{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:RVM3EBVL7M2JS7HSYAGG6OXWMC","short_pith_number":"pith:RVM3EBVL","canonical_record":{"source":{"id":"astro-ph/0509315","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2005-09-13T07:03:13Z","cross_cats_sorted":[],"title_canon_sha256":"f612b6f3965b867eebf28b78118bc2a9e2745c0fb0b8097b5f0b3023ff9d7177","abstract_canon_sha256":"774662cbf086de758ad3980f2098b2e55ac72aea50b2dbd0ab91b533864f613c"},"schema_version":"1.0"},"canonical_sha256":"8d59b206abfb34997cf2c00c6f3af660b89a1750d8c389ebaa7e9e619a9cab82","source":{"kind":"arxiv","id":"astro-ph/0509315","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0509315","created_at":"2026-07-04T16:52:53Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0509315v2","created_at":"2026-07-04T16:52:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0509315","created_at":"2026-07-04T16:52:53Z"},{"alias_kind":"pith_short_12","alias_value":"RVM3EBVL7M2J","created_at":"2026-07-04T16:52:53Z"},{"alias_kind":"pith_short_16","alias_value":"RVM3EBVL7M2JS7HS","created_at":"2026-07-04T16:52:53Z"},{"alias_kind":"pith_short_8","alias_value":"RVM3EBVL","created_at":"2026-07-04T16:52:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:RVM3EBVL7M2JS7HSYAGG6OXWMC","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0509315","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2005-09-13T07:03:13Z","cross_cats_sorted":[],"title_canon_sha256":"f612b6f3965b867eebf28b78118bc2a9e2745c0fb0b8097b5f0b3023ff9d7177","abstract_canon_sha256":"774662cbf086de758ad3980f2098b2e55ac72aea50b2dbd0ab91b533864f613c"},"schema_version":"1.0"},"canonical_sha256":"8d59b206abfb34997cf2c00c6f3af660b89a1750d8c389ebaa7e9e619a9cab82","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:52:53.505119Z","signature_b64":"dZHxhjDBWyXH8eMJbjgcgo0XbKttTlKz1QGOH1OH2FQJj1HOvLUXDg5fWW8jLufxWQDZXL5EWgeqNgwIUBSXCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8d59b206abfb34997cf2c00c6f3af660b89a1750d8c389ebaa7e9e619a9cab82","last_reissued_at":"2026-07-04T16:52:53.504731Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:52:53.504731Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0509315","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":"2026-07-04T16:52:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wVWe+n6M9Ia1EnSgpJL+W3caL8Xz/i2/kWdtQYAUhnCpXU2Zx0W5USF8ohCBt5A3V8JnhRTtXkbiwPKAt6XNCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T23:41:09.945921Z"},"content_sha256":"0dd9c5818118c7c15ca8e3a0dcf6f19bc53c286dc6e8859935677a895aa12433","schema_version":"1.0","event_id":"sha256:0dd9c5818118c7c15ca8e3a0dcf6f19bc53c286dc6e8859935677a895aa12433"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:RVM3EBVL7M2JS7HSYAGG6OXWMC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Triggered Star Formation by Massive Stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Hsu-Tai Lee, W. P. Chen","submitted_at":"2005-09-13T07:03:13Z","abstract_excerpt":"We present our diagnosis of the role that massive stars play in the formation of low- and intermediate-mass stars in OB associations (the Lambda Ori region, Ori OB1, and Lac OB1 associations). We find that the classical T Tauri stars and Herbig Ae/Be stars tend to line up between luminous O stars and bright-rimmed or comet-shaped clouds; the closer to a cloud the progressively younger they are. Our positional and chronological study lends support to the validity of the radiation-driven implosion mechanism, where the Lyman continuum photons from a luminous O star create expanding ionization fro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0509315","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0509315/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T16:52:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gx8/rgaFQ4Qb7bJtJzBWhT5DzjrHXAa9x4EK7OXn4lLNpVUNEH/TcCbtGu6VXtinUcVnZCMoszuSVt0GCjSVDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T23:41:09.946423Z"},"content_sha256":"4b29260467034bc2c077330ae8595a5a09b40553d8982b3f770d59018b874d25","schema_version":"1.0","event_id":"sha256:4b29260467034bc2c077330ae8595a5a09b40553d8982b3f770d59018b874d25"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RVM3EBVL7M2JS7HSYAGG6OXWMC/bundle.json","state_url":"https://pith.science