{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:Z45PVO6Q23T4XJEWFXO6JUG3E3","short_pith_number":"pith:Z45PVO6Q","canonical_record":{"source":{"id":"2211.15705","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-11-28T19:00:07Z","cross_cats_sorted":[],"title_canon_sha256":"07afecc5a7464d87e2b5f45421ee1e1ec7f3cb27712cf7ad4ed4511e657e518f","abstract_canon_sha256":"6fb2417352c7a2e038ad81c95d43ba35eca0521ddedecb0c89dcde1885953902"},"schema_version":"1.0"},"canonical_sha256":"cf3afabbd0d6e7cba4962ddde4d0db26cc2b373711b55d2d527cf640376b270f","source":{"kind":"arxiv","id":"2211.15705","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.15705","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"arxiv_version","alias_value":"2211.15705v2","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.15705","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"pith_short_12","alias_value":"Z45PVO6Q23T4","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"pith_short_16","alias_value":"Z45PVO6Q23T4XJEW","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"pith_short_8","alias_value":"Z45PVO6Q","created_at":"2026-07-05T06:03:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:Z45PVO6Q23T4XJEWFXO6JUG3E3","target":"record","payload":{"canonical_record":{"source":{"id":"2211.15705","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-11-28T19:00:07Z","cross_cats_sorted":[],"title_canon_sha256":"07afecc5a7464d87e2b5f45421ee1e1ec7f3cb27712cf7ad4ed4511e657e518f","abstract_canon_sha256":"6fb2417352c7a2e038ad81c95d43ba35eca0521ddedecb0c89dcde1885953902"},"schema_version":"1.0"},"canonical_sha256":"cf3afabbd0d6e7cba4962ddde4d0db26cc2b373711b55d2d527cf640376b270f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:03:10.579688Z","signature_b64":"Opc94fdylCq79cJl1/knpPiqzggdkQBC1vgNLZIoiTuVdSoQmhSXx314HDkH5mrnFhX7ynFTj9Ta2AgHpAkhCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cf3afabbd0d6e7cba4962ddde4d0db26cc2b373711b55d2d527cf640376b270f","last_reissued_at":"2026-07-05T06:03:10.579218Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:03:10.579218Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2211.15705","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":"2026-07-05T06:03:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l6ky8TKuFIoyOQ5rkNU8ttRgh854zgvgp4tdUH34/AxxyGXVmIglaAYlpNJzlLDzYXPEa0TIwoVq0oKCHg57Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:57:02.369211Z"},"content_sha256":"4270bf44d6419e993fcedfbf1e83b7c0fb4bacca2f626bf846f431cdecc8a104","schema_version":"1.0","event_id":"sha256:4270bf44d6419e993fcedfbf1e83b7c0fb4bacca2f626bf846f431cdecc8a104"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:Z45PVO6Q23T4XJEWFXO6JUG3E3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Formation of star clusters and enrichment by massive stars in simulations of low-metallicity galaxies with a fully sampled initial stellar mass function","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alexandra Kozyreva, Antti Rantala, Chia-Yu Hu, Dorottya Sz\\'ecsi, Guinevere Kauffmann, Jessica May Hislop, Natalia Lah\\'en, Stefanie Walch, Thorsten Naab","submitted_at":"2022-11-28T19:00:07Z","abstract_excerpt":"We present new GRIFFIN project hydrodynamical simulations that model the formation of galactic star cluster populations in low-metallicity ($Z=0.00021$) dwarf galaxies, including radiation, supernova and stellar wind feedback of individual massive stars. In the simulations, stars are sampled from the stellar initial mass function (IMF) down to the hydrogen burning limit of $0.08$ M$_\\odot$. Mass conservation is enforced within a radius of $1$ pc for the formation of massive stars. We find that massive stars are preferentially found in star clusters and follow a correlation set at birth between"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.15705","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/2211.15705/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":"2026-07-05T06:03:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n3pb0WYMsS5DY/g0A+ADrMSy7lqs4IuACL0Qkpm/VkEjrtvc7heVYTyyD9gz6Md2NoPKkh7ToxQqvqNxYXsJBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:57:02.370117Z"},"content_sha256":"7d4422cba5119f12b23c379cc4d09b9f4a577cc9f31b3612cc431f94d98762bc","schema_version":"1.0","event_id":"sha256:7d4422cba5119f12b23c379cc4d09b9f4a577cc9f31b3612cc431f94d98762bc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z45PVO6Q23T4XJEWFXO6JUG3E3/bundle.json","state_url":"https://pith.science