{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:JIIZZJ5JCOZYQ6BYCCXP4IYGW6","short_pith_number":"pith:JIIZZJ5J","canonical_record":{"source":{"id":"2101.02348","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-07T03:19:06Z","cross_cats_sorted":[],"title_canon_sha256":"6572e6b56775686a22b1978b02a083bd261397a3cc0e06e0cd0176b90d3ce257","abstract_canon_sha256":"8fe1424ec5cc8ce6d1b135d5839d125a015ed35947ee4668d90660ed7f043da5"},"schema_version":"1.0"},"canonical_sha256":"4a119ca7a913b388783810aefe2306b7886433673d62534c0d0c18e291633fcc","source":{"kind":"arxiv","id":"2101.02348","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.02348","created_at":"2026-07-05T02:05:12Z"},{"alias_kind":"arxiv_version","alias_value":"2101.02348v1","created_at":"2026-07-05T02:05:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.02348","created_at":"2026-07-05T02:05:12Z"},{"alias_kind":"pith_short_12","alias_value":"JIIZZJ5JCOZY","created_at":"2026-07-05T02:05:12Z"},{"alias_kind":"pith_short_16","alias_value":"JIIZZJ5JCOZYQ6BY","created_at":"2026-07-05T02:05:12Z"},{"alias_kind":"pith_short_8","alias_value":"JIIZZJ5J","created_at":"2026-07-05T02:05:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:JIIZZJ5JCOZYQ6BYCCXP4IYGW6","target":"record","payload":{"canonical_record":{"source":{"id":"2101.02348","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-07T03:19:06Z","cross_cats_sorted":[],"title_canon_sha256":"6572e6b56775686a22b1978b02a083bd261397a3cc0e06e0cd0176b90d3ce257","abstract_canon_sha256":"8fe1424ec5cc8ce6d1b135d5839d125a015ed35947ee4668d90660ed7f043da5"},"schema_version":"1.0"},"canonical_sha256":"4a119ca7a913b388783810aefe2306b7886433673d62534c0d0c18e291633fcc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:05:12.754021Z","signature_b64":"xZs5UvNHjeAKoJW+p+yI1K0zS043SPx51vg0BBxAE6GhvcL3/saxGr+cjIYNhWF4q1/Eq13l1BVBFP1ZiJ/GDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4a119ca7a913b388783810aefe2306b7886433673d62534c0d0c18e291633fcc","last_reissued_at":"2026-07-05T02:05:12.753630Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:05:12.753630Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2101.02348","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":"2026-07-05T02:05:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sAsDFDhkD+wePW0aykgRKb1HXCinBmUGyisOe5Jtzuwvi3skZq2XHyTfRIf03Um3YHRN4fDah8bep9tfixQjCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T07:30:54.299228Z"},"content_sha256":"d061901dc839e8661827e1b4e6a9099c384d51e77bf126e6bdd241e3c143c39b","schema_version":"1.0","event_id":"sha256:d061901dc839e8661827e1b4e6a9099c384d51e77bf126e6bdd241e3c143c39b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:JIIZZJ5JCOZYQ6BYCCXP4IYGW6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Simulations of globular clusters within their parent galaxies: multiple stellar populations and internal kinematics","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Kenji Bekki, Madeleine McKenzie","submitted_at":"2021-01-07T03:19:06Z","abstract_excerpt":"Using three-dimensional smoothed particle hydrodynamics simulations, we investigate the formation of multiple stellar populations (MSPs) in globular clusters (GCs) within the context of their parent galaxies. In our scenario, the second generation (2G) of stars originate from both asymptotic giant branch (AGB) polluters and pristine gas accreted from the host galaxy. Previous theoretical and numerical studies have demonstrated that this 'AGB with dilution' model has the potential to alleviate several problems faced by the classical AGB scenario. However, the accretion of pristine gas on to the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.02348","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/2101.02348/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":"2026-07-05T02:05:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B1lY6XBjzgrF4Y5XtZvNtXF//vlZ4txVm6tR8fD4bJzegvaDntSplOoanupTRAYK4tf7gsnnlhUMzrfimI5JAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T07:30:54.299734Z"},"content_sha256":"8ac40c9455f5f9b25cdc886af53b9d55a487a72cc844a5c18e3c7e57d73f1e34","schema_version":"1.0","event_id":"sha256:8ac40c9455f5f9b25cdc886af53b9d55a487a72cc844a5c18e3c7e57d73f1e34"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JIIZZJ5JCOZYQ6BYCCXP4IYGW6/bundle.json","state_url":"https