{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:EI2TSGBPLUPAMLBB6EU5OFXOBC","short_pith_number":"pith:EI2TSGBP","schema_version":"1.0","canonical_sha256":"223539182f5d1e062c21f129d716ee08964eea1d5781ffe82e50743a2cf365b7","source":{"kind":"arxiv","id":"2010.06617","version":2},"attestation_state":"computed","paper":{"title":"HI 21-centimetre emission from an ensemble of galaxies at an average redshift of one","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Aditya Chowdhury, Jayaram Chengalur, K.S. Dwarakanath, Nissim Kanekar, Shiv Sethi","submitted_at":"2020-10-13T18:17:36Z","abstract_excerpt":"The baryonic processes in galaxy evolution include gas infall onto galaxies to form neutral atomic hydrogen (HI), the conversion of HI to the molecular state (H$_2$), and, finally, the conversion of H$_2$ to stars. Understanding galaxy evolution thus requires understanding the evolution of both the stars, and the neutral atomic and molecular gas, the primary fuel for star-formation, in galaxies. For the stars, the cosmic star-formation rate density is known to peak in the redshift range $z \\approx 1-3$, and to decline by an order of magnitude over the next $\\approx 10$ billion years; the cause"},"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":"2010.06617","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-10-13T18:17:36Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"5575cfd81f46e09241276d0f44eae296ffc7c09ed3eba73e4f519e8e8f1d1a9a","abstract_canon_sha256":"be4b7dd29178e34e6de556ba102799787c61b51d17bcd55fd29452c8d3783ec8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:45:55.408469Z","signature_b64":"+gCxPyPZpCVGGIDScKj8ZIkVQt6MdhUvog7f5Iw0kt2YCcJo2KVx0tKpUJI3ESHjjL/hm4mT072q/dOFHC/pBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"223539182f5d1e062c21f129d716ee08964eea1d5781ffe82e50743a2cf365b7","last_reissued_at":"2026-07-05T04:45:55.408055Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:45:55.408055Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"HI 21-centimetre emission from an ensemble of galaxies at an average redshift of one","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Aditya Chowdhury, Jayaram Chengalur, K.S. Dwarakanath, Nissim Kanekar, Shiv Sethi","submitted_at":"2020-10-13T18:17:36Z","abstract_excerpt":"The baryonic processes in galaxy evolution include gas infall onto galaxies to form neutral atomic hydrogen (HI), the conversion of HI to the molecular state (H$_2$), and, finally, the conversion of H$_2$ to stars. Understanding galaxy evolution thus requires understanding the evolution of both the stars, and the neutral atomic and molecular gas, the primary fuel for star-formation, in galaxies. For the stars, the cosmic star-formation rate density is known to peak in the redshift range $z \\approx 1-3$, and to decline by an order of magnitude over the next $\\approx 10$ billion years; the cause"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.06617","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2010.06617/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":"2010.06617","created_at":"2026-07-05T04:45:55.408109+00:00"},{"alias_kind":"arxiv_version","alias_value":"2010.06617v2","created_at":"2026-07-05T04:45:55.408109+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.06617","created_at":"2026-07-05T04:45:55.408109+00:00"},{"alias_kind":"pith_short_12","alias_value":"EI2TSGBPLUPA","created_at":"2026-07-05T04:45:55.408109+00:00"},{"alias_kind":"pith_short_16","alias_value":"EI2TSGBPLUPAMLBB","created_at":"2026-07-05T04:45:55.408109+00:00"},{"alias_kind":"pith_short_8","alias_value":"EI2TSGBP","created_at":"2026-07-05T04:45:55.408109+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":2,"sample":[{"citing_arxiv_id":"2607.06143","citing_title":"Deep far-UV observations of the ELAIS N1 field using AstroSat: Source catalogue, spectral energy distribution modelling and star formation","ref_index":218,"is_internal_anchor":true},{"citing_arxiv_id":"2607.05326","citing_title":"Weak Evolution of Cosmic Atomic Hydrogen over the Past 4.5 Billion Years","ref_index":22,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/EI2TSGBPLUPAMLBB6EU5OFXOBC","json":"https://pith.science/pith/EI2TSGBPLUPAMLBB6EU5OFXOBC.json","graph_json":"https://pith.science/api/pith-number/EI2TSGBPLUPAMLBB6EU5OFXOBC/graph.json","events_json":"https://pith.science/api/pith-number/EI2TSGBPLUPAMLBB6EU5OFXOBC/events.json","paper":"https://pith.science/paper/EI2TSGBP"},"agent_actions":{"view_html":"https://pith.science/pith/EI2TSGBPLUPAMLBB6EU5OFXOBC","download_json":"https://pith.science/pith/EI2TSGBPLUPAMLBB6EU5OFXOBC.json","view_paper":"https://pith.science/paper/EI2TSGBP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2010.06617&json=true","fetch_graph":"https://pith.science/api/pith-number/EI2TSGBPLUPAMLBB6EU5OFXOBC/graph.json","fetch_events":"https://pith.science/api/pith-number/EI2TSGBPLUPAMLBB6EU5OFXOBC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EI2TSGBPLUPAMLBB6EU5OFXOBC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EI2TSGBPLUPAMLBB6EU5OFXOBC/action/storage_attestation","attest_author":"https://pith.science/pith/EI2TSGBPLUPAMLBB6EU5OFXOBC/action/author_attestation","sign_citation":"https://pith.science/pith/EI2TSGBPLUPAMLBB6EU5OFXOBC/action/citation_signature","submit_replication":"https://pith.science/pith/EI2TSGBPLUPAMLBB6EU5OFXOBC/action/replication_record"}},"created_at":"2026-07-05T04:45:55.408109+00:00","updated_at":"2026-07-05T04:45:55.408109+00:00"}