{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:UZHWW3CWSRIKPAIWEDM4MRJLXK","short_pith_number":"pith:UZHWW3CW","canonical_record":{"source":{"id":"1709.02052","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-09-07T02:48:06Z","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"title_canon_sha256":"a8a96c56df8a6b018fd75af335e8f5100e837f70318f8cd639116f2ea940c59f","abstract_canon_sha256":"82b2e3a9187953ce3ce4a0448fe6ba5ed9d83211c0003c701cdb94522e0329f5"},"schema_version":"1.0"},"canonical_sha256":"a64f6b6c569450a7811620d9c6452bba95f75b8492b46e2e19df442aabcf8802","source":{"kind":"arxiv","id":"1709.02052","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.02052","created_at":"2026-05-18T00:31:11Z"},{"alias_kind":"arxiv_version","alias_value":"1709.02052v1","created_at":"2026-05-18T00:31:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.02052","created_at":"2026-05-18T00:31:11Z"},{"alias_kind":"pith_short_12","alias_value":"UZHWW3CWSRIK","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"UZHWW3CWSRIKPAIW","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"UZHWW3CW","created_at":"2026-05-18T12:31:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:UZHWW3CWSRIKPAIWEDM4MRJLXK","target":"record","payload":{"canonical_record":{"source":{"id":"1709.02052","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-09-07T02:48:06Z","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"title_canon_sha256":"a8a96c56df8a6b018fd75af335e8f5100e837f70318f8cd639116f2ea940c59f","abstract_canon_sha256":"82b2e3a9187953ce3ce4a0448fe6ba5ed9d83211c0003c701cdb94522e0329f5"},"schema_version":"1.0"},"canonical_sha256":"a64f6b6c569450a7811620d9c6452bba95f75b8492b46e2e19df442aabcf8802","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:31:11.689858Z","signature_b64":"VG5JOunv0SxyyMDu1PzOMFYSiQZuLr+72rMRV7gPp4DBO0zmYexDFBOVKKbL71Z+gFpqImmObaOuLxztCu1jAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a64f6b6c569450a7811620d9c6452bba95f75b8492b46e2e19df442aabcf8802","last_reissued_at":"2026-05-18T00:31:11.689075Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:31:11.689075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.02052","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:31:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sEEC6sPQLPsfecdXOYchB34KZHguHvNx5QV9TQJ1WcloOEjMJeuHF74jLclQWJbKd4hwrfFguVOOMao5Gwr4Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:01:00.151444Z"},"content_sha256":"de07a683388d0a24173a7653a14a646e0fe0cb97511cd7a1a9e4a2ae7363eb14","schema_version":"1.0","event_id":"sha256:de07a683388d0a24173a7653a14a646e0fe0cb97511cd7a1a9e4a2ae7363eb14"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:UZHWW3CWSRIKPAIWEDM4MRJLXK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"How do stars gain their mass? A JCMT/SCUBA-2 Transient Survey of Protostars in Nearby Star Forming Regions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.IM"],"primary_cat":"astro-ph.SR","authors_text":"Aleks Scholz, Andy Pon, A-Ran Lyo, Archana Soam, Bhavana Lalchand, Chang Won Lee, Chin-Fei Lee, Dimitris Stamatellos, Doug Johnstone, Eduard I. Vorobiov, E'lisa M. Lee, Emily Drabek-Maunder, Eun Jung Chung, Feng Long, Geoffrey C. Bower, Graham S. Bell, Gregory J. Herczeg, Gwanjeong Kim, Harriet Parsons, Helen Kirk, Hongchi Wang, Huei-Ru Vivien Chen, Hyunju Yoo, Jaehan Bae, James Lane, Jan Forbrich, Jennifer Hatchell, Jeong-Eun Lee, Jianjun Zhou, Jonathan P. Williams, Kevin