{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:WSXI6OBL3MWP3V7T4HLVPKVUK2","short_pith_number":"pith:WSXI6OBL","canonical_record":{"source":{"id":"astro-ph/0501142","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-01-10T16:06:40Z","cross_cats_sorted":[],"title_canon_sha256":"3e14100a6b9dfcb907ee88d05f73532ed3eefaed1facf386fb5c002b32c548c6","abstract_canon_sha256":"5cf14059a6b43252fd5f698dbb17f80a695605e1896bc97a5cc806384401771c"},"schema_version":"1.0"},"canonical_sha256":"b4ae8f382bdb2cfdd7f3e1d757aab4568801b83e51d04012b6e3b1fb401fe5e5","source":{"kind":"arxiv","id":"astro-ph/0501142","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0501142","created_at":"2026-07-04T16:50:34Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0501142v1","created_at":"2026-07-04T16:50:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0501142","created_at":"2026-07-04T16:50:34Z"},{"alias_kind":"pith_short_12","alias_value":"WSXI6OBL3MWP","created_at":"2026-07-04T16:50:34Z"},{"alias_kind":"pith_short_16","alias_value":"WSXI6OBL3MWP3V7T","created_at":"2026-07-04T16:50:34Z"},{"alias_kind":"pith_short_8","alias_value":"WSXI6OBL","created_at":"2026-07-04T16:50:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:WSXI6OBL3MWP3V7T4HLVPKVUK2","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0501142","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-01-10T16:06:40Z","cross_cats_sorted":[],"title_canon_sha256":"3e14100a6b9dfcb907ee88d05f73532ed3eefaed1facf386fb5c002b32c548c6","abstract_canon_sha256":"5cf14059a6b43252fd5f698dbb17f80a695605e1896bc97a5cc806384401771c"},"schema_version":"1.0"},"canonical_sha256":"b4ae8f382bdb2cfdd7f3e1d757aab4568801b83e51d04012b6e3b1fb401fe5e5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:50:34.908589Z","signature_b64":"WHVA5WUcU3+QcUEEg2gRckg0coQG+/x4EnXNY/5kowsVsdsGWxv7piOODnBislN87pfaFAJA71QbpWei/TR5AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b4ae8f382bdb2cfdd7f3e1d757aab4568801b83e51d04012b6e3b1fb401fe5e5","last_reissued_at":"2026-07-04T16:50:34.908210Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:50:34.908210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0501142","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":"2026-07-04T16:50:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z6fdg2pzcP0ZkywQUxLBcrWozUZnOYuYS7SQ9ILSRZhhNreQIw9CZ9P15x0hsFmTPHakdIaMOWw2kfvLiDyhDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T23:24:43.614335Z"},"content_sha256":"bb1bb5c037754900c9c6e31d09483935c66cfa3295aa8c72e930e04e9bd4c4b2","schema_version":"1.0","event_id":"sha256:bb1bb5c037754900c9c6e31d09483935c66cfa3295aa8c72e930e04e9bd4c4b2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:WSXI6OBL3MWP3V7T4HLVPKVUK2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Blue Stragglers as Stellar Collision Products: the Angular Momentum Question","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Alison Sills, Melvyn B. Davies, Tim Adams","submitted_at":"2005-01-10T16:06:40Z","abstract_excerpt":"We investigate the structure and evolution of blue stragglers stars which were formed from direct stellar collisions between main sequence stars in globular clusters. In particular, we look at the rotational evolution of the products of off-axis collisions. As found in previous work, such blue stragglers initially have too high an angular momentum to contract down to the main sequence. We consider angular momentum loss through either disc locking or locking to an outflowing wind and show that both methods allow the merged object to shed sufficient angular momentum to contract down to the main "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0501142","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0501142/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":"2026-07-04T16:50:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HD0YRvjwm+p9lWfbHOo27IxX/oaF4e+GspYf5L5d4+h9PvRJXzp/gwpDcvDETNWKc8bh8qD3Sp1jxWhLotu4Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T23:24:43.614873Z"},"content_sha256":"3dba36c5db618f66b9779c4a61d12cab8e0d0fe68f7299e587643828da85ea8d","schema_version":"1.0","event_id":"sha256:3dba36c5db618f66b9779c4a61d12cab8e0d0fe68f7299e587643828da85ea8d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WSXI6OBL3MWP3V7T4HLVPKVUK2/bundle.json","state_url":"https://pith.science/pith/WSXI6OBL3MWP3V7T4HLVPKVUK2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WSXI6OBL3MWP3V7T4HLVPKVUK2/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":"2026-07-04T23:24:43Z","links":{"resolver":"https://pith.science/pith/WSXI6OBL3MWP3V7T4HLVPKVUK2","bundle":"https://pith.science/pith/WSXI6OBL3MWP3V7T4HLVPKVUK2/bundle.json","state":"https://pith.science/pith/WSXI6OBL3MWP3V7T4HLVPKVUK2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WSXI6OBL3MWP3V7T4HLVPKVUK2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:WSXI6OBL3MWP3V7T4HLVPKVUK2","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":"5cf14059a6b43252fd5f698dbb17f80a695605e1896bc97a5cc806384401771c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-01-10T16:06:40Z","title_canon_sha256":"3e14100a6b9dfcb907ee88d05f73532ed3eefaed1facf386fb5c002b32c548c6"},"schema_version":"1.0","source":{"id":"astro-ph/0501142","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0501142","created_at":"2026-07-04T16:50:34Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0501142v1","created_at":"2026-07-04T16:50:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0501142","created_at":"2026-07-04T16:50:34Z"},{"alias_kind":"pith_short_12","alias_value":"WSXI6OBL3MWP","created_at":"2026-07-04T16:50:34Z"},{"alias_kind":"pith_short_16","alias_value":"WSXI6OBL3MWP3V7T","created_at":"2026-07-04T16:50:34Z"},{"alias_kind":"pith_short_8","alias_value":"WSXI6OBL","created_at":"2026-07-04T16:50:34Z"}],"graph_snapshots":[{"event_id":"sha256:3dba36c5db618f66b9779c4a61d12cab8e0d0fe68f7299e587643828da85ea8d","target":"graph","created_at":"2026-07-04T16:50:34Z","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/0501142/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the structure and evolution of blue stragglers stars which were formed from direct stellar collisions between main sequence stars in globular clusters. In particular, we look at the rotational evolution of the products of off-axis collisions. As found in previous work, such blue stragglers initially have too high an angular momentum to contract down to the main sequence. We consider angular momentum loss through either disc locking or locking to an outflowing wind and show that both methods allow the merged object to shed sufficient angular momentum to contract down to the main ","authors_text":"Alison Sills, Melvyn B. Davies, Tim Adams","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-01-10T16:06:40Z","title":"Blue Stragglers as Stellar Collision Products: the Angular Momentum Question"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0501142","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:bb1bb5c037754900c9c6e31d09483935c66cfa3295aa8c72e930e04e9bd4c4b2","target":"record","created_at":"2026-07-04T16:50:34Z","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":"5cf14059a6b43252fd5f698dbb17f80a695605e1896bc97a5cc806384401771c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-01-10T16:06:40Z","title_canon_sha256":"3e14100a6b9dfcb907ee88d05f73532ed3eefaed1facf386fb5c002b32c548c6"},"schema_version":"1.0","source":{"id":"astro-ph/0501142","kind":"arxiv","version":1}},"canonical_sha256":"b4ae8f382bdb2cfdd7f3e1d757aab4568801b83e51d04012b6e3b1fb401fe5e5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b4ae8f382bdb2cfdd7f3e1d757aab4568801b83e51d04012b6e3b1fb401fe5e5","first_computed_at":"2026-07-04T16:50:34.908210Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:50:34.908210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WHVA5WUcU3+QcUEEg2gRckg0coQG+/x4EnXNY/5kowsVsdsGWxv7piOODnBislN87pfaFAJA71QbpWei/TR5AQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:50:34.908589Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0501142","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bb1bb5c037754900c9c6e31d09483935c66cfa3295aa8c72e930e04e9bd4c4b2","sha256:3dba36c5db618f66b9779c4a61d12cab8e0d0fe68f7299e587643828da85ea8d"],"state_sha256":"21bf5a7cb9099204980d872a2e180c9f71b8f9859420fdab412539b0228d1ad3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vQHOqyyrXqLE5AjQ2r6rAvWxaSNnZBucolL12hXMQxCxr/J6PzpPat+75YIlyPAsuUocrYbhIs3vJswQ6eQBBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T23:24:43.617159Z","bundle_sha256":"b69d004d2b49afe4dd98cf51b33c1910babf23ddd00d70ad66a71cc950bee53d"}}