{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:STEKRCHCS3GXEPMK6IGPBSGM2C","short_pith_number":"pith:STEKRCHC","canonical_record":{"source":{"id":"1201.4732","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-01-23T14:56:35Z","cross_cats_sorted":[],"title_canon_sha256":"d07990daf5b45c930d984556801674242545181ad729e9a0d7efab707fe6ee20","abstract_canon_sha256":"c1a1fd33d60d55cef756cfe8072fd410c378a63eae9663e3a1cc385d914118ce"},"schema_version":"1.0"},"canonical_sha256":"94c8a888e296cd723d8af20cf0c8ccd0a190b118e7f577ba99fe35e53e6b80f6","source":{"kind":"arxiv","id":"1201.4732","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.4732","created_at":"2026-05-18T01:58:43Z"},{"alias_kind":"arxiv_version","alias_value":"1201.4732v2","created_at":"2026-05-18T01:58:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.4732","created_at":"2026-05-18T01:58:43Z"},{"alias_kind":"pith_short_12","alias_value":"STEKRCHCS3GX","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"STEKRCHCS3GXEPMK","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"STEKRCHC","created_at":"2026-05-18T12:27:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:STEKRCHCS3GXEPMK6IGPBSGM2C","target":"record","payload":{"canonical_record":{"source":{"id":"1201.4732","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-01-23T14:56:35Z","cross_cats_sorted":[],"title_canon_sha256":"d07990daf5b45c930d984556801674242545181ad729e9a0d7efab707fe6ee20","abstract_canon_sha256":"c1a1fd33d60d55cef756cfe8072fd410c378a63eae9663e3a1cc385d914118ce"},"schema_version":"1.0"},"canonical_sha256":"94c8a888e296cd723d8af20cf0c8ccd0a190b118e7f577ba99fe35e53e6b80f6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:43.425803Z","signature_b64":"h+FkRn8U6knfY23ZGN1SNhgZVw+u8wrE6euC3Gtq2FtXpeUNiSUSE7lePSWt5CMsM51v7L7FL96w4kSU7KF7AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"94c8a888e296cd723d8af20cf0c8ccd0a190b118e7f577ba99fe35e53e6b80f6","last_reissued_at":"2026-05-18T01:58:43.425047Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:43.425047Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.4732","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":"2026-05-18T01:58:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"frWJkR4lVjfhbRcpBdeTBcPwwigH7srjFnTmkzCNFwVbgoff/Gdb5RcSigle7fY1aE5B/smEZ8BVDS4wnep7AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T10:27:31.291988Z"},"content_sha256":"06d936694e5b8f4dafbc749cfa93256a3b0e3dd649a438ca7e608fc0b6db47b6","schema_version":"1.0","event_id":"sha256:06d936694e5b8f4dafbc749cfa93256a3b0e3dd649a438ca7e608fc0b6db47b6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:STEKRCHCS3GXEPMK6IGPBSGM2C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Search for starless clumps in the ATLASGAL survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"B. Lefloch, F. Motte, F. Schuller, F. Wyrowski, H. Beuther, J. Tackenberg, K. Menten, L. Bronfman, L. Testi, M. Wienen, S. Bontemps, Th. Henning","submitted_at":"2012-01-23T14:56:35Z","abstract_excerpt":"In this study, we present an unbiased sample of the earliest stages of massive star formation across 20 square-degree of the sky. Within the region 10deg < l < 20deg and |b| < 1deg, we search the ATLASGAL survey at 870 micron for dense gas condensations. These clumps are carefully examined for indications of ongoing star formation using YSOs from the GLIMPSE source catalog as well as sources in the 24 micron MIPSGAL images, to search for starless clumps. We calculate the column densities as well as the kinematic distances and masses for sources where the v_lsr is known from spectroscopic obser"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.4732","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":"2026-05-18T01:58:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JYih6gg4O07/68QqQrYrAHHohynVUR2hq3+ZzT7ERRPW3J+2JfEgQgwoXtjhVjbxiflTfsafXoubhM5JW8LoBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T10:27:31.292718Z"},"content_sha256":"79efee888dcae147c82d8967b20fedb876dfef8b034ae6cfa153fd1339392f29","schema_version":"1.0","event_id":"sha256:79efee888dcae147c82d8967b20fedb876dfef8b034ae6cfa153fd1339392f29"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/STEKRCHCS3GXEPMK6IGPBSGM2C/bundle.json","state_url":"https