Lacaille, Kyoung Hee Kim, Lei Qian, Lynne A. Hillenbrand, Manash R. Samal, Michael M. Dunham, Miju Kang, Mi-Ryang Kim, Oscar Morata, Peter Scicluna, Ramprasad Rao, Sarah Graves, Satoko Takahashi, Scott Chapman, Shigehisa Takakuwa, Shih-Ping Lai, Shu-ichiro Inutsuka, Steve Mairs, Stewart P. S. Eyres, Sung-Ju Kang, Wen-Ping Chen, Woojin Kwon, Ya-Wen Tang, Yi-Jehng Kuan, Yiren Wang, Yuri Aikawa, Yuxin He, Zhaohuan Zhu","submitted_at":"2017-09-07T02:48:06Z","abstract_excerpt":"Most protostars have luminosities that are fainter than expected from steady accretion over the protostellar lifetime. The solution to this problem may lie in episodic mass accretion -- prolonged periods of very low accretion punctuated by short bursts of rapid accretion. However, the timescale and amplitude for variability at the protostellar phase is almost entirely unconstrained. In \"A JCMT/SCUBA-2 Transient Survey of Protostars in Nearby Star Forming Regions\", we are monitoring monthly with SCUBA-2 the sub-mm emission in eight fields within nearby (<500 pc) star forming regions to measure "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.02052","kind":"arxiv","version":1},"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":"2026-05-18T00:31:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vZwSs+Gw4n0GCiueJ+9UlNN8LjpO2RqTALpxtTCzLOJydoR1ZXCwKZu5Gl8CsA8hTOim6hFFb3eI3mcxgQh4AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:01:00.151871Z"},"content_sha256":"b43f0b955c4a6adf48e296234641ee1b3ce5efbffafa315c7e12d89f65118549","schema_version":"1.0","event_id":"sha256:b43f0b955c4a6adf48e296234641ee1b3ce5efbffafa315c7e12d89f65118549"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UZHWW3CWSRIKPAIWEDM4MRJLXK/bundle.json","state_url":"https://pith.science/pith/UZHWW3CWSRIKPAIWEDM4MRJLXK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UZHWW3CWSRIKPAIWEDM4MRJLXK/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":"2026-05-26T21:01:00Z","links":{"resolver":"https://pith.science/pith/UZHWW3CWSRIKPAIWEDM4MRJLXK","bundle":"https://pith.science/pith/UZHWW3CWSRIKPAIWEDM4MRJLXK/bundle.json","state":"https://pith.science/pith/UZHWW3CWSRIKPAIWEDM4MRJLXK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UZHWW3CWSRIKPAIWEDM4MRJLXK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:UZHWW3CWSRIKPAIWEDM4MRJLXK","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":"82b2e3a9187953ce3ce4a0448fe6ba5ed9d83211c0003c701cdb94522e0329f5","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-09-07T02:48:06Z","title_canon_sha256":"a8a96c56df8a6b018fd75af335e8f5100e837f70318f8cd639116f2ea940c59f"},"schema_version":"1.0","source":{"id":"1709.02052","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.02052","created_at":"2026-05-18T00:31:11Z"},{"alias_kind":"arxiv_version","alias_value":"1709.02052v1","created_at":"2026-05-18T00:31:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.02052","created_at":"2026-05-18T00:31:11Z"},{"alias_kind":"pith_short_12","alias_value":"UZHWW3CWSRIK","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"UZHWW3CWSRIKPAIW","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"UZHWW3CW","created_at":"2026-05-18T12:31:49Z"}],"graph_snapshots":[{"event_id":"sha256:b43f0b955c4a6adf48e296234641ee1b3ce5efbffafa315c7e12d89f65118549","target":"graph","created_at":"2026-05-18T00:31:11Z","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":"Most protostars have luminosities that