{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:EKKYZV5X2ZRCA2AWSI77MJBZOJ","short_pith_number":"pith:EKKYZV5X","canonical_record":{"source":{"id":"1206.1043","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-05T20:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"829fd1f97346ee610b85c0646c0b06f3d09805cc2e70e8f9a530babf129d6343","abstract_canon_sha256":"52451fe20c80b33a2bca1e722b3f0399137e75e5df68b74e34548d4b09b377a8"},"schema_version":"1.0"},"canonical_sha256":"22958cd7b7d662206816923ff6243972668cd208b7586352de266c6a99b3cd97","source":{"kind":"arxiv","id":"1206.1043","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.1043","created_at":"2026-05-18T03:41:02Z"},{"alias_kind":"arxiv_version","alias_value":"1206.1043v2","created_at":"2026-05-18T03:41:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.1043","created_at":"2026-05-18T03:41:02Z"},{"alias_kind":"pith_short_12","alias_value":"EKKYZV5X2ZRC","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"EKKYZV5X2ZRCA2AW","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"EKKYZV5X","created_at":"2026-05-18T12:27:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:EKKYZV5X2ZRCA2AWSI77MJBZOJ","target":"record","payload":{"canonical_record":{"source":{"id":"1206.1043","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-05T20:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"829fd1f97346ee610b85c0646c0b06f3d09805cc2e70e8f9a530babf129d6343","abstract_canon_sha256":"52451fe20c80b33a2bca1e722b3f0399137e75e5df68b74e34548d4b09b377a8"},"schema_version":"1.0"},"canonical_sha256":"22958cd7b7d662206816923ff6243972668cd208b7586352de266c6a99b3cd97","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:41:02.398612Z","signature_b64":"AWWr+nR1dPN9JXEOnbKP5UF37G3S/o6wmbJsqpYYb4Q3fQcEXfVc4agqLAW8tL3fzzIhLJ/mYy8GqQd4IAMFCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"22958cd7b7d662206816923ff6243972668cd208b7586352de266c6a99b3cd97","last_reissued_at":"2026-05-18T03:41:02.398044Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:41:02.398044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1206.1043","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":"2026-05-18T03:41:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P3Q2AARKVXMMDLEg7k9vqOXK4qT5T+INTtBg6grervCzmtly21xYSZhbR5HlkHlkr1zzp9S09tjUvb7YwOYRBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T10:38:06.676075Z"},"content_sha256":"b7d00d6cd857854534f97d18df9c4d13e8d7228bdea123295171a7dcbcdc2222","schema_version":"1.0","event_id":"sha256:b7d00d6cd857854534f97d18df9c4d13e8d7228bdea123295171a7dcbcdc2222"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:EKKYZV5X2ZRCA2AWSI77MJBZOJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Birth of a Galaxy. II. The Role of Radiation Pressure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Britton D. Smith, John H. Wise, Matthew J. Turk, Michael L. Norman, Tom Abel","submitted_at":"2012-06-05T20:00:00Z","abstract_excerpt":"Massive stars provide feedback that shapes the interstellar medium of galaxies at all redshifts and their resulting stellar populations. Here we present three adaptive mesh refinement radiation hydrodynamics simulations that illustrate the impact of momentum transfer from ionising radiation to the absorbing gas on star formation in high-redshift dwarf galaxies. Momentum transfer is calculated by solving the radiative transfer equation with a ray tracing algorithm that is adaptive in spatial and angular coordinates. We find that momentum input partially affects star formation by increasing the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.1043","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":""},"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":"2026-05-18T03:41:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5y+h8yaCaSuvLz8hsjpYGhCS6CuK6X1n3tVY36h2PIcQ9B+PueRg817bLZe/oEA7A3L9PjmAadK8axXqL1QYAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T10:38:06.676430Z"},"content_sha256":"7b05f8b4998c5a89e7b73170dd6f7c5495be475b3f2838c94e137260edac39b6","schema_version":"1.0","event_id":"sha256:7b05f8b4998c5a89e7b73170dd6f7c5495be475b3f2838c94e137260edac39b6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EKKYZV5X2ZRCA2AWSI77MJBZOJ/bundle.json