{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:X4V6CJG6TEE6PCGHVBRRNRVUVO","short_pith_number":"pith:X4V6CJG6","canonical_record":{"source":{"id":"1510.05671","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-10-19T20:21:25Z","cross_cats_sorted":[],"title_canon_sha256":"1378135066892e6aa80dd7615facf395b783f7370c884bd6a6d946e42d4808fa","abstract_canon_sha256":"8e846facb7af1829fd8688dd9f1b60ea2e757f84be687f85427ebf62cec355df"},"schema_version":"1.0"},"canonical_sha256":"bf2be124de9909e788c7a86316c6b4abaecde2485daa0f1ae1a4874fc1076554","source":{"kind":"arxiv","id":"1510.05671","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.05671","created_at":"2026-05-18T01:13:16Z"},{"alias_kind":"arxiv_version","alias_value":"1510.05671v2","created_at":"2026-05-18T01:13:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.05671","created_at":"2026-05-18T01:13:16Z"},{"alias_kind":"pith_short_12","alias_value":"X4V6CJG6TEE6","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"X4V6CJG6TEE6PCGH","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"X4V6CJG6","created_at":"2026-05-18T12:29:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:X4V6CJG6TEE6PCGHVBRRNRVUVO","target":"record","payload":{"canonical_record":{"source":{"id":"1510.05671","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-10-19T20:21:25Z","cross_cats_sorted":[],"title_canon_sha256":"1378135066892e6aa80dd7615facf395b783f7370c884bd6a6d946e42d4808fa","abstract_canon_sha256":"8e846facb7af1829fd8688dd9f1b60ea2e757f84be687f85427ebf62cec355df"},"schema_version":"1.0"},"canonical_sha256":"bf2be124de9909e788c7a86316c6b4abaecde2485daa0f1ae1a4874fc1076554","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:13:16.462967Z","signature_b64":"RL5sYcDbzdTAVWadKopV5FlW8hOHoG3a/xr26AT8IBgtv/lRfXHR9JgiEs5dTQZ5juIrHHIyLRsXGuP28Z5KAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bf2be124de9909e788c7a86316c6b4abaecde2485daa0f1ae1a4874fc1076554","last_reissued_at":"2026-05-18T01:13:16.462491Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:13:16.462491Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.05671","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":"2026-05-18T01:13:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BCDgXnSmPqx/qKSFqE8j8+w7oDzrSXnjBdHuISS34shhaUJKq9143eiWq6nXxPoYRERmtH3jwMnepNwjPvw6DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:17:43.092752Z"},"content_sha256":"0d0a5f7d573c99e533817b4a2c5ca5bcf1f4086af85d6563068794142dd36e9a","schema_version":"1.0","event_id":"sha256:0d0a5f7d573c99e533817b4a2c5ca5bcf1f4086af85d6563068794142dd36e9a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:X4V6CJG6TEE6PCGHVBRRNRVUVO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Formation of globular clusters in atomic-cooling halos via rapid gas condensation and fragmentation during the epoch of reionization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Joakim Rosdahl, Renyue Cen, Sukyoung Yi, Taysun Kimm","submitted_at":"2015-10-19T20:21:25Z","abstract_excerpt":"We investigate the formation of metal-poor globular clusters (GCs) at the center of two dark matter halos with $M_{\\rm halo} \\sim4\\times10^7 M_\\odot$ at $z>10$ using cosmological radiation-hydrodynamics simulations. We find that very compact ($\\lesssim$ 1 pc) and massive ($\\sim6\\times10^5 M_\\odot$) clusters form rapidly when pristine gas collapses isothermally with the aid of efficient Ly$\\alpha$ emission during the transition from molecular-cooling halos to atomic-cooling halos. Because the local free-fall time of dense star-forming gas is very short ($\\ll 1\\,{\\rm Myr}$), a large fraction of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.05671","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":"2026-05-18T01:13:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uFZdbBb/3a8q+U+WzQKhELtLbb8IopvuTNrG3/ZGW0rcCp/J4u/fQUFtIsfUVRs71+YeL1mmLj15DSA7hfOzDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:17:43.093100Z"},"content_sha256":"9312b0e1e5d8910433a7ef85c016d9260c5209e857bf1ea2d465db8824e152ea","schema_version":"1.0","event_id":"sha256:9312b0e1e5d8910433a7ef85c016d9260c5209e857bf1ea2d465db8824e152ea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X4V6CJG6TEE6PCGHVBRRNRVUVO/bundle.json","state_url":"https://pith.science