{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:SNH57I3I524DKBKMOR54DBKBHN","short_pith_number":"pith:SNH57I3I","schema_version":"1.0","canonical_sha256":"934fdfa368eeb835054c747bc185413b5e9909c7251c13e000c6e7f3df4bb86f","source":{"kind":"arxiv","id":"1312.0046","version":3},"attestation_state":"computed","paper":{"title":"Infrared-Faint Radio Sources are at high redshifts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Andreas Herzog, Enno Middelberg, Lee R. Spitler, Quentin A. Parker, Ray P. Norris, Rob Sharp","submitted_at":"2013-11-30T00:28:59Z","abstract_excerpt":"Context: Infrared-Faint Radio Sources (IFRS) are characterised by relatively high radio flux densities and associated faint or even absent infrared and optical counterparts. The resulting extremely high radio-to-infrared flux density ratios up to several thousands were previously known only for High-redshift Radio Galaxies (HzRGs), suggesting a link between the two classes of object. Prior to this work, no redshift was known for any IFRS in the Australia Telescope Large Area Survey (ATLAS) fields which would help to put IFRS in the context of other classes of object, especially of HzRGs. Aims:"},"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":"1312.0046","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-30T00:28:59Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"f79ab28a5c195f656fa8bf503c420dfb9e09eb59bfea5b5339f4053b34ef8dbe","abstract_canon_sha256":"20db4ffb88a8c6876f3271917402d147b1b2ae2446193ef11e5cfed0dafd3953"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:43:36.702136Z","signature_b64":"C6ysJMNtHSomaB87BB0m23oH/r8T1bMKJCShq4lpVLUGW5G8+OgA0VkgE63z+gRdYwLvUB+afzpdDfZ5yZ+BCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"934fdfa368eeb835054c747bc185413b5e9909c7251c13e000c6e7f3df4bb86f","last_reissued_at":"2026-05-18T02:43:36.701445Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:43:36.701445Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Infrared-Faint Radio Sources are at high redshifts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Andreas Herzog, Enno Middelberg, Lee R. Spitler, Quentin A. Parker, Ray P. Norris, Rob Sharp","submitted_at":"2013-11-30T00:28:59Z","abstract_excerpt":"Context: Infrared-Faint Radio Sources (IFRS) are characterised by relatively high radio flux densities and associated faint or even absent infrared and optical counterparts. The resulting extremely high radio-to-infrared flux density ratios up to several thousands were previously known only for High-redshift Radio Galaxies (HzRGs), suggesting a link between the two classes of object. Prior to this work, no redshift was known for any IFRS in the Australia Telescope Large Area Survey (ATLAS) fields which would help to put IFRS in the context of other classes of object, especially of HzRGs. Aims:"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.0046","kind":"arxiv","version":3},"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":"1312.0046","created_at":"2026-05-18T02:43:36.701541+00:00"},{"alias_kind":"arxiv_version","alias_value":"1312.0046v3","created_at":"2026-05-18T02:43:36.701541+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.0046","created_at":"2026-05-18T02:43:36.701541+00:00"},{"alias_kind":"pith_short_12","alias_value":"SNH57I3I524D","created_at":"2026-05-18T12:27:59.945178+00:00"},{"alias_kind":"pith_short_16","alias_value":"SNH57I3I524DKBKM","created_at":"2026-05-18T12:27:59.945178+00:00"},{"alias_kind":"pith_short_8","alias_value":"SNH57I3I","created_at":"2026-05-18T12:27:59.945178+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/SNH57I3I524DKBKMOR54DBKBHN","json":"https://pith.science/pith/SNH57I3I524DKBKMOR54DBKBHN.json","graph_json":"https://pith.science/api/pith-number/SNH57I3I524DKBKMOR54DBKBHN/graph.json","events_json":"https://pith.science/api/pith-number/SNH57I3I524DKBKMOR54DBKBHN/events.json","paper":"https://pith.science/paper/SNH57I3I"},"agent_actions":{"view_html":"https://pith.science/pith/SNH57I3I524DKBKMOR54DBKBHN","download_json":"https://pith.science/pith/SNH57I3I524DKBKMOR54DBKBHN.json","view_paper":"https://pith.science/paper/SNH57I3I","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1312.0046&json=true","fetch_graph":"https://pith.science/api/pith-number/SNH57I3I524DKBKMOR54DBKBHN/graph.json","fetch_events":"https://pith.science/api/pith-number/SNH57I3I524DKBKMOR54DBKBHN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SNH57I3I524DKBKMOR54DBKBHN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SNH57I3I524DKBKMOR54DBKBHN/action/storage_attestation","attest_author":"https://pith.science/pith/SNH57I3I524DKBKMOR54DBKBHN/action/author_attestation","sign_citation":"https://pith.science/pith/SNH57I3I524DKBKMOR54DBKBHN/action/citation_signature","submit_replication":"https://pith.science/pith/SNH57I3I524DKBKMOR54DBKBHN/action/replication_record"}},"created_at":"2026-05-18T02:43:36.701541+00:00","updated_at":"2026-05-18T02:43:36.701541+00:00"}