{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:4NR62UEOM3GQJYLHEJET3KDIUX","short_pith_number":"pith:4NR62UEO","canonical_record":{"source":{"id":"1704.02988","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-10T18:00:09Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"15adbe9aac16d665cbc788ce220892d176b9b49d1faa197ed59cf85909673bcd","abstract_canon_sha256":"7b73593f0395006bcc558dabbfc949445fa22236da42c01087cea04bb9982b3f"},"schema_version":"1.0"},"canonical_sha256":"e363ed508e66cd04e16722493da868a5f7ddf45b446a2aa3d1c73cc5d99cf023","source":{"kind":"arxiv","id":"1704.02988","version":5},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.02988","created_at":"2026-05-18T00:21:41Z"},{"alias_kind":"arxiv_version","alias_value":"1704.02988v5","created_at":"2026-05-18T00:21:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.02988","created_at":"2026-05-18T00:21:41Z"},{"alias_kind":"pith_short_12","alias_value":"4NR62UEOM3GQ","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_16","alias_value":"4NR62UEOM3GQJYLH","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_8","alias_value":"4NR62UEO","created_at":"2026-05-18T12:31:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:4NR62UEOM3GQJYLHEJET3KDIUX","target":"record","payload":{"canonical_record":{"source":{"id":"1704.02988","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-10T18:00:09Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"15adbe9aac16d665cbc788ce220892d176b9b49d1faa197ed59cf85909673bcd","abstract_canon_sha256":"7b73593f0395006bcc558dabbfc949445fa22236da42c01087cea04bb9982b3f"},"schema_version":"1.0"},"canonical_sha256":"e363ed508e66cd04e16722493da868a5f7ddf45b446a2aa3d1c73cc5d99cf023","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:21:41.141839Z","signature_b64":"vVdTW72+fuaFzBASKVqtmNATs5fDsq9v78yewLxtiFDk7fh8ioPLLXFM45eBNs9+wu7oj/3ln+vxX5A6kJD8BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e363ed508e66cd04e16722493da868a5f7ddf45b446a2aa3d1c73cc5d99cf023","last_reissued_at":"2026-05-18T00:21:41.141087Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:21:41.141087Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.02988","source_version":5,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:21:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8Jj8Psf7x1dvoLvQJYfDlXXKacAegyFnt6X+7fKjv9C+Mju2B+sTz52+M9D3uWRfHyaFmtpfOAq39WqTVDqSDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T03:35:58.536820Z"},"content_sha256":"67f6591aa2f18d1ed851f4f837bc8284010bb5ca22a9ad04b4a1c33fb7fc05c8","schema_version":"1.0","event_id":"sha256:67f6591aa2f18d1ed851f4f837bc8284010bb5ca22a9ad04b4a1c33fb7fc05c8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:4NR62UEOM3GQJYLHEJET3KDIUX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Formation of Globular Cluster Candidates in Merging Proto-galaxies at High Redshift: A View from the FIRE Cosmological Simulations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"(10) Northwestern University, (11) Center for Astrophysics, (12) Canadian Institute for Theoretical Astrophysics, 13) ((1) Kavli Institute for Particle Astrophysics, (13) Canada Research Chair in Astrophysics), 2, (2) Stanford University, 3, (3) California Institute of Technology, 4), (4) Einstein Fellow, (5) Center for Computational Astrophysics, 6), (6) Harvard-Smithsonian Center for Astrophysics, 7, (7) Carnegie Observatories, 8, (8) University of California, 9), (9) Caltech-Carnegie Fellow, Andrew Wetzel (3, Christopher C. Hayward (5, Claude-Andr\\'e Faucher-Gigu\\`ere (10), Cosmology, Davis, Du\\v{s}an Kere\\v{s} (11), Flatiron Institute, Ji-hoon Kim (1, Michael Y. Grudi\\'c (3), Norman Murray (12, Philip F. Hopkins (3), San Diego, Shea Garrison-Kimmel (3, SLAC National Accelerator Laboratory, Space Sciences, University of California, University of Toronto, Xiangcheng Ma (3)","submitted_at":"2017-04-10T18:00:09Z","abstract_excerpt":"Using a state-of-the-art cosmological simulation of merging proto-galaxies at high redshift from the FIRE project, with explicit treatments of star formation and stellar feedback in the interstellar medium, we investigate the formation of star clusters and examine one of the formation hypothesis of present-day metal-poor globular clusters. We find that frequent mergers in high-redshift proto-galaxies could provide a fertile environment to produce long-lasting bound star clusters. The violent merger event disturbs the gravitational potential and pushes a large gas mass of ~> 1e5-6 Msun