{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:KV4HUTMQP3WSJVEVCZPQV2JNNF","short_pith_number":"pith:KV4HUTMQ","canonical_record":{"source":{"id":"2605.26206","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-25T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"6b786a890b70535a477b761932ee447a527c7d11dce5073ce5240aea9df42bf6","abstract_canon_sha256":"84798dfbb881e6c62d320457e72d8914ee0bda35b4f37fba91aa0da9f7ec3229"},"schema_version":"1.0"},"canonical_sha256":"55787a4d907eed24d495165f0ae92d69497602a3ab250d52768e2ec2eb7fc894","source":{"kind":"arxiv","id":"2605.26206","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.26206","created_at":"2026-05-27T00:04:28Z"},{"alias_kind":"arxiv_version","alias_value":"2605.26206v1","created_at":"2026-05-27T00:04:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.26206","created_at":"2026-05-27T00:04:28Z"},{"alias_kind":"pith_short_12","alias_value":"KV4HUTMQP3WS","created_at":"2026-05-27T00:04:28Z"},{"alias_kind":"pith_short_16","alias_value":"KV4HUTMQP3WSJVEV","created_at":"2026-05-27T00:04:28Z"},{"alias_kind":"pith_short_8","alias_value":"KV4HUTMQ","created_at":"2026-05-27T00:04:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:KV4HUTMQP3WSJVEVCZPQV2JNNF","target":"record","payload":{"canonical_record":{"source":{"id":"2605.26206","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-25T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"6b786a890b70535a477b761932ee447a527c7d11dce5073ce5240aea9df42bf6","abstract_canon_sha256":"84798dfbb881e6c62d320457e72d8914ee0bda35b4f37fba91aa0da9f7ec3229"},"schema_version":"1.0"},"canonical_sha256":"55787a4d907eed24d495165f0ae92d69497602a3ab250d52768e2ec2eb7fc894","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-27T00:04:28.738017Z","signature_b64":"NPmTLVy35YSma+eZuS3CGocqM6ukNkInOvLygW4j1L0zZC3KFIXvtZ0/eQegrOVIw1nRO8PxaL5Uq0G5wUSVCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"55787a4d907eed24d495165f0ae92d69497602a3ab250d52768e2ec2eb7fc894","last_reissued_at":"2026-05-27T00:04:28.737282Z","signature_status":"signed_v1","first_computed_at":"2026-05-27T00:04:28.737282Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.26206","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":"2026-05-27T00:04:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5MiaTAgU51ncitFbHtImtVzhiJnU/nx7hPAcvYPIpR/C9HHv2wgIwXutxngxHdxBJzrhtyWMm7mYJHec48JQBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T09:12:56.839538Z"},"content_sha256":"fc5bdcd7c205e8e880340f33e031f0e0e9dfc9b638b656def64aa443e0501509","schema_version":"1.0","event_id":"sha256:fc5bdcd7c205e8e880340f33e031f0e0e9dfc9b638b656def64aa443e0501509"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:KV4HUTMQP3WSJVEVCZPQV2JNNF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A framework for modelling Population III stars in cosmological simulations","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Bipradeep Saha, Giovanni M. Mirouh, Rahul Kannan","submitted_at":"2026-05-25T18:00:01Z","abstract_excerpt":"Population III (Pop III) stars are the first generation of stars to form in the universe, emerging from primordial gas composed mainly of hydrogen and helium. They play a crucial role in ending the cosmic dark ages and initiating reionization. In this work, we present a comprehensive framework for modelling Pop III stars in cosmological simulations. This includes three key components: (1) an enhanced thermochemical network that tracks the equilibrium abundances of key catalytic species such as $\\rm{H_2^+}$ and $\\rm{H^-}$, which are crucial for forming molecular hydrogen in primordial gas; (2) "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.26206","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/2605.26206/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":"2026-05-27T00:04:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h8S4AUkuzO9ipp00U23jYk44aSdKrMTymEqC3XDOFQ3eIRRssMPNfjCPp7CbhKj0rKkjt2MRO0Fn81f5CIx3AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T09:12:56.839920Z"},"content_sha256":"8de86acb19572ba77e549e689cbe0a6df7b432695e8f357eb7f7d81fb758fa72","schema_version":"1.0","event_id":"sha256:8de86acb19572ba77e549e689cbe0a6df7b432695e8f357eb7f7d81fb758fa72"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KV4HUTMQP3WSJVEVCZPQV2JNNF/bundle.json","state_url":"https