{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:NXHRSPWHIK24URJ4FBTVXU562M","short_pith_number":"pith:NXHRSPWH","canonical_record":{"source":{"id":"1509.06385","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-09-21T20:17:04Z","cross_cats_sorted":[],"title_canon_sha256":"957ec4ec97d9bba732757359b83d9d57fd223e7dac18f683071f1e1c87142d83","abstract_canon_sha256":"dc1b17caff6f29113eea7aa04a940cb41f53cf6bd8bc61e6066a5aa23c32341f"},"schema_version":"1.0"},"canonical_sha256":"6dcf193ec742b5ca453c28675bd3bed31c83184f58b7846d5d6ba53dc1999939","source":{"kind":"arxiv","id":"1509.06385","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.06385","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"arxiv_version","alias_value":"1509.06385v1","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.06385","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"pith_short_12","alias_value":"NXHRSPWHIK24","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"NXHRSPWHIK24URJ4","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"NXHRSPWH","created_at":"2026-05-18T12:29:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:NXHRSPWHIK24URJ4FBTVXU562M","target":"record","payload":{"canonical_record":{"source":{"id":"1509.06385","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-09-21T20:17:04Z","cross_cats_sorted":[],"title_canon_sha256":"957ec4ec97d9bba732757359b83d9d57fd223e7dac18f683071f1e1c87142d83","abstract_canon_sha256":"dc1b17caff6f29113eea7aa04a940cb41f53cf6bd8bc61e6066a5aa23c32341f"},"schema_version":"1.0"},"canonical_sha256":"6dcf193ec742b5ca453c28675bd3bed31c83184f58b7846d5d6ba53dc1999939","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:29:44.502406Z","signature_b64":"jRke4GbOLXwaRjGEi8PpFqjDsG5Y213P4F+RuLgYeetsyWnAUT//TiTYPzQ7JhTDlbDlwLDLyvcu6K6Dd4tbCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6dcf193ec742b5ca453c28675bd3bed31c83184f58b7846d5d6ba53dc1999939","last_reissued_at":"2026-05-18T01:29:44.501971Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:29:44.501971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.06385","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":"2026-05-18T01:29:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jb2KJHJQ11QyTTbWmHTadaS89zmyC6anrzf8U1L0ECKb4Vja+B3UvD0xBrH3GBiYFsBqbJL/J9x5QN5G+uXzBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T15:27:54.298691Z"},"content_sha256":"ad423d98ee375294e6f379a0318e25e971e133642e5e1f0b47debf917b0bd56a","schema_version":"1.0","event_id":"sha256:ad423d98ee375294e6f379a0318e25e971e133642e5e1f0b47debf917b0bd56a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:NXHRSPWHIK24URJ4FBTVXU562M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The JCMT Gould Belt Survey: A Quantitative Comparison Between SCUBA-2 Data Reduction Methods","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"C. Salji, D. Johnstone, D. Nutter, D.S. Berry, D. Ward-Thompson, H. Broekhoven-Fiene, H. Kirk, J. Buckle, J.C. Mottram, J. Di Francesco, J.E. Pineda, J. Hatchell, K. Pattle, M. Fich, M.J. Currie, M.R. Hogerheijde, S.F. Beaulieu, S. Graves, S. Mairs, the JCMT Gould Belt survey team, T. Jenness","submitted_at":"2015-09-21T20:17:04Z","abstract_excerpt":"Performing ground-based submillimetre observations is a difficult task as the measurements are subject to absorption and emission from water vapour in the Earth's atmosphere and time variation in weather and instrument stability. Removing these features and other artifacts from the data is a vital process which affects the characteristics of the recovered astronomical structure we seek to study. In this paper, we explore two data reduction methods for data taken with the Submillimetre Common-User Bolometer Array-2 (SCUBA-2) at the James Clerk Maxwell Telescope (JCMT). The JCMT Legacy