{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:7MYVSA7ZMFZSLDSDVR5LO4KFGB","short_pith_number":"pith:7MYVSA7Z","canonical_record":{"source":{"id":"2107.10750","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-07-22T15:35:56Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"6931f8597d29091bbff96eac78f2c9f145fc547bc2a6b019f009e9881519dbbf","abstract_canon_sha256":"068c71974c0ab4ba6cb0030a641f0e3edc2a6ecd044128080995ed2cadad9e32"},"schema_version":"1.0"},"canonical_sha256":"fb315903f96173258e43ac7ab7714530753e6a5e49453475a0913265fe7490ba","source":{"kind":"arxiv","id":"2107.10750","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.10750","created_at":"2026-07-05T03:26:01Z"},{"alias_kind":"arxiv_version","alias_value":"2107.10750v1","created_at":"2026-07-05T03:26:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.10750","created_at":"2026-07-05T03:26:01Z"},{"alias_kind":"pith_short_12","alias_value":"7MYVSA7ZMFZS","created_at":"2026-07-05T03:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"7MYVSA7ZMFZSLDSD","created_at":"2026-07-05T03:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"7MYVSA7Z","created_at":"2026-07-05T03:26:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:7MYVSA7ZMFZSLDSDVR5LO4KFGB","target":"record","payload":{"canonical_record":{"source":{"id":"2107.10750","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-07-22T15:35:56Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"6931f8597d29091bbff96eac78f2c9f145fc547bc2a6b019f009e9881519dbbf","abstract_canon_sha256":"068c71974c0ab4ba6cb0030a641f0e3edc2a6ecd044128080995ed2cadad9e32"},"schema_version":"1.0"},"canonical_sha256":"fb315903f96173258e43ac7ab7714530753e6a5e49453475a0913265fe7490ba","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:26:01.759864Z","signature_b64":"7jy2FzmjLBxjCn9oP50ygQ+K2gJduixYl8wXnPSoZktKQTAYI9ol46SS9dCzJ9L37RN0JjG0mB/TTMLuXWi0Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb315903f96173258e43ac7ab7714530753e6a5e49453475a0913265fe7490ba","last_reissued_at":"2026-07-05T03:26:01.759299Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:26:01.759299Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2107.10750","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":"2026-07-05T03:26:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LtRexjoqpZrZuloXsRBdvCHvbriadk5md9D5chcGrQrEbDR9K8FyXDLU8+PJQ6AT3kVK1HpFZe6LRIDlFZIcAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T23:09:55.014096Z"},"content_sha256":"230b92ec1bb15e6aea956c2b8ed1825ac2fe3d3fc963d5fa3fbec60cfc3b5648","schema_version":"1.0","event_id":"sha256:230b92ec1bb15e6aea956c2b8ed1825ac2fe3d3fc963d5fa3fbec60cfc3b5648"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:7MYVSA7ZMFZSLDSDVR5LO4KFGB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The JCMT Transient Survey: Four Year Summary of Monitoring the Submillimeter Variability of Protostars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Aashish Gupta, Aleks Scholz, Andy Pon, Bhavana Lalchand, Carlos Contreras-Pe\\~na, Chin-Fei Lee, Colton Broughton, Daniel Harsono, Dimitris Stamatellos, Dipen Sahu, Doug Johnstone, Fujun Du, Geoffrey C. Bower, Gerald H. Moriarty-Schieven, Geumsook Park, Giseon Baek, Graham S. Bell, Gregory Herczeg, Helen Kirk, Hsien Shang, Huei-Ru Vivien Chen, Hyunju Yoo, Jaehan Bae, James M. M. Lane, Jan Forbrich, Jennifer Hatchell, Jeong-Eun Lee, Logan Francis, Miju Kang, Oscar Morata, Paula Stella Teixeira, Samuel Pearson, Scott Chapman, Sheng-Yuan Liu, Shih-Ping Lai, Shih-Yun Tang, Shu-ichiro Inutsuka, Somnath Dutta, Spencer Plovie, Steve Mairs, Tanvi Sharma, Tie Liu, Tim Naylor, Tyler L. Bourke, Wen Ping Chen, Woojin Kwon, Yao-Te Wang, Yi-Jehng Kuan, Yong-Hee Lee, Yuri Aikawa, Zhen Guo, Ziyan Xu","submitted_at":"2021-07-22T15:35:56Z","abstract_excerpt":"We present the four-year survey results of monthly submillimeter monitoring of eight nearby ($< 500 $pc) star-forming regions by the JCMT Transient Survey. We apply the Lomb-Scargle Periodogram technique to search for and characterize variability on 295 submillimeter peaks brighter than 0.14 Jy beam$^{-1}$, including 22 disk sources (Class II), 83 protostars (Class 0/I), and 190 starless sources. We uncover 18 secular variables, all of them protostars. No single-epoch burst or drop events and no inherently stochastic sources are observed. We classify the secular variables by their timescales