are fainter than expected from steady accretion over the protostellar lifetime. The solution to this problem may lie in episodic mass accretion -- prolonged periods of very low accretion punctuated by short bursts of rapid accretion. However, the timescale and amplitude for variability at the protostellar phase is almost entirely unconstrained. In \"A JCMT/SCUBA-2 Transient Survey of Protostars in Nearby Star Forming Regions\", we are monitoring monthly with SCUBA-2 the sub-mm emission in eight fields within nearby (<500 pc) star forming regions to measure ","authors_text":"Aleks Scholz, Andy Pon, A-Ran Lyo, Archana Soam, Bhavana Lalchand, Chang Won Lee, Chin-Fei Lee, Dimitris Stamatellos, Doug Johnstone, Eduard I. Vorobiov, E'lisa M. Lee, Emily Drabek-Maunder, Eun Jung Chung, Feng Long, Geoffrey C. Bower, Graham S. Bell, Gregory J. Herczeg, Gwanjeong Kim, Harriet Parsons, Helen Kirk, Hongchi Wang, Huei-Ru Vivien Chen, Hyunju Yoo, Jaehan Bae, James Lane, Jan Forbrich, Jennifer Hatchell, Jeong-Eun Lee, Jianjun Zhou, Jonathan P. Williams, Kevin Lacaille, Kyoung Hee Kim, Lei Qian, Lynne A. Hillenbrand, Manash R. Samal, Michael M. Dunham, Miju Kang, Mi-Ryang Kim, Oscar Morata, Peter Scicluna, Ramprasad Rao, Sarah Graves, Satoko Takahashi, Scott Chapman, Shigehisa Takakuwa, Shih-Ping Lai, Shu-ichiro Inutsuka, Steve Mairs, Stewart P. S. Eyres, Sung-Ju Kang, Wen-Ping Chen, Woojin Kwon, Ya-Wen Tang, Yi-Jehng Kuan, Yiren Wang, Yuri Aikawa, Yuxin He, Zhaohuan Zhu","cross_cats":["astro-ph.GA","astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-09-07T02:48:06Z","title":"How do stars gain their mass? A JCMT/SCUBA-2 Transient Survey of Protostars in Nearby Star Forming Regions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.02052","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:de07a683388d0a24173a7653a14a646e0fe0cb97511cd7a1a9e4a2ae7363eb14","target":"record","created_at":"2026-05-18T00:31:11Z","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":"82b2e3a9187953ce3ce4a0448fe6ba5ed9d83211c0003c701cdb94522e0329f5","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-09-07T02:48:06Z","title_canon_sha256":"a8a96c56df8a6b018fd75af335e8f5100e837f70318f8cd639116f2ea940c59f"},"schema_version":"1.0","source":{"id":"1709.02052","kind":"arxiv","version":1}},"canonical_sha256":"a64f6b6c569450a7811620d9c6452bba95f75b8492b46e2e19df442aabcf8802","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a64f6b6c569450a7811620d9c6452bba95f75b8492b46e2e19df442aabcf8802","first_computed_at":"2026-05-18T00:31:11.689075Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:31:11.689075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VG5JOunv0SxyyMDu1PzOMFYSiQZuLr+72rMRV7gPp4DBO0zmYexDFBOVKKbL71Z+gFpqImmObaOuLxztCu1jAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:31:11.689858Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.02052","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de07a683388d0a24173a7653a14a646e0fe0cb97511cd7a1a9e4a2ae7363eb14","sha256:b43f0b955c4a6adf48e296234641ee1b3ce5efbffafa315c7e12d89f65118549"],"state_sha256":"585afb00f7d68c6f549e22b644817e34f2a13132a0e2b514cdb6adf3c5ea1eaa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VZYSLKSWeKwfwCTr7MKM/nbL9PpVJLEdVfiXomqPLinxAoUBUe36ASgN8xAd9XvwM+s2Fa+ebwWheUpm6hGkCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T21:01:00.155312Z","bundle_sha256":"dfbd6cefa3358dcf16101dcd85dadd873ff84d900c7cfc06a42147ef6cdfe0b1"}}