{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:ZKDTDDW4TYUXWS54CSFKH2UPYO","short_pith_number":"pith:ZKDTDDW4","schema_version":"1.0","canonical_sha256":"ca87318edc9e297b4bbc148aa3ea8fc3a585ec3feda1c5f33792797a915e2396","source":{"kind":"arxiv","id":"2003.06245","version":1},"attestation_state":"computed","paper":{"title":"The Evolution of the Star-forming Interstellar Medium across Cosmic Time","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Amiel Sternberg, Linda J. Tacconi, Reinhard Genzel","submitted_at":"2020-03-13T12:52:53Z","abstract_excerpt":"Over the past decade increasingly robust estimates of the dense molecular gas content in galaxy populations between redshift 0 and the peak of cosmic galaxy/star formation from redshift 1-3 have become available. This rapid progress has been possible due to the advent of powerful ground-based, and space telescopes for combined study of several millimeter to far-IR, line or continuum tracers of the molecular gas and dust components. The main conclusions of this review are:\n  1. Star forming galaxies contained much more molecular gas at earlier cosmic epochs than at the present time.\n  2. The ga"},"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":"2003.06245","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-13T12:52:53Z","cross_cats_sorted":[],"title_canon_sha256":"31cc6ac610b0351f519d69d9d8602736eb287631aa51deed01e9b318a75a55b5","abstract_canon_sha256":"5d802bdfa171f440731a262518804322cc54c0fc076585d87e63847d922bed7a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:50:18.937476Z","signature_b64":"k/S2cBYQIOF9OJArInHpTL9wHnQXHsOKrPU91UeJFb3WprtdTKQjtJ1mIiVK5gU924qhlCHg70NNnH85MmzUDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca87318edc9e297b4bbc148aa3ea8fc3a585ec3feda1c5f33792797a915e2396","last_reissued_at":"2026-07-05T01:50:18.937062Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:50:18.937062Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Evolution of the Star-forming Interstellar Medium across Cosmic Time","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Amiel Sternberg, Linda J. Tacconi, Reinhard Genzel","submitted_at":"2020-03-13T12:52:53Z","abstract_excerpt":"Over the past decade increasingly robust estimates of the dense molecular gas content in galaxy populations between redshift 0 and the peak of cosmic galaxy/star formation from redshift 1-3 have become available. This rapid progress has been possible due to the advent of powerful ground-based, and space telescopes for combined study of several millimeter to far-IR, line or continuum tracers of the molecular gas and dust components. The main conclusions of this review are:\n  1. Star forming galaxies contained much more molecular gas at earlier cosmic epochs than at the present time.\n  2. The ga"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.06245","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/2003.06245/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2003.06245","created_at":"2026-07-05T01:50:18.937110+00:00"},{"alias_kind":"arxiv_version","alias_value":"2003.06245v1","created_at":"2026-07-05T01:50:18.937110+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.06245","created_at":"2026-07-05T01:50:18.937110+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZKDTDDW4TYUX","created_at":"2026-07-05T01:50:18.937110+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZKDTDDW4TYUXWS54","created_at":"2026-07-05T01:50:18.937110+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZKDTDDW4","created_at":"2026-07-05T01:50:18.937110+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2607.05326","citing_title":"Weak Evolution of Cosmic Atomic Hydrogen over the Past 4.5 Billion Years","ref_index":3,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ZKDTDDW4TYUXWS54CSFKH2UPYO","json":"https://pith.science/pith/ZKDTDDW4TYUXWS54CSFKH2UPYO.json","graph_json":"https://pith.science/api/pith-number/ZKDTDDW4TYUXWS54CSFKH2UPYO/graph.json","events_json":"https://pith.science/api/pith-number/ZKDTDDW4TYUXWS54CSFKH2UPYO/events.json","paper":"https://pith.science/paper/ZKDTDDW4"},"agent_actions":{"view_html":"https://pith.science/pith/ZKDTDDW4TYUXWS54CSFKH2UPYO","download_json":"https://pith.science/pith/ZKDTDDW4TYUXWS54CSFKH2UPYO.json","view_paper":"https://pith.science/paper/ZKDTDDW4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2003.06245&json=true","fetch_graph":"https://pith.science/api/pith-number/ZKDTDDW4TYUXWS54CSFKH2UPYO/graph.json","fetch_events":"https://pith.science/api/pith-number/ZKDTDDW4TYUXWS54CSFKH2UPYO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZKDTDDW4TYUXWS54CSFKH2UPYO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZKDTDDW4TYUXWS54CSFKH2UPYO/action/storage_attestation","attest_author":"https://pith.science/pith/ZKDTDDW4TYUXWS54CSFKH2UPYO/action/author_attestation","sign_citation":"https://pith.science/pith/ZKDTDDW4TYUXWS54CSFKH2UPYO/action/citation_signature","submit_replication":"https://pith.science/pith/ZKDTDDW4TYUXWS54CSFKH2UPYO/action/replication_record"}},"created_at":"2026-07-05T01:50:18.937110+00:00","updated_at":"2026-07-05T01:50:18.937110+00:00"}