Reduction"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.06385","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":"2026-05-18T01:29:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1V17/cWLkQrTz5sjfXw3AS1kwyGEcV5Y3ouaIu8hkPSlAqKQaH6og9HtCgyaJk8bFRYYHPN0sgHa89oG6moUBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T15:27:54.299041Z"},"content_sha256":"736694e2ce3df0dac53ab33bb1cef3e40164948da64052e45724c51c2de91b1e","schema_version":"1.0","event_id":"sha256:736694e2ce3df0dac53ab33bb1cef3e40164948da64052e45724c51c2de91b1e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NXHRSPWHIK24URJ4FBTVXU562M/bundle.json","state_url":"https://pith.science/pith/NXHRSPWHIK24URJ4FBTVXU562M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NXHRSPWHIK24URJ4FBTVXU562M/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":"2026-06-05T15:27:54Z","links":{"resolver":"https://pith.science/pith/NXHRSPWHIK24URJ4FBTVXU562M","bundle":"https://pith.science/pith/NXHRSPWHIK24URJ4FBTVXU562M/bundle.json","state":"https://pith.science/pith/NXHRSPWHIK24URJ4FBTVXU562M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NXHRSPWHIK24URJ4FBTVXU562M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:NXHRSPWHIK24URJ4FBTVXU562M","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":"dc1b17caff6f29113eea7aa04a940cb41f53cf6bd8bc61e6066a5aa23c32341f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-09-21T20:17:04Z","title_canon_sha256":"957ec4ec97d9bba732757359b83d9d57fd223e7dac18f683071f1e1c87142d83"},"schema_version":"1.0","source":{"id":"1509.06385","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.06385","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"arxiv_version","alias_value":"1509.06385v1","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.06385","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"pith_short_12","alias_value":"NXHRSPWHIK24","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"NXHRSPWHIK24URJ4","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"NXHRSPWH","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:736694e2ce3df0dac53ab33bb1cef3e40164948da64052e45724c51c2de91b1e","target":"graph","created_at":"2026-05-18T01:29:44Z","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":"Performing ground-based submillimetre observations is a difficult task as the measurements are subject to absorption and emission from water vapour in the Earth's atmosphere and time variation in weather and instrument stability. Removing these features and other artifacts from the data is a vital process which affects the characteristics of the recovered astronomical structure we seek to study. In this paper, we explore two data reduction methods for data taken with the Submillimetre Common-User Bolometer Array-2 (SCUBA-2) at the James Clerk Maxwell Telescope (JCMT). The JCMT Legacy Reduction","authors_text":"C. Salji, D. Johnstone, D. Nutter, D.S. Berry, D. Ward-Thompson, H. Broekhoven-Fiene, H. Kirk, J. Buckle, J.C. Mottram, J. Di Francesco, J.E. Pineda, J. Hatchell, K. Pattle, M. Fich, M.J. Currie, M.R. Hogerheijde, S.F. Beaulieu, S. Graves, S. Mairs, the JCMT Gould Belt survey team, T. Jenness","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-09-21T20:17:04Z","title":"The JCMT Gould Belt Survey: A Quantitative Comparison Between SCUBA-2 Data Reduction Methods"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.06385","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:ad423d98ee375294e6f379a0318e25e971e133642e5e1f0b47debf917b0bd56a","target":"record","created_at":"2026-05-18T01:29:44Z","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":"dc1b17caff6f29113eea7aa04a940cb41f53cf6bd8bc61e6066a5aa23c32341f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-09-21T20:17:04Z","title_canon_sha256":"957ec4ec97d9bba732757359b83d9d57fd223e7dac18f683071f1e1c87142d83"},"schema_version":"1.0","source":{"id":"1509.06385","kind":"arxiv","version":1}},"canonical_sha256":"6dcf193ec742b5ca453c28675bd3bed31c83184f58b7846d5d6ba53dc1999939","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6dcf193ec742b5ca453c28675bd3bed31c83184f58b7846d5d6ba53dc1999939","first_computed_at":"2026-05-18T01:29:44.501971Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:29:44.501971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jRke4GbOLXwaRjGEi8PpFqjDsG5Y213P4F+RuLgYeetsyWnAUT//TiTYPzQ7JhTDlbDlwLDLyvcu6K6Dd4tbCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:29:44.502406Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.06385","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad423d98ee375294e6f379a0318e25e971e133642e5e1f0b47debf917b0bd56a","sha256:736694e2ce3df0dac53ab33bb1cef3e40164948da64052e45724c51c2de91b1e"],"state_sha256":"c8879e356d5cf76419df9e39211dd44b502ee040f4bfafa820d6abef8862e346"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UZ1LNlQ5dizSHUP2NtqB5ZIKGzjn5eBBg3pUeV6bHXT+s//p/XPFQ9LFggAxqfLcnb1x6HJiCh1Z4aMYLyaQAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T15:27:54.300956Z","bundle_sha256":"df196b54b8d73a6082fd43d40e874ded22412920178ed982f60543171ed4b539"}}