{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:U2S3WOKCPYPIK4P5IZEJLND6QZ","short_pith_number":"pith:U2S3WOKC","canonical_record":{"source":{"id":"1805.09444","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-05-23T22:06:12Z","cross_cats_sorted":[],"title_canon_sha256":"42da3fbed8eefc7e1b289c3614a18e3ac04a8f59c408a47be8db0a2bba9afb4e","abstract_canon_sha256":"3aa6c78823a9fc6817f11ef8c43f70167658571e53eb4ff19eb6c640ade835ff"},"schema_version":"1.0"},"canonical_sha256":"a6a5bb39427e1e8571fd464895b47e8663a9e3af508f49580761f3a7bafbe923","source":{"kind":"arxiv","id":"1805.09444","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.09444","created_at":"2026-05-18T00:14:07Z"},{"alias_kind":"arxiv_version","alias_value":"1805.09444v1","created_at":"2026-05-18T00:14:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.09444","created_at":"2026-05-18T00:14:07Z"},{"alias_kind":"pith_short_12","alias_value":"U2S3WOKCPYPI","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"U2S3WOKCPYPIK4P5","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"U2S3WOKC","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:U2S3WOKCPYPIK4P5IZEJLND6QZ","target":"record","payload":{"canonical_record":{"source":{"id":"1805.09444","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-05-23T22:06:12Z","cross_cats_sorted":[],"title_canon_sha256":"42da3fbed8eefc7e1b289c3614a18e3ac04a8f59c408a47be8db0a2bba9afb4e","abstract_canon_sha256":"3aa6c78823a9fc6817f11ef8c43f70167658571e53eb4ff19eb6c640ade835ff"},"schema_version":"1.0"},"canonical_sha256":"a6a5bb39427e1e8571fd464895b47e8663a9e3af508f49580761f3a7bafbe923","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:14:07.231099Z","signature_b64":"B3DOCnSmVKpdf/mffU/89isep6m4jaHs3GBP3/u2/7+jWBJVyTh0hjzp59nK+xpru0SPeo4vUvTKBWuUxKMNDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a6a5bb39427e1e8571fd464895b47e8663a9e3af508f49580761f3a7bafbe923","last_reissued_at":"2026-05-18T00:14:07.230370Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:14:07.230370Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.09444","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":"2026-05-18T00:14:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U1UmySLd7UaXXI+rVrC9A9z6UPVMsn9WE4U7vs1b7R/MW/8412v8jyVZYJKzxIfFGjkCsNO9NxjQso3Ft7GQDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T23:28:37.432815Z"},"content_sha256":"b09ee3eeb903c0f1e6bee2da6d108808eee4bbed8e6a6426ee8e6cad11849d2c","schema_version":"1.0","event_id":"sha256:b09ee3eeb903c0f1e6bee2da6d108808eee4bbed8e6a6426ee8e6cad11849d2c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:U2S3WOKCPYPIK4P5IZEJLND6QZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gas expulsion vs gas retention in young stellar clusters II: effects of cooling and mass segregation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Guillermo Tenorio-Tagle, Sergiy Silich","submitted_at":"2018-05-23T22:06:12Z","abstract_excerpt":"Gas expulsion or gas retention is a central issue in most of the models for multiple stellar populations and light element anti-correlations in globular clusters. The success of the residual matter expulsion or its retention within young stellar clusters has also a fundamental importance in order to understand how star formation proceeds in present-day and ancient star-forming galaxies and if proto-globular clusters with multiple stellar populations are formed in the present epoch. It is usually suggested that either the residual gas is rapidly ejected from star-forming clouds by stellar winds"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.09444","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":""},"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":"2026-05-18T00:14:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tpz+rSEILfrlvzIuGJ4Al06gGNKJc2f2DD6XT1XMGIKohhClE06+DMVeLLJja6JfD4dXT6AeP9smthJ0bhP8Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T23:28:37.433595Z"},"content_sha256":"f651ffc6daeea43c0231896a277d3b5674ce9c6a54ce1befaa54451a18619762","schema_version":"1.0","event_id":"sha256:f651ffc6daeea43c0231896a277d3b5674ce9c6a54ce1befaa54451a18619762"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U2S3WOKCPYPIK4P5IZEJLND6QZ/bundle.json","