://pith.science/pith/KV4HUTMQP3WSJVEVCZPQV2JNNF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KV4HUTMQP3WSJVEVCZPQV2JNNF/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":"2026-06-01T09:12:56Z","links":{"resolver":"https://pith.science/pith/KV4HUTMQP3WSJVEVCZPQV2JNNF","bundle":"https://pith.science/pith/KV4HUTMQP3WSJVEVCZPQV2JNNF/bundle.json","state":"https://pith.science/pith/KV4HUTMQP3WSJVEVCZPQV2JNNF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KV4HUTMQP3WSJVEVCZPQV2JNNF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:KV4HUTMQP3WSJVEVCZPQV2JNNF","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":"84798dfbb881e6c62d320457e72d8914ee0bda35b4f37fba91aa0da9f7ec3229","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-25T18:00:01Z","title_canon_sha256":"6b786a890b70535a477b761932ee447a527c7d11dce5073ce5240aea9df42bf6"},"schema_version":"1.0","source":{"id":"2605.26206","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.26206","created_at":"2026-05-27T00:04:28Z"},{"alias_kind":"arxiv_version","alias_value":"2605.26206v1","created_at":"2026-05-27T00:04:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.26206","created_at":"2026-05-27T00:04:28Z"},{"alias_kind":"pith_short_12","alias_value":"KV4HUTMQP3WS","created_at":"2026-05-27T00:04:28Z"},{"alias_kind":"pith_short_16","alias_value":"KV4HUTMQP3WSJVEV","created_at":"2026-05-27T00:04:28Z"},{"alias_kind":"pith_short_8","alias_value":"KV4HUTMQ","created_at":"2026-05-27T00:04:28Z"}],"graph_snapshots":[{"event_id":"sha256:8de86acb19572ba77e549e689cbe0a6df7b432695e8f357eb7f7d81fb758fa72","target":"graph","created_at":"2026-05-27T00:04:28Z","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/2605.26206/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Population III (Pop III) stars are the first generation of stars to form in the universe, emerging from primordial gas composed mainly of hydrogen and helium. They play a crucial role in ending the cosmic dark ages and initiating reionization. In this work, we present a comprehensive framework for modelling Pop III stars in cosmological simulations. This includes three key components: (1) an enhanced thermochemical network that tracks the equilibrium abundances of key catalytic species such as $\\rm{H_2^+}$ and $\\rm{H^-}$, which are crucial for forming molecular hydrogen in primordial gas; (2) ","authors_text":"Bipradeep Saha, Giovanni M. Mirouh, Rahul Kannan","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-25T18:00:01Z","title":"A framework for modelling Population III stars in cosmological simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.26206","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:fc5bdcd7c205e8e880340f33e031f0e0e9dfc9b638b656def64aa443e0501509","target":"record","created_at":"2026-05-27T00:04:28Z","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":"84798dfbb881e6c62d320457e72d8914ee0bda35b4f37fba91aa0da9f7ec3229","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-25T18:00:01Z","title_canon_sha256":"6b786a890b70535a477b761932ee447a527c7d11dce5073ce5240aea9df42bf6"},"schema_version":"1.0","source":{"id":"2605.26206","kind":"arxiv","version":1}},"canonical_sha256":"55787a4d907eed24d495165f0ae92d69497602a3ab250d52768e2ec2eb7fc894","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"55787a4d907eed24d495165f0ae92d69497602a3ab250d52768e2ec2eb7fc894","first_computed_at":"2026-05-27T00:04:28.737282Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-27T00:04:28.737282Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NPmTLVy35YSma+eZuS3CGocqM6ukNkInOvLygW4j1L0zZC3KFIXvtZ0/eQegrOVIw1nRO8PxaL5Uq0G5wUSVCA==","signature_status":"signed_v1","signed_at":"2026-05-27T00:04:28.738017Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.26206","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc5bdcd7c205e8e880340f33e031f0e0e9dfc9b638b656def64aa443e0501509","sha256:8de86acb19572ba77e549e689cbe0a6df7b432695e8f357eb7f7d81fb758fa72"],"state_sha256":"00f8bdd27a60d72a7ccce64f741eaf1abc1886300fa9ec06d85f1af0b2350578"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LafWjsTgcgNThsww9VpF0x2LRabKpGoyaFZC+pkdTFKHXnMe9bILJwvdY4INlk08/CniOLJJ46RsxAiwpJv1Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T09:12:56.841898Z","bundle_sha256":"90333832dd610cdefba9f84cf14b061f8f913272d7e8eea9a54a96296cbe4af4"}}