{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:FJDTGZLVFGU2NMLTBA5JBTDBF4","short_pith_number":"pith:FJDTGZLV","schema_version":"1.0","canonical_sha256":"2a4733657529a9a6b173083a90cc612f0155fdf965e37f67d9b5f84fd477be46","source":{"kind":"arxiv","id":"0802.3730","version":1},"attestation_state":"computed","paper":{"title":"The Lyman-alpha forest at redshifts 0.1 -- 1.6: good agreement between a large hydrodynamic simulation and HST spectra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"David Kirkman, David Tytler, Michael L. Norman, Pascal Paschos, Tridivesh Jena","submitted_at":"2008-02-26T01:46:27Z","abstract_excerpt":"We give a comprehensive statistical description of the Lyman-alpha absorption from the intergalactic medium in a hydrodynamic simulation at redshifts 0.1-1.6, the range of redshifts covered by HST spectra of QSOs. We use the ENZO code to make a 76 comoving Mpc cube simulation using 75 kpc cells, for a Hubble constant of 71 km/s/Mpc. The best prior work, by \\citet{dave99},used an SPH simulation in a 15.6 Mpc box with an effective resolution of 245 kpc and slightly different cosmological parameters. At redshifts z=2 this simulation is different from data. \\citet{tytler07b} found that the simulat"},"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":"0802.3730","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-02-26T01:46:27Z","cross_cats_sorted":[],"title_canon_sha256":"30a796f8548339a63ae7967324c1bed59f75ecde82f2dc76f7b7a4b9c28623b9","abstract_canon_sha256":"9076a7e594784139a730c92f77c2b6c5703846843ca9d45c761337dee29e4e85"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:16:00.862962Z","signature_b64":"rQ3UhzTpjRheqHsmlntt9dXqJ891xpYaF3l9b91b0YvTMFJiK97n9TO7wZ3EOtTswkNHiQnc64CmvEe0P56lBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2a4733657529a9a6b173083a90cc612f0155fdf965e37f67d9b5f84fd477be46","last_reissued_at":"2026-05-18T02:16:00.862586Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:16:00.862586Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Lyman-alpha forest at redshifts 0.1 -- 1.6: good agreement between a large hydrodynamic simulation and HST spectra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"David Kirkman, David Tytler, Michael L. Norman, Pascal Paschos, Tridivesh Jena","submitted_at":"2008-02-26T01:46:27Z","abstract_excerpt":"We give a comprehensive statistical description of the Lyman-alpha absorption from the intergalactic medium in a hydrodynamic simulation at redshifts 0.1-1.6, the range of redshifts covered by HST spectra of QSOs. We use the ENZO code to make a 76 comoving Mpc cube simulation using 75 kpc cells, for a Hubble constant of 71 km/s/Mpc. The best prior work, by \\citet{dave99},used an SPH simulation in a 15.6 Mpc box with an effective resolution of 245 kpc and slightly different cosmological parameters. At redshifts z=2 this simulation is different from data. \\citet{tytler07b} found that the simulat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0802.3730","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":""},"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":"0802.3730","created_at":"2026-05-18T02:16:00.862644+00:00"},{"alias_kind":"arxiv_version","alias_value":"0802.3730v1","created_at":"2026-05-18T02:16:00.862644+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0802.3730","created_at":"2026-05-18T02:16:00.862644+00:00"},{"alias_kind":"pith_short_12","alias_value":"FJDTGZLVFGU2","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_16","alias_value":"FJDTGZLVFGU2NMLT","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_8","alias_value":"FJDTGZLV","created_at":"2026-05-18T12:25:57.157939+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/FJDTGZLVFGU2NMLTBA5JBTDBF4","json":"https://pith.science/pith/FJDTGZLVFGU2NMLTBA5JBTDBF4.json","graph_json":"https://pith.science/api/pith-number/FJDTGZLVFGU2NMLTBA5JBTDBF4/graph.json","events_json":"https://pith.science/api/pith-number/FJDTGZLVFGU2NMLTBA5JBTDBF4/events.json","paper":"https://pith.science/paper/FJDTGZLV"},"agent_actions":{"view_html":"https://pith.science/pith/FJDTGZLVFGU2NMLTBA5JBTDBF4","download_json":"https://pith.science/pith/FJDTGZLVFGU2NMLTBA5JBTDBF4.json","view_paper":"https://pith.science/paper/FJDTGZLV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0802.3730&json=true","fetch_graph":"https://pith.science/api/pith-number/FJDTGZLVFGU2NMLTBA5JBTDBF4/graph.json","fetch_events":"https://pith.science/api/pith-number/FJDTGZLVFGU2NMLTBA5JBTDBF4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FJDTGZLVFGU2NMLTBA5JBTDBF4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FJDTGZLVFGU2NMLTBA5JBTDBF4/action/storage_attestation","attest_author":"https://pith.science/pith/FJDTGZLVFGU2NMLTBA5JBTDBF4/action/author_attestation","sign_citation":"https://pith.science/pith/FJDTGZLVFGU2NMLTBA5JBTDBF4/action/citation_signature","submit_replication":"https://pith.science/pith/FJDTGZLVFGU2NMLTBA5JBTDBF4/action/replication_record"}},"created_at":"2026-05-18T02:16:00.862644+00:00","updated_at":"2026-05-18T02:16:00.862644+00:00"}