{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:KLH2WWOAOMYRY4ZWGSQRXCKIYK","short_pith_number":"pith:KLH2WWOA","canonical_record":{"source":{"id":"0812.1789","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-09T20:41:02Z","cross_cats_sorted":[],"title_canon_sha256":"7a774f79ba5a6cdb500eb2d08aff1acac08aa75bda7852b47b6cf106178a8532","abstract_canon_sha256":"d41b2b1f9f7ce157a0dce696be558b3b0c88396d36419eb323cbb03def04fdee"},"schema_version":"1.0"},"canonical_sha256":"52cfab59c073311c733634a11b8948c296a9704b54038780755cceb91cf24fdc","source":{"kind":"arxiv","id":"0812.1789","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.1789","created_at":"2026-05-18T02:15:11Z"},{"alias_kind":"arxiv_version","alias_value":"0812.1789v3","created_at":"2026-05-18T02:15:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.1789","created_at":"2026-05-18T02:15:11Z"},{"alias_kind":"pith_short_12","alias_value":"KLH2WWOAOMYR","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"KLH2WWOAOMYRY4ZW","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"KLH2WWOA","created_at":"2026-05-18T12:25:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:KLH2WWOAOMYRY4ZWGSQRXCKIYK","target":"record","payload":{"canonical_record":{"source":{"id":"0812.1789","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-09T20:41:02Z","cross_cats_sorted":[],"title_canon_sha256":"7a774f79ba5a6cdb500eb2d08aff1acac08aa75bda7852b47b6cf106178a8532","abstract_canon_sha256":"d41b2b1f9f7ce157a0dce696be558b3b0c88396d36419eb323cbb03def04fdee"},"schema_version":"1.0"},"canonical_sha256":"52cfab59c073311c733634a11b8948c296a9704b54038780755cceb91cf24fdc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:15:11.140570Z","signature_b64":"sDVqDborWpN+xaopJHXnDydHPa1RSNyF+lf0PSpnm3rxryTxR1+4ncEftXejA6ZGTS22Ce4Oen0Epekc6bkKBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"52cfab59c073311c733634a11b8948c296a9704b54038780755cceb91cf24fdc","last_reissued_at":"2026-05-18T02:15:11.139932Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:15:11.139932Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0812.1789","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:15:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NHJae4Uvb6zYNb7pfGg2Ha5c/Lcc6fy7/tOLJ1qzOwsnzqn73kC3XcRSi0UfexuocEYc78vqvjti1wTDf1HDBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:51:55.402032Z"},"content_sha256":"ccd3bd2163a6ae74809dc53e879108817a2698a0830b07ecc8455f703b977746","schema_version":"1.0","event_id":"sha256:ccd3bd2163a6ae74809dc53e879108817a2698a0830b07ecc8455f703b977746"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:KLH2WWOAOMYRY4ZWGSQRXCKIYK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of Large-Scale Gravitational Infall in a Massive Protostellar Cluster","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Andrew M. Hopkins, Naoko Furukawa, Peter J. Barnes, Stuart D. Ryder, Yasuo Fukui, Yoshinori Yonekura, Yosuke Miyamoto","submitted_at":"2008-12-09T20:41:02Z","abstract_excerpt":"We report Mopra (ATNF), Anglo-Australian Telescope, and Atacama Submillimeter Telescope Experiment observations of a molecular clump in Carina, BYF73 = G286.21+0.17, which give evidence of large-scale gravitational infall in the dense gas. From the millimetre and far-infrared data, the clump has mass ~ 2 x 10^4 Msun, luminosity ~ 2-3 x 10^4 Lsun, and diameter ~ 0.9 pc. From radiative transfer modelling, we derive a mass infall rate ~ 3.4 x 10^-2 Msun yr-1. If confirmed, this rate for gravitational infall in a molecular core or clump may be the highest yet seen. The near-infrared K-band imaging"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.1789","kind":"arxiv","version":3},"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":"2026-05-18T02:15:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8vCXzYxkA/kbsPv+dzKiD5SRsctMcYcs+Eo/HgXidwa3XGj0DkcuRjFpkwxZeu+nlM4qDixLYAyWObTN5/V1Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:51:55.402751Z"},"content_sha256":"1f8abe3163db3ae3fc233877cf88ced3d3dc63bb427488f1ff76ace598fd29f3","schema_version":"1.0","event_id":"sha256:1f8abe3163db3ae3fc233877cf88ced3d3dc63bb427488f1ff76ace598fd29f3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KLH2WWOAOMYRY4ZWGSQRXCKIYK/bundle.json","state_url":"https://pith.science/pith/KLH2WWOAOMYRY4ZWGSQRXCKIYK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KLH2WWOAOMYRY4ZWGSQRXCKIYK/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":"2026-06-01T05:51:55Z","links":{"resolver":"https://pith.science/pith/KLH2WWOAOMYRY4ZWGSQRXCKIYK","bundle":"https://pith.science/pith/KLH2WWOAOMYRY4ZWGSQRXCKIYK/bundle.json","state":"https://pith.science/pith/KLH2WWOAOMYRY4ZWGSQRXCKIYK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KLH2WWOAOMYRY4ZWGSQRXCKIYK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:KLH2WWOAOMYRY4ZWGSQRXCKIYK","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":"d41b2b1f9f7ce157a0dce696be558b3b0c88396d36419eb323cbb03def04fdee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-09T20:41:02Z","title_canon_sha256":"7a774f79ba5a6cdb500eb2d08aff1acac08aa75bda7852b47b6cf106178a8532"},"schema_version":"1.0","source":{"id":"0812.1789","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.1789","created_at":"2026-05-18T02:15:11Z"},{"alias_kind":"arxiv_version","alias_value":"0812.1789v3","created_at":"2026-05-18T02:15:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.1789","created_at":"2026-05-18T02:15:11Z"},{"alias_kind":"pith_short_12","alias_value":"KLH2WWOAOMYR","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"KLH2WWOAOMYRY4ZW","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"KLH2WWOA","created_at":"2026-05-18T12:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:1f8abe3163db3ae3fc233877cf88ced3d3dc63bb427488f1ff76ace598fd29f3","target":"graph","created_at":"2026-05-18T02:15:11Z","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":"We report Mopra (ATNF), Anglo-Australian Telescope, and Atacama Submillimeter Telescope Experiment observations of a molecular clump in Carina, BYF73 = G286.21+0.17, which give evidence of large-scale gravitational infall in the dense gas. From the millimetre and far-infrared data, the clump has mass ~ 2 x 10^4 Msun, luminosity ~ 2-3 x 10^4 Lsun, and diameter ~ 0.9 pc. From radiative transfer modelling, we derive a mass infall rate ~ 3.4 x 10^-2 Msun yr-1. If confirmed, this rate for gravitational infall in a molecular core or clump may be the highest yet seen. The near-infrared K-band imaging","authors_text":"Andrew M. Hopkins, Naoko Furukawa, Peter J. Barnes, Stuart D. Ryder, Yasuo Fukui, Yoshinori Yonekura, Yosuke Miyamoto","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-09T20:41:02Z","title":"Discovery of Large-Scale Gravitational Infall in a Massive Protostellar Cluster"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.1789","kind":"arxiv","version":3},"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:ccd3bd2163a6ae74809dc53e879108817a2698a0830b07ecc8455f703b977746","target":"record","created_at":"2026-05-18T02:15:11Z","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":"d41b2b1f9f7ce157a0dce696be558b3b0c88396d36419eb323cbb03def04fdee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-09T20:41:02Z","title_canon_sha256":"7a774f79ba5a6cdb500eb2d08aff1acac08aa75bda7852b47b6cf106178a8532"},"schema_version":"1.0","source":{"id":"0812.1789","kind":"arxiv","version":3}},"canonical_sha256":"52cfab59c073311c733634a11b8948c296a9704b54038780755cceb91cf24fdc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"52cfab59c073311c733634a11b8948c296a9704b54038780755cceb91cf24fdc","first_computed_at":"2026-05-18T02:15:11.139932Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:15:11.139932Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sDVqDborWpN+xaopJHXnDydHPa1RSNyF+lf0PSpnm3rxryTxR1+4ncEftXejA6ZGTS22Ce4Oen0Epekc6bkKBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:15:11.140570Z","signed_message":"canonical_sha256_bytes"},"source_id":"0812.1789","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ccd3bd2163a6ae74809dc53e879108817a2698a0830b07ecc8455f703b977746","sha256:1f8abe3163db3ae3fc233877cf88ced3d3dc63bb427488f1ff76ace598fd29f3"],"state_sha256":"a02d48b6b4570f8e7e417a760d5ee6ff9f4237dc5cf3f093cb62d754d3696cba"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b8jTbjssLSXzB/JuZ+I/JA9P+w+sTyznYIGwOXFi5h4pGURsgK+ka3zDjy6RFEtYpaL7MDmG3bLUPvxv8RljDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T05:51:55.406158Z","bundle_sha256":"c3a6b918eafacc7fc8b37ae58903727b7f786a897ad21cac83927dcf0c613afe"}}