/pith/RVM3EBVL7M2JS7HSYAGG6OXWMC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RVM3EBVL7M2JS7HSYAGG6OXWMC/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":"2026-08-10T23:41:09Z","links":{"resolver":"https://pith.science/pith/RVM3EBVL7M2JS7HSYAGG6OXWMC","bundle":"https://pith.science/pith/RVM3EBVL7M2JS7HSYAGG6OXWMC/bundle.json","state":"https://pith.science/pith/RVM3EBVL7M2JS7HSYAGG6OXWMC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RVM3EBVL7M2JS7HSYAGG6OXWMC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:RVM3EBVL7M2JS7HSYAGG6OXWMC","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":"774662cbf086de758ad3980f2098b2e55ac72aea50b2dbd0ab91b533864f613c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2005-09-13T07:03:13Z","title_canon_sha256":"f612b6f3965b867eebf28b78118bc2a9e2745c0fb0b8097b5f0b3023ff9d7177"},"schema_version":"1.0","source":{"id":"astro-ph/0509315","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0509315","created_at":"2026-07-04T16:52:53Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0509315v2","created_at":"2026-07-04T16:52:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0509315","created_at":"2026-07-04T16:52:53Z"},{"alias_kind":"pith_short_12","alias_value":"RVM3EBVL7M2J","created_at":"2026-07-04T16:52:53Z"},{"alias_kind":"pith_short_16","alias_value":"RVM3EBVL7M2JS7HS","created_at":"2026-07-04T16:52:53Z"},{"alias_kind":"pith_short_8","alias_value":"RVM3EBVL","created_at":"2026-07-04T16:52:53Z"}],"graph_snapshots":[{"event_id":"sha256:4b29260467034bc2c077330ae8595a5a09b40553d8982b3f770d59018b874d25","target":"graph","created_at":"2026-07-04T16:52:53Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0509315/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present our diagnosis of the role that massive stars play in the formation of low- and intermediate-mass stars in OB associations (the Lambda Ori region, Ori OB1, and Lac OB1 associations). We find that the classical T Tauri stars and Herbig Ae/Be stars tend to line up between luminous O stars and bright-rimmed or comet-shaped clouds; the closer to a cloud the progressively younger they are. Our positional and chronological study lends support to the validity of the radiation-driven implosion mechanism, where the Lyman continuum photons from a luminous O star create expanding ionization fro","authors_text":"Hsu-Tai Lee, W. P. Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2005-09-13T07:03:13Z","title":"Triggered Star Formation by Massive Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0509315","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":"sha256:0dd9c5818118c7c15ca8e3a0dcf6f19bc53c286dc6e8859935677a895aa12433","target":"record","created_at":"2026-07-04T16:52:53Z","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":"774662cbf086de758ad3980f2098b2e55ac72aea50b2dbd0ab91b533864f613c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2005-09-13T07:03:13Z","title_canon_sha256":"f612b6f3965b867eebf28b78118bc2a9e2745c0fb0b8097b5f0b3023ff9d7177"},"schema_version":"1.0","source":{"id":"astro-ph/0509315","kind":"arxiv","version":2}},"canonical_sha256":"8d59b206abfb34997cf2c00c6f3af660b89a1750d8c389ebaa7e9e619a9cab82","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8d59b206abfb34997cf2c00c6f3af660b89a1750d8c389ebaa7e9e619a9cab82","first_computed_at":"2026-07-04T16:52:53.504731Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:52:53.504731Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dZHxhjDBWyXH8eMJbjgcgo0XbKttTlKz1QGOH1OH2FQJj1HOvLUXDg5fWW8jLufxWQDZXL5EWgeqNgwIUBSXCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:52:53.505119Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0509315","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0dd9c5818118c7c15ca8e3a0dcf6f19bc53c286dc6e8859935677a895aa12433","sha256:4b29260467034bc2c077330ae8595a5a09b40553d8982b3f770d59018b874d25"],"state_sha256":"372350785378923b2e93b0f03ad33185ac1080eb77888754b531e4a78e811575"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c9cA+fk475PsA+Mj3T4ZEaGdKzzN5Emt0EVRm2S/nv6HDBQWJzHQvEU8UMi6D6AVJUx+j2e5Q4xH0rJf3MfDDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T23:41:09.950841Z","bundle_sha256":"002db89884b6f1bb33be43aadc554aa20bb7aef6241534987f7baa0fa926c8d4"}}