{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:S57FVSJUNL4A5UUCBING4GXAVA","short_pith_number":"pith:S57FVSJU","canonical_record":{"source":{"id":"0903.1369","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-03-07T21:14:16Z","cross_cats_sorted":[],"title_canon_sha256":"34aea7f637e0f66ae6bf77e5426fa9bbca6c0e11fa1e8018253b61d3cf610e3a","abstract_canon_sha256":"ab1683982d646896c351166e3cfc3c221732d79886b536f1175c11c6f0bde769"},"schema_version":"1.0"},"canonical_sha256":"977e5ac9346af80ed2820a1a6e1ae0a83c106ef4322d081f8575d3164b339e87","source":{"kind":"arxiv","id":"0903.1369","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0903.1369","created_at":"2026-05-18T02:14:36Z"},{"alias_kind":"arxiv_version","alias_value":"0903.1369v2","created_at":"2026-05-18T02:14:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.1369","created_at":"2026-05-18T02:14:36Z"},{"alias_kind":"pith_short_12","alias_value":"S57FVSJUNL4A","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"S57FVSJUNL4A5UUC","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"S57FVSJU","created_at":"2026-05-18T12:26:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:S57FVSJUNL4A5UUCBING4GXAVA","target":"record","payload":{"canonical_record":{"source":{"id":"0903.1369","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-03-07T21:14:16Z","cross_cats_sorted":[],"title_canon_sha256":"34aea7f637e0f66ae6bf77e5426fa9bbca6c0e11fa1e8018253b61d3cf610e3a","abstract_canon_sha256":"ab1683982d646896c351166e3cfc3c221732d79886b536f1175c11c6f0bde769"},"schema_version":"1.0"},"canonical_sha256":"977e5ac9346af80ed2820a1a6e1ae0a83c106ef4322d081f8575d3164b339e87","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:14:36.666579Z","signature_b64":"7TICQx+DV/9NkK3C+BAFvGMbZfzRmkh0myHaxO1gUGIWamDehdlavHIx3uDIUJfDQvoxVrbHp1HCkRyvRB+1AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"977e5ac9346af80ed2820a1a6e1ae0a83c106ef4322d081f8575d3164b339e87","last_reissued_at":"2026-05-18T02:14:36.665966Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:14:36.665966Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0903.1369","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:14:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LaN+hyIimt77HrJTLG3jXl5IXZ17TdGKihJqRKlQnNCs7RiHhzogB93mlzIkfuCsewuuVytQVqtqOhoEiLxPCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:04:07.470460Z"},"content_sha256":"0a916a9927a7085fa7fd7f29110df221e89f0d2790847df33521337936339b97","schema_version":"1.0","event_id":"sha256:0a916a9927a7085fa7fd7f29110df221e89f0d2790847df33521337936339b97"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:S57FVSJUNL4A5UUCBING4GXAVA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ATLASGAL - The APEX Telescope Large Area Survey of the Galaxy at 870 microns","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Kovacs, A. Weiss, A. Zavagno, B. Lefloch, C.M. Walmsley, C. Risacher, D. Mardones, D. Russeil, E. Kreysa, F. Herpin, F. Motte, F. Schuller, F. Wyrowski, G. Garay, G. Siringo, H. Beuther, H. Linz, K.M. Menten, L.-A. Nyman, L. Bronfman, L. Deharveng, L. Testi, M. Wienen, N. Schneider, P. Schilke, R. Cesaroni, S. Bontemps, S. Molinari, T. Henning, T. Troost, T. Vasyunina, V. Minier, V. Reveret, Y. Contreras","submitted_at":"2009-03-07T21:14:16Z","abstract_excerpt":"(Abridged) Studying continuum emission from interstellar dust is essential to locating and characterizing the highest density regions in the interstellar medium. In particular, the early stages of massive star formation remain poorly understood. Our goal is to produce a large-scale, systematic database of massive pre- and proto-stellar clumps in the Galaxy, to understand how and under what conditions star formation takes place. A well characterized sample of star-forming sites will deliver an evolutionary sequence and a mass function of high-mass, star-forming clumps. This systematic survey at"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.1369","kind":"arxiv","version":2},"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":"2026-05-18T02:14:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"su3Rcxjm4XZgs+Cv4/jwnQZHEwDD9qNRVMKOGA6Ky6QDtK0N7fZEXFMvaBnlP4L2zEx87wKubFT73GGcyg8lCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:04:07.471214Z"},"content_sha256":"f4722f3a7aa6717c4e0981bda74a08b182ff3072d3d321c8e908632dc36c0e79","schema_version":"1.0","event_id":"sha256:f4722f3a7aa6717c4e0981bda74a08b182ff3072d3d321c8e908632dc36c0e79"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S57FVSJUNL4A5UUCBING4GXAVA/bundle.json","state_url":"https://pith.science/