state_url":"https://pith.science/pith/U2S3WOKCPYPIK4P5IZEJLND6QZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U2S3WOKCPYPIK4P5IZEJLND6QZ/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":"2026-05-19T23:28:37Z","links":{"resolver":"https://pith.science/pith/U2S3WOKCPYPIK4P5IZEJLND6QZ","bundle":"https://pith.science/pith/U2S3WOKCPYPIK4P5IZEJLND6QZ/bundle.json","state":"https://pith.science/pith/U2S3WOKCPYPIK4P5IZEJLND6QZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U2S3WOKCPYPIK4P5IZEJLND6QZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:U2S3WOKCPYPIK4P5IZEJLND6QZ","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":"3aa6c78823a9fc6817f11ef8c43f70167658571e53eb4ff19eb6c640ade835ff","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-05-23T22:06:12Z","title_canon_sha256":"42da3fbed8eefc7e1b289c3614a18e3ac04a8f59c408a47be8db0a2bba9afb4e"},"schema_version":"1.0","source":{"id":"1805.09444","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.09444","created_at":"2026-05-18T00:14:07Z"},{"alias_kind":"arxiv_version","alias_value":"1805.09444v1","created_at":"2026-05-18T00:14:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.09444","created_at":"2026-05-18T00:14:07Z"},{"alias_kind":"pith_short_12","alias_value":"U2S3WOKCPYPI","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"U2S3WOKCPYPIK4P5","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"U2S3WOKC","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:f651ffc6daeea43c0231896a277d3b5674ce9c6a54ce1befaa54451a18619762","target":"graph","created_at":"2026-05-18T00:14:07Z","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":"Gas expulsion or gas retention is a central issue in most of the models for multiple stellar populations and light element anti-correlations in globular clusters. The success of the residual matter expulsion or its retention within young stellar clusters has also a fundamental importance in order to understand how star formation proceeds in present-day and ancient star-forming galaxies and if proto-globular clusters with multiple stellar populations are formed in the present epoch. It is usually suggested that either the residual gas is rapidly ejected from star-forming clouds by stellar winds","authors_text":"Guillermo Tenorio-Tagle, Sergiy Silich","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-05-23T22:06:12Z","title":"Gas expulsion vs gas retention in young stellar clusters II: effects of cooling and mass segregation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.09444","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:b09ee3eeb903c0f1e6bee2da6d108808eee4bbed8e6a6426ee8e6cad11849d2c","target":"record","created_at":"2026-05-18T00:14:07Z","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":"3aa6c78823a9fc6817f11ef8c43f70167658571e53eb4ff19eb6c640ade835ff","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-05-23T22:06:12Z","title_canon_sha256":"42da3fbed8eefc7e1b289c3614a18e3ac04a8f59c408a47be8db0a2bba9afb4e"},"schema_version":"1.0","source":{"id":"1805.09444","kind":"arxiv","version":1}},"canonical_sha256":"a6a5bb39427e1e8571fd464895b47e8663a9e3af508f49580761f3a7bafbe923","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a6a5bb39427e1e8571fd464895b47e8663a9e3af508f49580761f3a7bafbe923","first_computed_at":"2026-05-18T00:14:07.230370Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:14:07.230370Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"B3DOCnSmVKpdf/mffU/89isep6m4jaHs3GBP3/u2/7+jWBJVyTh0hjzp59nK+xpru0SPeo4vUvTKBWuUxKMNDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:14:07.231099Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.09444","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b09ee3eeb903c0f1e6bee2da6d108808eee4bbed8e6a6426ee8e6cad11849d2c","sha256:f651ffc6daeea43c0231896a277d3b5674ce9c6a54ce1befaa54451a18619762"],"state_sha256":"caed2d69f405529dbace827f2919dbde7f30ab6a1fc7135bd319a470bcff1406"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UlPR2icAVKdEvwZfG9pd+/ogo243xV2rxl8pZ2oQuHQIW45glAYmPepWjWv52yG7P55Qu5o9aVmDsiRZs650BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T23:28:37.437427Z","bundle_sha256":"96cafe4d4d6ed1838fe8c28f7924f64ee714a7883212dc2c0192f68d156da443"}}