548c748ea01f5b1f99cceb555301996e7a768c1f50d3694d41c","last_reissued_at":"2026-05-18T02:00:50.616722Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:50.616722Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1108.3878","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:00:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3cnLvvPW0sax0eBwS0n1IS1cwKrw8Z4qfNorADKzrtO5in0WUiWGiwt9p640OEXBWfD0eQ09SwaUfVmc/+2QDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T14:42:22.542736Z"},"content_sha256":"a103c59c5de47889e6b0368733b045f2732269d88c94bad58fab43b64fc44504","schema_version":"1.0","event_id":"sha256:a103c59c5de47889e6b0368733b045f2732269d88c94bad58fab43b64fc44504"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:GUSICETV52SURR2I5IA7LMPZTT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Multi-Epoch, Simultaneous Water and Methanol Maser Survey toward Intermediate-Mass Young Stellar Objects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Chung Sik Oh, Do-Young Byun, Hyunwoo Kang, Jae-Han Bae, Kee-Tae Kim, So-Young Youn, Won-Ju Kim","submitted_at":"2011-08-19T02:44:21Z","abstract_excerpt":"We report a multi-epoch, simultaneous 22 GHz H2O and 44 GHz class I CH3OH maser line survey towards 180 intermediate-mass young stellar objects, including 14 Class 0, 19 Class I objects, and 147 Herbig Ae/Be stars. We detected H2O and CH3OH maser emission towards 16 (9%) and 10 (6%) sources with one new H2O and six new CH3OH maser sources. The detection rates of both masers rapidly decrease as the central (proto)stars evolve, which is contrary to the trends in high-mass star-forming regions. This suggests that the excitations of the two masers are closely related to the evolutionary stage of t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.3878","kind":"arxiv","version":4},"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":"2026-05-18T02:00:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jvUZcnhO0yfIdTZO7laNDflh8uaV7AAZTrYZ050SJoq4EgW6bQ4lp0QzpX6RMEPQ7NsosLeEvdAZiFsDXDzxCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T14:42:22.543440Z"},"content_sha256":"7f3112d8bb17efcadad82b0b94be12406ea45593b10dc69fe4980e01c936a5d8","schema_version":"1.0","event_id":"sha256:7f3112d8bb17efcadad82b0b94be12406ea45593b10dc69fe4980e01c936a5d8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GUSICETV52SURR2I5IA7LMPZTT/bundle.json","state_url":"https://pith.science/pith/GUSICETV52SURR2I5IA7LMPZTT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GUSICETV52SURR2I5IA7LMPZTT/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":"2026-05-25T14:42:22Z","links":{"resolver":"https://pith.science/pith/GUSICETV52SURR2I5IA7LMPZTT","bundle":"https://pith.science/pith/GUSICETV52SURR2I5IA7LMPZTT/bundle.json","state":"https://pith.science/pith/GUSICETV52SURR2I5IA7LMPZTT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GUSICETV52SURR2I5IA7LMPZTT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:GUSICETV52SURR2I5IA7LMPZTT","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":"1f2c1a0976c72fa760cdff60c152c065a9d753acf1f27bbf4794bc30f1b89111","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-19T02:44:21Z","title_canon_sha256":"8340855042d8fe03c9028329b52f4493627687583e805be3c90ada8ec5e42f10"},"schema_version":"1.0","source":{"id":"1108.3878","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.3878","created_at":"2026-05-18T02:00:50Z"},{"alias_kind":"arxiv_version","alias_value":"1108.3878v4","created_at":"2026-05-18T02:00:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.3878","created_at":"2026-05-18T02:00:50Z"},{"alias_kind":"pith_short_12","alias_value":"GUSICETV52SU","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"GUSICETV52SURR2I","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"GUSICETV","created_at":"2026-05-18T12:26:30Z"}],"graph_snapshots":[{"event_id":"sha256:7f3112d8bb17efcadad82b0b94be12406ea45593b10dc69fe4980e01c936a5d8","target":"graph","created_at":"2026-05-18T02:00:50Z","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 report a multi-epoch, simultaneous 22 GHz H2O and 44 GHz class I CH3OH maser line survey towards 180 intermediate-mass young stellar objects, including 14 Class 0, 19 Class I objects, and 147 Herbig Ae/Be stars. We detected H2O and CH3OH maser emission towards 16 (9%) and 10 (6%) sources with one new H2O and six new CH3OH maser sources. The detection rates of both masers rapidly decrease as the central (proto)stars evolve, which is contrary to the trends in high-mass star-forming regions. This suggests that the excitations of the two masers are closely related to the evolutionary stage of t","authors_text":"Chung Sik Oh, Do-Young Byun, Hyunwoo Kang, Jae-Han Bae, Kee-Tae Kim, So-Young Youn, Won-Ju Kim","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-19T02:44:21Z","title":"A Multi-Epoch, Simultaneous Water and Methanol Maser Survey toward Intermediate-Mass Young Stellar Objects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.3878","kind":"arxiv","version":4},"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:a103c59c5de47889e6b0368733b045f2732269d88c94bad58fab43b64fc44504","target":"record","created_at":"2026-05-18T02:00:50Z","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":"1f2c1a0976c72fa760cdff60c152c065a9d753acf1f27bbf4794bc30f1b89111","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-19T02:44:21Z","title_canon_sha256":"8340855042d8fe03c9028329b52f4493627687583e805be3c90ada8ec5e42f10"},"schema_version":"1.0","source":{"id":"1108.3878","kind":"arxiv","version":4}},"canonical_sha256":"3524811275eea548c748ea01f5b1f99cceb555301996e7a768c1f50d3694d41c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3524811275eea548c748ea01f5b1f99cceb555301996e7a768c1f50d3694d41c","first_computed_at":"2026-05-18T02:00:50.616722Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:50.616722Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nHWn3a2NxKv6FU7Y9IPrHNH9gWhLAjVAkqOPGtg6QFdqS2HZ/PgLsvlYWLc7HPUPJdhdiiIVUFuVvS+0dCaHAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:50.617420Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.3878","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a103c59c5de47889e6b0368733b045f2732269d88c94bad58fab43b64fc44504","sha256:7f3112d8bb17efcadad82b0b94be12406ea45593b10dc69fe4980e01c936a5d8"],"state_sha256":"526c6e8db90683dd47445818bcf7ac79698378d1b7141eed6c0cacf3b67282a1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r/PAbjdtEt394wTggDzYixd8FRFFZGUx6xMglmCIKfdjXykhVCQydmPOKlTr709V77jK82KgVn0rnV6i7swECw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T14:42:22.546828Z","bundle_sha256":"3c23d51f8dd7e8a185993d2ab2eb7cab19e9a9f32766005b3cd585e4de178d93"}}