","state_url":"https://pith.science/pith/EKKYZV5X2ZRCA2AWSI77MJBZOJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EKKYZV5X2ZRCA2AWSI77MJBZOJ/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":"2026-06-04T10:38:06Z","links":{"resolver":"https://pith.science/pith/EKKYZV5X2ZRCA2AWSI77MJBZOJ","bundle":"https://pith.science/pith/EKKYZV5X2ZRCA2AWSI77MJBZOJ/bundle.json","state":"https://pith.science/pith/EKKYZV5X2ZRCA2AWSI77MJBZOJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EKKYZV5X2ZRCA2AWSI77MJBZOJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:EKKYZV5X2ZRCA2AWSI77MJBZOJ","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":"52451fe20c80b33a2bca1e722b3f0399137e75e5df68b74e34548d4b09b377a8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-05T20:00:00Z","title_canon_sha256":"829fd1f97346ee610b85c0646c0b06f3d09805cc2e70e8f9a530babf129d6343"},"schema_version":"1.0","source":{"id":"1206.1043","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.1043","created_at":"2026-05-18T03:41:02Z"},{"alias_kind":"arxiv_version","alias_value":"1206.1043v2","created_at":"2026-05-18T03:41:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.1043","created_at":"2026-05-18T03:41:02Z"},{"alias_kind":"pith_short_12","alias_value":"EKKYZV5X2ZRC","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"EKKYZV5X2ZRCA2AW","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"EKKYZV5X","created_at":"2026-05-18T12:27:04Z"}],"graph_snapshots":[{"event_id":"sha256:7b05f8b4998c5a89e7b73170dd6f7c5495be475b3f2838c94e137260edac39b6","target":"graph","created_at":"2026-05-18T03:41:02Z","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":"Massive stars provide feedback that shapes the interstellar medium of galaxies at all redshifts and their resulting stellar populations. Here we present three adaptive mesh refinement radiation hydrodynamics simulations that illustrate the impact of momentum transfer from ionising radiation to the absorbing gas on star formation in high-redshift dwarf galaxies. Momentum transfer is calculated by solving the radiative transfer equation with a ray tracing algorithm that is adaptive in spatial and angular coordinates. We find that momentum input partially affects star formation by increasing the ","authors_text":"Britton D. Smith, John H. Wise, Matthew J. Turk, Michael L. Norman, Tom Abel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-05T20:00:00Z","title":"The Birth of a Galaxy. II. The Role of Radiation Pressure"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.1043","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:b7d00d6cd857854534f97d18df9c4d13e8d7228bdea123295171a7dcbcdc2222","target":"record","created_at":"2026-05-18T03:41:02Z","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":"52451fe20c80b33a2bca1e722b3f0399137e75e5df68b74e34548d4b09b377a8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-05T20:00:00Z","title_canon_sha256":"829fd1f97346ee610b85c0646c0b06f3d09805cc2e70e8f9a530babf129d6343"},"schema_version":"1.0","source":{"id":"1206.1043","kind":"arxiv","version":2}},"canonical_sha256":"22958cd7b7d662206816923ff6243972668cd208b7586352de266c6a99b3cd97","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"22958cd7b7d662206816923ff6243972668cd208b7586352de266c6a99b3cd97","first_computed_at":"2026-05-18T03:41:02.398044Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:41:02.398044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AWWr+nR1dPN9JXEOnbKP5UF37G3S/o6wmbJsqpYYb4Q3fQcEXfVc4agqLAW8tL3fzzIhLJ/mYy8GqQd4IAMFCw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:41:02.398612Z","signed_message":"canonical_sha256_bytes"},"source_id":"1206.1043","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b7d00d6cd857854534f97d18df9c4d13e8d7228bdea123295171a7dcbcdc2222","sha256:7b05f8b4998c5a89e7b73170dd6f7c5495be475b3f2838c94e137260edac39b6"],"state_sha256":"7253e14e518148578ad50196f62f74218c2492f1410cc51f910a2d810e3045c7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CU36mTTauOVMIx+MPjgZntreuHY3fSBDYTMEBAuh5HX575iTq7EpSw1c7AlslclIIuw8VLJ8BsgNLoKJRzJ9BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T10:38:06.678236Z","bundle_sha256":"c9773d4899689711f1e52761112bf3a7189a9fcb8bf7df44fbdbb80e90968219"}}