{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:NVJPGSL2YWOLHV7UVQIQZUGCO3","short_pith_number":"pith:NVJPGSL2","canonical_record":{"source":{"id":"astro-ph/0510422","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-10-14T09:44:03Z","cross_cats_sorted":[],"title_canon_sha256":"d876bc4fcbc1482596a140e0407c2d2f254a5d89f1593e04f0bf08512bb65cac","abstract_canon_sha256":"6c6e6556b221cea1d392b2bc63a41f88ae9122e07dab53591d50cec9da7ee5d5"},"schema_version":"1.0"},"canonical_sha256":"6d52f3497ac59cb3d7f4ac110cd0c276c0190c13f341dd2471c6835298912fe8","source":{"kind":"arxiv","id":"astro-ph/0510422","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0510422","created_at":"2026-05-18T04:25:39Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0510422v1","created_at":"2026-05-18T04:25:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0510422","created_at":"2026-05-18T04:25:39Z"},{"alias_kind":"pith_short_12","alias_value":"NVJPGSL2YWOL","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"NVJPGSL2YWOLHV7U","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"NVJPGSL2","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:NVJPGSL2YWOLHV7UVQIQZUGCO3","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0510422","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-10-14T09:44:03Z","cross_cats_sorted":[],"title_canon_sha256":"d876bc4fcbc1482596a140e0407c2d2f254a5d89f1593e04f0bf08512bb65cac","abstract_canon_sha256":"6c6e6556b221cea1d392b2bc63a41f88ae9122e07dab53591d50cec9da7ee5d5"},"schema_version":"1.0"},"canonical_sha256":"6d52f3497ac59cb3d7f4ac110cd0c276c0190c13f341dd2471c6835298912fe8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:25:39.655219Z","signature_b64":"2N/+62pcRfRSVPwgv8SZeal3P3IdlBtOZracq5BUMek5qWpliU8e04K8BGxPNldD3FxM12wkS6aQk4x01+X0DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6d52f3497ac59cb3d7f4ac110cd0c276c0190c13f341dd2471c6835298912fe8","last_reissued_at":"2026-05-18T04:25:39.654810Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:25:39.654810Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0510422","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":"2026-05-18T04:25:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ky3W/IRYZyc+RasQ2jSTFVW4LzA3XeSnz5TtywRmD0bWmG6rkvBIFhchSLAr+OwMdR3/ucWO6ChTD1PBNh7MBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T02:01:14.151867Z"},"content_sha256":"af26d181d36c6eab3cdbdf0377513d207914ba8543c594a6d0dd4bccb39ce4c1","schema_version":"1.0","event_id":"sha256:af26d181d36c6eab3cdbdf0377513d207914ba8543c594a6d0dd4bccb39ce4c1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:NVJPGSL2YWOLHV7UVQIQZUGCO3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Search for massive protostar candidates in the southern hemisphere: II. Dust continuum emission","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Francesco Fontani, Jan Brand, Leonardo Testi, Maria T. Beltran, Riccardo Cesaroni, Sergio Molinari, Stefano Pezzuto","submitted_at":"2005-10-14T09:44:03Z","abstract_excerpt":"In an ongoing effort to identify and study high-mass protostellar candidates we have observed in various tracers a sample of 235 sources selected from the IRAS Point Source Catalog, mostly with dec < -30 deg, with the SEST antenna at millimeter wavelengths. The sample contains 142 Low sources and 93 High, which are believed to be in different evolutionary stages. Both sub-samples have been studied in detail by comparing their physical properties and morphologies. Massive dust clumps have been detected in all but 8 regions, with usually more than one clump per region. The dust emission shows a "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0510422","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":"2026-05-18T04:25:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5FMxkatnTxLg8dnQARndRsN7VIAAkypq3AfzSkVG+DHeQOY7w936Gw0VE5brVJC9jzHQVjzyZt8qg/Ehw5oiBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T02:01:14.152407Z"},"content_sha256":"bc32a47a73db1cb800132bfec07906a0a61d00787a7129ef6c28a31c035bf8c7","schema_version":"1.0","event_id":"sha256:bc32a47a73db1cb800132bfec07906a0a61d00787a7129ef6c28a31c035bf8c7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NVJPGSL2YWOLHV7UVQIQZUGCO3/bundle.json","state_url":"https://pith.science/pith