i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.10750","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2107.10750/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T03:26:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1gAKV7LGcw39J44c76PE9yvdNa+9JFxTbUx8qsvS8hWlkLyiToLyALO+/ST6+hy3SYGOlGvJmtzQ0G77NiX4CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T23:09:55.014506Z"},"content_sha256":"2d249dfd25036fde686640a571ae754207cc899bcc8dfb0026ba9e378202459d","schema_version":"1.0","event_id":"sha256:2d249dfd25036fde686640a571ae754207cc899bcc8dfb0026ba9e378202459d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7MYVSA7ZMFZSLDSDVR5LO4KFGB/bundle.json","state_url":"https://pith.science/pith/7MYVSA7ZMFZSLDSDVR5LO4KFGB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7MYVSA7ZMFZSLDSDVR5LO4KFGB/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":"2026-07-11T23:09:55Z","links":{"resolver":"https://pith.science/pith/7MYVSA7ZMFZSLDSDVR5LO4KFGB","bundle":"https://pith.science/pith/7MYVSA7ZMFZSLDSDVR5LO4KFGB/bundle.json","state":"https://pith.science/pith/7MYVSA7ZMFZSLDSDVR5LO4KFGB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7MYVSA7ZMFZSLDSDVR5LO4KFGB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:7MYVSA7ZMFZSLDSDVR5LO4KFGB","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":"068c71974c0ab4ba6cb0030a641f0e3edc2a6ecd044128080995ed2cadad9e32","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-07-22T15:35:56Z","title_canon_sha256":"6931f8597d29091bbff96eac78f2c9f145fc547bc2a6b019f009e9881519dbbf"},"schema_version":"1.0","source":{"id":"2107.10750","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.10750","created_at":"2026-07-05T03:26:01Z"},{"alias_kind":"arxiv_version","alias_value":"2107.10750v1","created_at":"2026-07-05T03:26:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.10750","created_at":"2026-07-05T03:26:01Z"},{"alias_kind":"pith_short_12","alias_value":"7MYVSA7ZMFZS","created_at":"2026-07-05T03:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"7MYVSA7ZMFZSLDSD","created_at":"2026-07-05T03:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"7MYVSA7Z","created_at":"2026-07-05T03:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:2d249dfd25036fde686640a571ae754207cc899bcc8dfb0026ba9e378202459d","target":"graph","created_at":"2026-07-05T03:26:01Z","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/2107.10750/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the four-year survey results of monthly submillimeter monitoring of eight nearby ($< 500 $pc) star-forming regions by the JCMT Transient Survey. We apply the Lomb-Scargle Periodogram technique to search for and characterize variability on 295 submillimeter peaks brighter than 0.14 Jy beam$^{-1}$, including 22 disk sources (Class II), 83 protostars (Class 0/I), and 190 starless sources. We uncover 18 secular variables, all of them protostars. No single-epoch burst or drop events and no inherently stochastic sources are observed. We classify the secular variables by their timescales i","authors_text":"Aashish Gupta, Aleks Scholz, Andy Pon, Bhavana Lalchand, Carlos Contreras-Pe\\~na, Chin-Fei Lee, Colton Broughton, Daniel Harsono, Dimitris Stamatellos, Dipen Sahu, Doug Johnstone, Fujun Du, Geoffrey C. Bower, Gerald H. Moriarty-Schieven, Geumsook Park, Giseon Baek, Graham S. Bell, Gregory Herczeg, Helen Kirk, Hsien Shang, Huei-Ru Vivien Chen, Hyunju Yoo, Jaehan Bae, James M. M. Lane, Jan Forbrich, Jennifer Hatchell, Jeong-Eun Lee, Logan Francis, Miju Kang, Oscar Morata, Paula Stella Teixeira, Samuel Pearson, Scott Chapman, Sheng-Yuan Liu, Shih-Ping Lai, Shih-Yun Tang, Shu-ichiro Inutsuka, Somnath Dutta, Spencer Plovie, Steve Mairs, Tanvi Sharma, Tie Liu, Tim Naylor, Tyler L. Bourke, Wen Ping Chen, Woojin Kwon, Yao-Te Wang, Yi-Jehng Kuan, Yong-Hee Lee, Yuri Aikawa, Zhen Guo, Ziyan Xu","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-07-22T15:35:56Z","title":"The JCMT Transient Survey: Four Year Summary of Monitoring the Submillimeter Variability of Protostars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.10750","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":"sha256:230b92ec1bb15e6aea956c2b8ed1825ac2fe3d3fc963d5fa3fbec60cfc3b5648","target":"record","created_at":"2026-07-05T03:26:01Z","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":"068c71974c0ab4ba6cb0030a641f0e3edc2a6ecd044128080995ed2cadad9e32","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-07-22T15:35:56Z","title_canon_sha256":"6931f8597d29091bbff96eac78f2c9f145fc547bc2a6b019f009e9881519dbbf"},"schema_version":"1.0","source":{"id":"2107.10750","kind":"arxiv","version":1}},"canonical_sha256":"fb315903f96173258e43ac7ab7714530753e6a5e49453475a0913265fe7490ba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fb315903f96173258e43ac7ab7714530753e6a5e49453475a0913265fe7490ba","first_computed_at":"2026-07-05T03:26:01.759299Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:26:01.759299Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7jy2FzmjLBxjCn9oP50ygQ+K2gJduixYl8wXnPSoZktKQTAYI9ol46SS9dCzJ9L37RN0JjG0mB/TTMLuXWi0Cg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:26:01.759864Z","signed_message":"canonical_sha256_bytes"},"source_id":"2107.10750","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:230b92ec1bb15e6aea956c2b8ed1825ac2fe3d3fc963d5fa3fbec60cfc3b5648","sha256:2d249dfd25036fde686640a571ae754207cc899bcc8dfb0026ba9e378202459d"],"state_sha256":"9b251e280d5f37e16ef8c9d727b14d96375b6e22281639cd36f29c9a6c51f31e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6AuqybcYI2Q+tYa3Yz/Zfb21Uf/jWXfmBSRe2rR3dY6X0mS0HiAcB+VmB6jZEvrbIyM7UL1yC+red7XAUAyNDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-11T23:09:55.017608Z","bundle_sha256":"bdf3ab6737a614645dd45a283c8c7f43d2107174b8549448be00de5d57a01b9f"}}