/pith/Z45PVO6Q23T4XJEWFXO6JUG3E3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z45PVO6Q23T4XJEWFXO6JUG3E3/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":"2026-08-03T18:57:02Z","links":{"resolver":"https://pith.science/pith/Z45PVO6Q23T4XJEWFXO6JUG3E3","bundle":"https://pith.science/pith/Z45PVO6Q23T4XJEWFXO6JUG3E3/bundle.json","state":"https://pith.science/pith/Z45PVO6Q23T4XJEWFXO6JUG3E3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z45PVO6Q23T4XJEWFXO6JUG3E3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:Z45PVO6Q23T4XJEWFXO6JUG3E3","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":"6fb2417352c7a2e038ad81c95d43ba35eca0521ddedecb0c89dcde1885953902","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-11-28T19:00:07Z","title_canon_sha256":"07afecc5a7464d87e2b5f45421ee1e1ec7f3cb27712cf7ad4ed4511e657e518f"},"schema_version":"1.0","source":{"id":"2211.15705","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.15705","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"arxiv_version","alias_value":"2211.15705v2","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.15705","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"pith_short_12","alias_value":"Z45PVO6Q23T4","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"pith_short_16","alias_value":"Z45PVO6Q23T4XJEW","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"pith_short_8","alias_value":"Z45PVO6Q","created_at":"2026-07-05T06:03:10Z"}],"graph_snapshots":[{"event_id":"sha256:7d4422cba5119f12b23c379cc4d09b9f4a577cc9f31b3612cc431f94d98762bc","target":"graph","created_at":"2026-07-05T06:03:10Z","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/2211.15705/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present new GRIFFIN project hydrodynamical simulations that model the formation of galactic star cluster populations in low-metallicity ($Z=0.00021$) dwarf galaxies, including radiation, supernova and stellar wind feedback of individual massive stars. In the simulations, stars are sampled from the stellar initial mass function (IMF) down to the hydrogen burning limit of $0.08$ M$_\\odot$. Mass conservation is enforced within a radius of $1$ pc for the formation of massive stars. We find that massive stars are preferentially found in star clusters and follow a correlation set at birth between","authors_text":"Alexandra Kozyreva, Antti Rantala, Chia-Yu Hu, Dorottya Sz\\'ecsi, Guinevere Kauffmann, Jessica May Hislop, Natalia Lah\\'en, Stefanie Walch, Thorsten Naab","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-11-28T19:00:07Z","title":"Formation of star clusters and enrichment by massive stars in simulations of low-metallicity galaxies with a fully sampled initial stellar mass function"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.15705","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":"sha256:4270bf44d6419e993fcedfbf1e83b7c0fb4bacca2f626bf846f431cdecc8a104","target":"record","created_at":"2026-07-05T06:03:10Z","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":"6fb2417352c7a2e038ad81c95d43ba35eca0521ddedecb0c89dcde1885953902","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-11-28T19:00:07Z","title_canon_sha256":"07afecc5a7464d87e2b5f45421ee1e1ec7f3cb27712cf7ad4ed4511e657e518f"},"schema_version":"1.0","source":{"id":"2211.15705","kind":"arxiv","version":2}},"canonical_sha256":"cf3afabbd0d6e7cba4962ddde4d0db26cc2b373711b55d2d527cf640376b270f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cf3afabbd0d6e7cba4962ddde4d0db26cc2b373711b55d2d527cf640376b270f","first_computed_at":"2026-07-05T06:03:10.579218Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:03:10.579218Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Opc94fdylCq79cJl1/knpPiqzggdkQBC1vgNLZIoiTuVdSoQmhSXx314HDkH5mrnFhX7ynFTj9Ta2AgHpAkhCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:03:10.579688Z","signed_message":"canonical_sha256_bytes"},"source_id":"2211.15705","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4270bf44d6419e993fcedfbf1e83b7c0fb4bacca2f626bf846f431cdecc8a104","sha256:7d4422cba5119f12b23c379cc4d09b9f4a577cc9f31b3612cc431f94d98762bc"],"state_sha256":"e18fcdb19cac64ccf6a33810853dabf04c8dbf6c02f1e35ab9b973945b03052a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v/KzFuzoP4IdF5WBDty8aYo7yx14OpoUJv+S1Roar/DoNH6uWZqtL3O9yocQ+Ic3RfLLaqoBr9nrp6mlnBgMAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T18:57:02.377677Z","bundle_sha256":"0c4829eacb32d2f586953de14eea507643ba07fb10ae87f8e78084b13f502f88"}}