/pith/X4V6CJG6TEE6PCGHVBRRNRVUVO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X4V6CJG6TEE6PCGHVBRRNRVUVO/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":"2026-06-03T22:17:43Z","links":{"resolver":"https://pith.science/pith/X4V6CJG6TEE6PCGHVBRRNRVUVO","bundle":"https://pith.science/pith/X4V6CJG6TEE6PCGHVBRRNRVUVO/bundle.json","state":"https://pith.science/pith/X4V6CJG6TEE6PCGHVBRRNRVUVO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X4V6CJG6TEE6PCGHVBRRNRVUVO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:X4V6CJG6TEE6PCGHVBRRNRVUVO","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":"8e846facb7af1829fd8688dd9f1b60ea2e757f84be687f85427ebf62cec355df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-10-19T20:21:25Z","title_canon_sha256":"1378135066892e6aa80dd7615facf395b783f7370c884bd6a6d946e42d4808fa"},"schema_version":"1.0","source":{"id":"1510.05671","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.05671","created_at":"2026-05-18T01:13:16Z"},{"alias_kind":"arxiv_version","alias_value":"1510.05671v2","created_at":"2026-05-18T01:13:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.05671","created_at":"2026-05-18T01:13:16Z"},{"alias_kind":"pith_short_12","alias_value":"X4V6CJG6TEE6","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"X4V6CJG6TEE6PCGH","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"X4V6CJG6","created_at":"2026-05-18T12:29:47Z"}],"graph_snapshots":[{"event_id":"sha256:9312b0e1e5d8910433a7ef85c016d9260c5209e857bf1ea2d465db8824e152ea","target":"graph","created_at":"2026-05-18T01:13:16Z","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":"We investigate the formation of metal-poor globular clusters (GCs) at the center of two dark matter halos with $M_{\\rm halo} \\sim4\\times10^7 M_\\odot$ at $z>10$ using cosmological radiation-hydrodynamics simulations. We find that very compact ($\\lesssim$ 1 pc) and massive ($\\sim6\\times10^5 M_\\odot$) clusters form rapidly when pristine gas collapses isothermally with the aid of efficient Ly$\\alpha$ emission during the transition from molecular-cooling halos to atomic-cooling halos. Because the local free-fall time of dense star-forming gas is very short ($\\ll 1\\,{\\rm Myr}$), a large fraction of ","authors_text":"Joakim Rosdahl, Renyue Cen, Sukyoung Yi, Taysun Kimm","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-10-19T20:21:25Z","title":"Formation of globular clusters in atomic-cooling halos via rapid gas condensation and fragmentation during the epoch of reionization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.05671","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":"sha256:0d0a5f7d573c99e533817b4a2c5ca5bcf1f4086af85d6563068794142dd36e9a","target":"record","created_at":"2026-05-18T01:13:16Z","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":"8e846facb7af1829fd8688dd9f1b60ea2e757f84be687f85427ebf62cec355df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-10-19T20:21:25Z","title_canon_sha256":"1378135066892e6aa80dd7615facf395b783f7370c884bd6a6d946e42d4808fa"},"schema_version":"1.0","source":{"id":"1510.05671","kind":"arxiv","version":2}},"canonical_sha256":"bf2be124de9909e788c7a86316c6b4abaecde2485daa0f1ae1a4874fc1076554","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bf2be124de9909e788c7a86316c6b4abaecde2485daa0f1ae1a4874fc1076554","first_computed_at":"2026-05-18T01:13:16.462491Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:13:16.462491Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RL5sYcDbzdTAVWadKopV5FlW8hOHoG3a/xr26AT8IBgtv/lRfXHR9JgiEs5dTQZ5juIrHHIyLRsXGuP28Z5KAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:13:16.462967Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.05671","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0d0a5f7d573c99e533817b4a2c5ca5bcf1f4086af85d6563068794142dd36e9a","sha256:9312b0e1e5d8910433a7ef85c016d9260c5209e857bf1ea2d465db8824e152ea"],"state_sha256":"d3f0f0b875ad5f8622881feead533132944d46b076e1935b3169194f06dd9c31"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fdw8XJ9ovLZLJSGapP1VHkNkQD/mdJ4V8ltxmjOeHQitLwOYNvyI3anqNRJIPQTrxQI6VlPb22xOlfVqW5NVBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T22:17:43.095075Z","bundle_sha256":"354adb79e8234362eb49388184f0c13a28bc70a653d417f4c91f8ebd39030de1"}}