{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1999:6SJRGLDZC2FSLNFOSFCKNLPCHS","short_pith_number":"pith:6SJRGLDZ","schema_version":"1.0","canonical_sha256":"f493132c79168b25b4ae9144a6ade23c8cf2cc6ade950b7d9f6a96b5f5417bdf","source":{"kind":"arxiv","id":"astro-ph/9904255","version":2},"attestation_state":"computed","paper":{"title":"Observational Signatures of the First Luminous Objects","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Siang Peng Oh (Princeton)","submitted_at":"1999-04-20T06:07:40Z","abstract_excerpt":"The next generation of astronomical instruments will be able to detect dense pockets of ionized gas created by the first luminous objects. The integrated free-free emission from ionized halos creates a spectral distortion of the Cosmic Microwave Background, greater than the distortion due to the reionized intergalactic medium. Its detection is well within the capabilities of the planned DIMES satellite. Ionized halos may also be imaged directly in free-free emission by the Square Kilometer Array. Bright halos will be detected as discrete sources, while residual unresolved sources can still be "},"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":"astro-ph/9904255","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-04-20T06:07:40Z","cross_cats_sorted":[],"title_canon_sha256":"9ac262c8569642271c89e12de39adcbb46b3b483f6a7a4916991913fd7e2c887","abstract_canon_sha256":"d4d9f234e83b29c988fc0968eef4e80509f1b7233db3bf3775095b3c1100bdc9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:10:54.617507Z","signature_b64":"TYMtrTqIE2j7BhKI7YldZeV1g54LHQPdFm+n6TqMFJEKkmRuvoztJ+6JXLUbIjfcdFHJuDNA+3AWsVRNL8rRDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f493132c79168b25b4ae9144a6ade23c8cf2cc6ade950b7d9f6a96b5f5417bdf","last_reissued_at":"2026-07-04T16:10:54.617082Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:10:54.617082Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Observational Signatures of the First Luminous Objects","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Siang Peng Oh (Princeton)","submitted_at":"1999-04-20T06:07:40Z","abstract_excerpt":"The next generation of astronomical instruments will be able to detect dense pockets of ionized gas created by the first luminous objects. The integrated free-free emission from ionized halos creates a spectral distortion of the Cosmic Microwave Background, greater than the distortion due to the reionized intergalactic medium. Its detection is well within the capabilities of the planned DIMES satellite. Ionized halos may also be imaged directly in free-free emission by the Square Kilometer Array. Bright halos will be detected as discrete sources, while residual unresolved sources can still be "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9904255","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/astro-ph/9904255/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":"astro-ph/9904255","created_at":"2026-07-04T16:10:54.617146+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9904255v2","created_at":"2026-07-04T16:10:54.617146+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9904255","created_at":"2026-07-04T16:10:54.617146+00:00"},{"alias_kind":"pith_short_12","alias_value":"6SJRGLDZC2FS","created_at":"2026-07-04T16:10:54.617146+00:00"},{"alias_kind":"pith_short_16","alias_value":"6SJRGLDZC2FSLNFO","created_at":"2026-07-04T16:10:54.617146+00:00"},{"alias_kind":"pith_short_8","alias_value":"6SJRGLDZ","created_at":"2026-07-04T16:10:54.617146+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"1909.01591","citing_title":"Microwave Spectro-Polarimetry of Matter and Radiation across Space and Time","ref_index":118,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6SJRGLDZC2FSLNFOSFCKNLPCHS","json":"https://pith.science/pith/6SJRGLDZC2FSLNFOSFCKNLPCHS.json","graph_json":"https://pith.science/api/pith-number/6SJRGLDZC2FSLNFOSFCKNLPCHS/graph.json","events_json":"https://pith.science/api/pith-number/6SJRGLDZC2FSLNFOSFCKNLPCHS/events.json","paper":"https://pith.science/paper/6SJRGLDZ"},"agent_actions":{"view_html":"https://pith.science/pith/6SJRGLDZC2FSLNFOSFCKNLPCHS","download_json":"https://pith.science/pith/6SJRGLDZC2FSLNFOSFCKNLPCHS.json","view_paper":"https://pith.science/paper/6SJRGLDZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/9904255&json=true","fetch_graph":"https://pith.science/api/pith-number/6SJRGLDZC2FSLNFOSFCKNLPCHS/graph.json","fetch_events":"https://pith.science/api/pith-number/6SJRGLDZC2FSLNFOSFCKNLPCHS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6SJRGLDZC2FSLNFOSFCKNLPCHS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6SJRGLDZC2FSLNFOSFCKNLPCHS/action/storage_attestation","attest_author":"https://pith.science/pith/6SJRGLDZC2FSLNFOSFCKNLPCHS/action/author_attestation","sign_citation":"https://pith.science/pith/6SJRGLDZC2FSLNFOSFCKNLPCHS/action/citation_signature","submit_replication":"https://pith.science/pith/6SJRGLDZC2FSLNFOSFCKNLPCHS/action/replication_record"}},"created_at":"2026-07-04T16:10:54.617146+00:00","updated_at":"2026-07-04T16:10:54.617146+00:00"}