/NVJPGSL2YWOLHV7UVQIQZUGCO3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NVJPGSL2YWOLHV7UVQIQZUGCO3/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":"2026-06-05T02:01:14Z","links":{"resolver":"https://pith.science/pith/NVJPGSL2YWOLHV7UVQIQZUGCO3","bundle":"https://pith.science/pith/NVJPGSL2YWOLHV7UVQIQZUGCO3/bundle.json","state":"https://pith.science/pith/NVJPGSL2YWOLHV7UVQIQZUGCO3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NVJPGSL2YWOLHV7UVQIQZUGCO3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:NVJPGSL2YWOLHV7UVQIQZUGCO3","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":"6c6e6556b221cea1d392b2bc63a41f88ae9122e07dab53591d50cec9da7ee5d5","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-10-14T09:44:03Z","title_canon_sha256":"d876bc4fcbc1482596a140e0407c2d2f254a5d89f1593e04f0bf08512bb65cac"},"schema_version":"1.0","source":{"id":"astro-ph/0510422","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0510422","created_at":"2026-05-18T04:25:39Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0510422v1","created_at":"2026-05-18T04:25:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0510422","created_at":"2026-05-18T04:25:39Z"},{"alias_kind":"pith_short_12","alias_value":"NVJPGSL2YWOL","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"NVJPGSL2YWOLHV7U","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"NVJPGSL2","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:bc32a47a73db1cb800132bfec07906a0a61d00787a7129ef6c28a31c035bf8c7","target":"graph","created_at":"2026-05-18T04:25:39Z","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":"In an ongoing effort to identify and study high-mass protostellar candidates we have observed in various tracers a sample of 235 sources selected from the IRAS Point Source Catalog, mostly with dec < -30 deg, with the SEST antenna at millimeter wavelengths. The sample contains 142 Low sources and 93 High, which are believed to be in different evolutionary stages. Both sub-samples have been studied in detail by comparing their physical properties and morphologies. Massive dust clumps have been detected in all but 8 regions, with usually more than one clump per region. The dust emission shows a ","authors_text":"Francesco Fontani, Jan Brand, Leonardo Testi, Maria T. Beltran, Riccardo Cesaroni, Sergio Molinari, Stefano Pezzuto","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-10-14T09:44:03Z","title":"Search for massive protostar candidates in the southern hemisphere: II. Dust continuum emission"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0510422","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:af26d181d36c6eab3cdbdf0377513d207914ba8543c594a6d0dd4bccb39ce4c1","target":"record","created_at":"2026-05-18T04:25:39Z","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":"6c6e6556b221cea1d392b2bc63a41f88ae9122e07dab53591d50cec9da7ee5d5","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-10-14T09:44:03Z","title_canon_sha256":"d876bc4fcbc1482596a140e0407c2d2f254a5d89f1593e04f0bf08512bb65cac"},"schema_version":"1.0","source":{"id":"astro-ph/0510422","kind":"arxiv","version":1}},"canonical_sha256":"6d52f3497ac59cb3d7f4ac110cd0c276c0190c13f341dd2471c6835298912fe8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6d52f3497ac59cb3d7f4ac110cd0c276c0190c13f341dd2471c6835298912fe8","first_computed_at":"2026-05-18T04:25:39.654810Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:25:39.654810Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2N/+62pcRfRSVPwgv8SZeal3P3IdlBtOZracq5BUMek5qWpliU8e04K8BGxPNldD3FxM12wkS6aQk4x01+X0DA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:25:39.655219Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0510422","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:af26d181d36c6eab3cdbdf0377513d207914ba8543c594a6d0dd4bccb39ce4c1","sha256:bc32a47a73db1cb800132bfec07906a0a61d00787a7129ef6c28a31c035bf8c7"],"state_sha256":"089bbc262f02934cf9331a74377f2293d34cdaf4ac929b61a3850425d9466c64"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"igIfk8le3vWmnBPeW0qpNbcJWjzyNWCjYUiYNpCabLxziVTJ6XIE3i43yW1rT9Ra5pUXmoaXdhxMkXsW+GxbCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T02:01:14.155158Z","bundle_sha256":"77ca9289bf3f184248df2764d0c489a41d2d8e7afab826eac869613a59a13dbe"}}