collecti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.02988","kind":"arxiv","version":5},"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":"2026-05-18T00:21:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"neQp3IL0z31+zrrNNFk3XAHS7pdj55YWrBe/Jqz9ScJiS3m3Pw21EwcnxrGUxxO1leo7QtvUOofqp0kDEy59CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T03:35:58.537518Z"},"content_sha256":"1c4c845af31166fcb0d2b7354304b9e0447048483f8750bbc67b7241e7933322","schema_version":"1.0","event_id":"sha256:1c4c845af31166fcb0d2b7354304b9e0447048483f8750bbc67b7241e7933322"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4NR62UEOM3GQJYLHEJET3KDIUX/bundle.json","state_url":"https://pith.science/pith/4NR62UEOM3GQJYLHEJET3KDIUX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4NR62UEOM3GQJYLHEJET3KDIUX/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":"2026-05-25T03:35:58Z","links":{"resolver":"https://pith.science/pith/4NR62UEOM3GQJYLHEJET3KDIUX","bundle":"https://pith.science/pith/4NR62UEOM3GQJYLHEJET3KDIUX/bundle.json","state":"https://pith.science/pith/4NR62UEOM3GQJYLHEJET3KDIUX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4NR62UEOM3GQJYLHEJET3KDIUX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:4NR62UEOM3GQJYLHEJET3KDIUX","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":"7b73593f0395006bcc558dabbfc949445fa22236da42c01087cea04bb9982b3f","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-10T18:00:09Z","title_canon_sha256":"15adbe9aac16d665cbc788ce220892d176b9b49d1faa197ed59cf85909673bcd"},"schema_version":"1.0","source":{"id":"1704.02988","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.02988","created_at":"2026-05-18T00:21:41Z"},{"alias_kind":"arxiv_version","alias_value":"1704.02988v5","created_at":"2026-05-18T00:21:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.02988","created_at":"2026-05-18T00:21:41Z"},{"alias_kind":"pith_short_12","alias_value":"4NR62UEOM3GQ","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_16","alias_value":"4NR62UEOM3GQJYLH","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_8","alias_value":"4NR62UEO","created_at":"2026-05-18T12:31:00Z"}],"graph_snapshots":[{"event_id":"sha256:1c4c845af31166fcb0d2b7354304b9e0447048483f8750bbc67b7241e7933322","target":"graph","created_at":"2026-05-18T00:21:41Z","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":"Using a state-of-the-art cosmological simulation of merging proto-galaxies at high redshift from the FIRE project, with explicit treatments of star formation and stellar feedback in the interstellar medium, we investigate the formation of star clusters and examine one of the formation hypothesis of present-day metal-poor globular clusters. We find that frequent mergers in high-redshift proto-galaxies could provide a fertile environment to produce long-lasting bound star clusters. The violent merger event disturbs the gravitational potential and pushes a large gas mass of ~> 1e5-6 Msun collecti","authors_text":"(10) Northwestern University, (11) Center for Astrophysics, (12) Canadian Institute for Theoretical Astrophysics, 13) ((1) Kavli Institute for Particle Astrophysics, (13) Canada Research Chair in Astrophysics), 2, (2) Stanford University, 3, (3) California Institute of Technology, 4), (4) Einstein Fellow, (5) Center for Computational Astrophysics, 6), (6) Harvard-Smithsonian Center for Astrophysics, 7, (7) Carnegie Observatories, 8, (8) University of California, 9), (9) Caltech-Carnegie Fellow, Andrew Wetzel (3, Christopher C. Hayward (5, Claude-Andr\\'e Faucher-Gigu\\`ere (10), Cosmology, Davis, Du\\v{s}an Kere\\v{s} (11), Flatiron Institute, Ji-hoon Kim (1, Michael Y. Grudi\\'c (3), Norman Murray (12, Philip F. Hopkins (3), San Diego, Shea Garrison-Kimmel (3, SLAC National Accelerator Laboratory, Space Sciences, University of California, University of Toronto, Xiangcheng Ma (3)","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-10T18:00:09Z","title":"Formation of Globular Cluster Candidates in Merging Proto-galaxies at High Redshift: A View from the FIRE Cosmological Simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.02988","kind":"arxiv","version":5},"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":"sha256:67f6591aa2f18d1ed851f4f837bc8284010bb5ca22a9ad04b4a1c33fb7fc05c8","target":"record","created_at":"2026-05-18T00:21:41Z","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":"7b73593f0395006bcc558dabbfc949445fa22236da42c01087cea04bb9982b3f","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-10T18:00:09Z","title_canon_sha256":"15adbe9aac16d665cbc788ce220892d176b9b49d1faa197ed59cf85909673bcd"},"schema_version":"1.0","source":{"id":"1704.02988","kind":"arxiv","version":5}},"canonical_sha256":"e363ed508e66cd04e16722493da868a5f7ddf45b446a2aa3d1c73cc5d99cf023","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e363ed508e66cd04e16722493da868a5f7ddf45b446a2aa3d1c73cc5d99cf023","first_computed_at":"2026-05-18T00:21:41.141087Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:21:41.141087Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vVdTW72+fuaFzBASKVqtmNATs5fDsq9v78yewLxtiFDk7fh8ioPLLXFM45eBNs9+wu7oj/3ln+vxX5A6kJD8BA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:21:41.141839Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.02988","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:67f6591aa2f18d1ed851f4f837bc8284010bb5ca22a9ad04b4a1c33fb7fc05c8","sha256:1c4c845af31166fcb0d2b7354304b9e0447048483f8750bbc67b7241e7933322"],"state_sha256":"a36d96104729bb7c6f3659e438bca2e2f9b04f70cf9cf8fe1c34936e33a28e3e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1U+onVBB9e2JGCX5ssPeOl90rTuM32RCHLy8LpE4Nb9ERy2Z477sgXUKs3TXNXWKzqeRlPgsTLBQwYa1DnXuBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T03:35:58.541117Z","bundle_sha256":"d89c2c9c290ecf0ee4484693e52b3ada4df9240e4357b8bb5d65423fb9865a16"}}