://pith.science/pith/JIIZZJ5JCOZYQ6BYCCXP4IYGW6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JIIZZJ5JCOZYQ6BYCCXP4IYGW6/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":"2026-08-21T07:30:54Z","links":{"resolver":"https://pith.science/pith/JIIZZJ5JCOZYQ6BYCCXP4IYGW6","bundle":"https://pith.science/pith/JIIZZJ5JCOZYQ6BYCCXP4IYGW6/bundle.json","state":"https://pith.science/pith/JIIZZJ5JCOZYQ6BYCCXP4IYGW6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JIIZZJ5JCOZYQ6BYCCXP4IYGW6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:JIIZZJ5JCOZYQ6BYCCXP4IYGW6","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":"8fe1424ec5cc8ce6d1b135d5839d125a015ed35947ee4668d90660ed7f043da5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-07T03:19:06Z","title_canon_sha256":"6572e6b56775686a22b1978b02a083bd261397a3cc0e06e0cd0176b90d3ce257"},"schema_version":"1.0","source":{"id":"2101.02348","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.02348","created_at":"2026-07-05T02:05:12Z"},{"alias_kind":"arxiv_version","alias_value":"2101.02348v1","created_at":"2026-07-05T02:05:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.02348","created_at":"2026-07-05T02:05:12Z"},{"alias_kind":"pith_short_12","alias_value":"JIIZZJ5JCOZY","created_at":"2026-07-05T02:05:12Z"},{"alias_kind":"pith_short_16","alias_value":"JIIZZJ5JCOZYQ6BY","created_at":"2026-07-05T02:05:12Z"},{"alias_kind":"pith_short_8","alias_value":"JIIZZJ5J","created_at":"2026-07-05T02:05:12Z"}],"graph_snapshots":[{"event_id":"sha256:8ac40c9455f5f9b25cdc886af53b9d55a487a72cc844a5c18e3c7e57d73f1e34","target":"graph","created_at":"2026-07-05T02:05:12Z","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/2101.02348/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Using three-dimensional smoothed particle hydrodynamics simulations, we investigate the formation of multiple stellar populations (MSPs) in globular clusters (GCs) within the context of their parent galaxies. In our scenario, the second generation (2G) of stars originate from both asymptotic giant branch (AGB) polluters and pristine gas accreted from the host galaxy. Previous theoretical and numerical studies have demonstrated that this 'AGB with dilution' model has the potential to alleviate several problems faced by the classical AGB scenario. However, the accretion of pristine gas on to the","authors_text":"Kenji Bekki, Madeleine McKenzie","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-07T03:19:06Z","title":"Simulations of globular clusters within their parent galaxies: multiple stellar populations and internal kinematics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.02348","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:d061901dc839e8661827e1b4e6a9099c384d51e77bf126e6bdd241e3c143c39b","target":"record","created_at":"2026-07-05T02:05:12Z","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":"8fe1424ec5cc8ce6d1b135d5839d125a015ed35947ee4668d90660ed7f043da5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-07T03:19:06Z","title_canon_sha256":"6572e6b56775686a22b1978b02a083bd261397a3cc0e06e0cd0176b90d3ce257"},"schema_version":"1.0","source":{"id":"2101.02348","kind":"arxiv","version":1}},"canonical_sha256":"4a119ca7a913b388783810aefe2306b7886433673d62534c0d0c18e291633fcc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a119ca7a913b388783810aefe2306b7886433673d62534c0d0c18e291633fcc","first_computed_at":"2026-07-05T02:05:12.753630Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:05:12.753630Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xZs5UvNHjeAKoJW+p+yI1K0zS043SPx51vg0BBxAE6GhvcL3/saxGr+cjIYNhWF4q1/Eq13l1BVBFP1ZiJ/GDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:05:12.754021Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.02348","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d061901dc839e8661827e1b4e6a9099c384d51e77bf126e6bdd241e3c143c39b","sha256:8ac40c9455f5f9b25cdc886af53b9d55a487a72cc844a5c18e3c7e57d73f1e34"],"state_sha256":"b01c8c055f7d0a90230a43939ca6b69588c385f970e39528cf28d6c87ee21a5f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N4rxVDesPiSf+EfB/jjCsGFgIq+shknYvpBFl3cNhugyB7NzIk7+ZspfnxA0i8m8a7Dr9fMTHzABq2kef3iBDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T07:30:54.304072Z","bundle_sha256":"e528ae4961a2bbe3e3d398c18910a42fe754e555e81b022817fe0f3585e595c8"}}