pith/S57FVSJUNL4A5UUCBING4GXAVA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S57FVSJUNL4A5UUCBING4GXAVA/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":"2026-05-25T22:04:07Z","links":{"resolver":"https://pith.science/pith/S57FVSJUNL4A5UUCBING4GXAVA","bundle":"https://pith.science/pith/S57FVSJUNL4A5UUCBING4GXAVA/bundle.json","state":"https://pith.science/pith/S57FVSJUNL4A5UUCBING4GXAVA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S57FVSJUNL4A5UUCBING4GXAVA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:S57FVSJUNL4A5UUCBING4GXAVA","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":"ab1683982d646896c351166e3cfc3c221732d79886b536f1175c11c6f0bde769","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-03-07T21:14:16Z","title_canon_sha256":"34aea7f637e0f66ae6bf77e5426fa9bbca6c0e11fa1e8018253b61d3cf610e3a"},"schema_version":"1.0","source":{"id":"0903.1369","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0903.1369","created_at":"2026-05-18T02:14:36Z"},{"alias_kind":"arxiv_version","alias_value":"0903.1369v2","created_at":"2026-05-18T02:14:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.1369","created_at":"2026-05-18T02:14:36Z"},{"alias_kind":"pith_short_12","alias_value":"S57FVSJUNL4A","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"S57FVSJUNL4A5UUC","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"S57FVSJU","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:f4722f3a7aa6717c4e0981bda74a08b182ff3072d3d321c8e908632dc36c0e79","target":"graph","created_at":"2026-05-18T02:14:36Z","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":"(Abridged) Studying continuum emission from interstellar dust is essential to locating and characterizing the highest density regions in the interstellar medium. In particular, the early stages of massive star formation remain poorly understood. Our goal is to produce a large-scale, systematic database of massive pre- and proto-stellar clumps in the Galaxy, to understand how and under what conditions star formation takes place. A well characterized sample of star-forming sites will deliver an evolutionary sequence and a mass function of high-mass, star-forming clumps. This systematic survey at","authors_text":"A. Kovacs, A. Weiss, A. Zavagno, B. Lefloch, C.M. Walmsley, C. Risacher, D. Mardones, D. Russeil, E. Kreysa, F. Herpin, F. Motte, F. Schuller, F. Wyrowski, G. Garay, G. Siringo, H. Beuther, H. Linz, K.M. Menten, L.-A. Nyman, L. Bronfman, L. Deharveng, L. Testi, M. Wienen, N. Schneider, P. Schilke, R. Cesaroni, S. Bontemps, S. Molinari, T. Henning, T. Troost, T. Vasyunina, V. Minier, V. Reveret, Y. Contreras","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-03-07T21:14:16Z","title":"ATLASGAL - The APEX Telescope Large Area Survey of the Galaxy at 870 microns"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.1369","kind":"arxiv","version":2},"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":"sha256:0a916a9927a7085fa7fd7f29110df221e89f0d2790847df33521337936339b97","target":"record","created_at":"2026-05-18T02:14:36Z","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":"ab1683982d646896c351166e3cfc3c221732d79886b536f1175c11c6f0bde769","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-03-07T21:14:16Z","title_canon_sha256":"34aea7f637e0f66ae6bf77e5426fa9bbca6c0e11fa1e8018253b61d3cf610e3a"},"schema_version":"1.0","source":{"id":"0903.1369","kind":"arxiv","version":2}},"canonical_sha256":"977e5ac9346af80ed2820a1a6e1ae0a83c106ef4322d081f8575d3164b339e87","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"977e5ac9346af80ed2820a1a6e1ae0a83c106ef4322d081f8575d3164b339e87","first_computed_at":"2026-05-18T02:14:36.665966Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:14:36.665966Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7TICQx+DV/9NkK3C+BAFvGMbZfzRmkh0myHaxO1gUGIWamDehdlavHIx3uDIUJfDQvoxVrbHp1HCkRyvRB+1AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:14:36.666579Z","signed_message":"canonical_sha256_bytes"},"source_id":"0903.1369","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0a916a9927a7085fa7fd7f29110df221e89f0d2790847df33521337936339b97","sha256:f4722f3a7aa6717c4e0981bda74a08b182ff3072d3d321c8e908632dc36c0e79"],"state_sha256":"e74d4ce14671a319716b831dd1e01fe094a74c5a45d7388236bf19fcb101825e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"56v0MarEUjuzmhY6mogEiAtjBMbX/QULWuCA0dsMCdopspmANcWARDF2aVAU/sp9amEyCD8gcUW/qpZn7kFzCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T22:04:07.475182Z","bundle_sha256":"e4273604d021904c9b2b12e0ff91108140298a9df1cbbcedb8dbb12176e74284"}}