://pith.science/pith/STEKRCHCS3GXEPMK6IGPBSGM2C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/STEKRCHCS3GXEPMK6IGPBSGM2C/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":"2026-05-27T10:27:31Z","links":{"resolver":"https://pith.science/pith/STEKRCHCS3GXEPMK6IGPBSGM2C","bundle":"https://pith.science/pith/STEKRCHCS3GXEPMK6IGPBSGM2C/bundle.json","state":"https://pith.science/pith/STEKRCHCS3GXEPMK6IGPBSGM2C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/STEKRCHCS3GXEPMK6IGPBSGM2C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:STEKRCHCS3GXEPMK6IGPBSGM2C","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":"c1a1fd33d60d55cef756cfe8072fd410c378a63eae9663e3a1cc385d914118ce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-01-23T14:56:35Z","title_canon_sha256":"d07990daf5b45c930d984556801674242545181ad729e9a0d7efab707fe6ee20"},"schema_version":"1.0","source":{"id":"1201.4732","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.4732","created_at":"2026-05-18T01:58:43Z"},{"alias_kind":"arxiv_version","alias_value":"1201.4732v2","created_at":"2026-05-18T01:58:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.4732","created_at":"2026-05-18T01:58:43Z"},{"alias_kind":"pith_short_12","alias_value":"STEKRCHCS3GX","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"STEKRCHCS3GXEPMK","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"STEKRCHC","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:79efee888dcae147c82d8967b20fedb876dfef8b034ae6cfa153fd1339392f29","target":"graph","created_at":"2026-05-18T01:58:43Z","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 this study, we present an unbiased sample of the earliest stages of massive star formation across 20 square-degree of the sky. Within the region 10deg < l < 20deg and |b| < 1deg, we search the ATLASGAL survey at 870 micron for dense gas condensations. These clumps are carefully examined for indications of ongoing star formation using YSOs from the GLIMPSE source catalog as well as sources in the 24 micron MIPSGAL images, to search for starless clumps. We calculate the column densities as well as the kinematic distances and masses for sources where the v_lsr is known from spectroscopic obser","authors_text":"B. Lefloch, F. Motte, F. Schuller, F. Wyrowski, H. Beuther, J. Tackenberg, K. Menten, L. Bronfman, L. Testi, M. Wienen, S. Bontemps, Th. Henning","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-01-23T14:56:35Z","title":"Search for starless clumps in the ATLASGAL survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.4732","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":"sha256:06d936694e5b8f4dafbc749cfa93256a3b0e3dd649a438ca7e608fc0b6db47b6","target":"record","created_at":"2026-05-18T01:58:43Z","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":"c1a1fd33d60d55cef756cfe8072fd410c378a63eae9663e3a1cc385d914118ce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-01-23T14:56:35Z","title_canon_sha256":"d07990daf5b45c930d984556801674242545181ad729e9a0d7efab707fe6ee20"},"schema_version":"1.0","source":{"id":"1201.4732","kind":"arxiv","version":2}},"canonical_sha256":"94c8a888e296cd723d8af20cf0c8ccd0a190b118e7f577ba99fe35e53e6b80f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"94c8a888e296cd723d8af20cf0c8ccd0a190b118e7f577ba99fe35e53e6b80f6","first_computed_at":"2026-05-18T01:58:43.425047Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:43.425047Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"h+FkRn8U6knfY23ZGN1SNhgZVw+u8wrE6euC3Gtq2FtXpeUNiSUSE7lePSWt5CMsM51v7L7FL96w4kSU7KF7AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:43.425803Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.4732","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:06d936694e5b8f4dafbc749cfa93256a3b0e3dd649a438ca7e608fc0b6db47b6","sha256:79efee888dcae147c82d8967b20fedb876dfef8b034ae6cfa153fd1339392f29"],"state_sha256":"633ebabef0f1e332168a30f101eced34d91f940a2a59d027b3044e24d2fb7187"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L7oJ5j5R3WGBr8QMW6c2fKMByvH8i+/WJl+ENUbKnqSLXtgeGiqHI93JA4zPTOH6BZOLYUvg/MqO8Wk0QyRdBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T10:27:31.296377Z","bundle_sha256":"b303f9cde515d83c70223568eee6af9b0e669f01cee9080af497fddb117be19a"}}