{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:U6AFP2BZQRETBFNGUBOL5AIWO4","short_pith_number":"pith:U6AFP2BZ","schema_version":"1.0","canonical_sha256":"a78057e83984493095a6a05cbe8116773658ef7563154284412e52578c6342b9","source":{"kind":"arxiv","id":"1705.01634","version":2},"attestation_state":"computed","paper":{"title":"Galaxy Protoclusters as Drivers of Cosmic Star-Formation History in the First 2 Gyr","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Bruno Henriques, Karl Gebhardt, Roderik A. Overzier, Yi-Kuan Chiang","submitted_at":"2017-05-03T21:42:50Z","abstract_excerpt":"Present-day clusters are massive halos containing mostly quiescent galaxies, while distant protoclusters are extended structures containing numerous star-forming galaxies. We investigate the implications of this fundamental change in a cosmological context using a set of N-body simulations and semi-analytic models. We find that the fraction of the cosmic volume occupied by all (proto)clusters increases by nearly three orders of magnitude from z=0 to z=7. We show that (proto)cluster galaxies are an important, and even dominant population at high redshift, as their expected contribution to the c"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1705.01634","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-03T21:42:50Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"a703e95eab006e4c6f95fd8049ea56b66fc8f5b49e957cfdeaee9e707adccc44","abstract_canon_sha256":"1f7e77d1db10a97b821218b8ef3f53b453cb1125b2cd7fa65593d39d94894ff6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:38:53.024212Z","signature_b64":"c59a9o8fBYWPJnZ3SXtirpW5rxoT0xslSllFUGZIPdiMyD0MXAhj76s2z0Iaz3hK+hwuq5OIckBtjmySUC53Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a78057e83984493095a6a05cbe8116773658ef7563154284412e52578c6342b9","last_reissued_at":"2026-05-18T00:38:53.023756Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:38:53.023756Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Galaxy Protoclusters as Drivers of Cosmic Star-Formation History in the First 2 Gyr","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Bruno Henriques, Karl Gebhardt, Roderik A. Overzier, Yi-Kuan Chiang","submitted_at":"2017-05-03T21:42:50Z","abstract_excerpt":"Present-day clusters are massive halos containing mostly quiescent galaxies, while distant protoclusters are extended structures containing numerous star-forming galaxies. We investigate the implications of this fundamental change in a cosmological context using a set of N-body simulations and semi-analytic models. We find that the fraction of the cosmic volume occupied by all (proto)clusters increases by nearly three orders of magnitude from z=0 to z=7. We show that (proto)cluster galaxies are an important, and even dominant population at high redshift, as their expected contribution to the c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.01634","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1705.01634","created_at":"2026-05-18T00:38:53.023827+00:00"},{"alias_kind":"arxiv_version","alias_value":"1705.01634v2","created_at":"2026-05-18T00:38:53.023827+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.01634","created_at":"2026-05-18T00:38:53.023827+00:00"},{"alias_kind":"pith_short_12","alias_value":"U6AFP2BZQRET","created_at":"2026-05-18T12:31:46.661854+00:00"},{"alias_kind":"pith_short_16","alias_value":"U6AFP2BZQRETBFNG","created_at":"2026-05-18T12:31:46.661854+00:00"},{"alias_kind":"pith_short_8","alias_value":"U6AFP2BZ","created_at":"2026-05-18T12:31:46.661854+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/U6AFP2BZQRETBFNGUBOL5AIWO4","json":"https://pith.science/pith/U6AFP2BZQRETBFNGUBOL5AIWO4.json","graph_json":"https://pith.science/api/pith-number/U6AFP2BZQRETBFNGUBOL5AIWO4/graph.json","events_json":"https://pith.science/api/pith-number/U6AFP2BZQRETBFNGUBOL5AIWO4/events.json","paper":"https://pith.science/paper/U6AFP2BZ"},"agent_actions":{"view_html":"https://pith.science/pith/U6AFP2BZQRETBFNGUBOL5AIWO4","download_json":"https://pith.science/pith/U6AFP2BZQRETBFNGUBOL5AIWO4.json","view_paper":"https://pith.science/paper/U6AFP2BZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1705.01634&json=true","fetch_graph":"https://pith.science/api/pith-number/U6AFP2BZQRETBFNGUBOL5AIWO4/graph.json","fetch_events":"https://pith.science/api/pith-number/U6AFP2BZQRETBFNGUBOL5AIWO4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/U6AFP2BZQRETBFNGUBOL5AIWO4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/U6AFP2BZQRETBFNGUBOL5AIWO4/action/storage_attestation","attest_author":"https://pith.science/pith/U6AFP2BZQRETBFNGUBOL5AIWO4/action/author_attestation","sign_citation":"https://pith.science/pith/U6AFP2BZQRETBFNGUBOL5AIWO4/action/citation_signature","submit_replication":"https://pith.science/pith/U6AFP2BZQRETBFNGUBOL5AIWO4/action/replication_record"}},"created_at":"2026-05-18T00:38:53.023827+00:00","updated_at":"2026-05-18T00:38:53.023827+00:00"}