{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:CWH2AGRBPG6I4XPMWLTBQRWLTN","short_pith_number":"pith:CWH2AGRB","schema_version":"1.0","canonical_sha256":"158fa01a2179bc8e5decb2e61846cb9b6b106778561fa53ef2190bf994a2b76c","source":{"kind":"arxiv","id":"2606.10169","version":1},"attestation_state":"computed","paper":{"title":"Benchmark-Tight Approximation Ratio of Simple Mechanism for a Unit-Demand Buyer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.GT","authors_text":"Pinyan Lu, Yaonan Jin","submitted_at":"2026-06-08T21:04:37Z","abstract_excerpt":"We study revenue maximization in the unit-demand single-buyer setting. Our main result is that \\textsf{Uniform-Ironed-Virtual-Value Item Pricing} guarantees a {\\em tight} $3$-approximation to the \\textsf{Duality Relaxation Benchmark} [Chawla-Malec-Sivan, EC'10/GEB'15; Cai-Devanur-Weinberg, STOC'16/ SICOMP'21], breaking the barrier of $4$ since [Chawla-Hartline-Malec-Sivan, STOC'10; Chawla-Malec-Sivan, EC'10/GEB'15]. To our knowledge, this is the first {\\em benchmark-tight} revenue guarantee of any simple multi-item mechanism.\n  Technically, all previous works employ \\textsf{Myerson Auction} as"},"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":"2606.10169","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2026-06-08T21:04:37Z","cross_cats_sorted":[],"title_canon_sha256":"e0240e88d9453d649703091426e25b0a954c0f5eda08c439b88a23ce0faed8bf","abstract_canon_sha256":"02cdd5673e1d2405cafe9fe34d3eb3a1849f6099f8e6d5042b07ed5749617420"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-10T01:08:57.891936Z","signature_b64":"3khfClOM9yHvA3jXiOBPPCQx6uVStxhivmt3xPIXgCTRlzbdnLUJUt65XqPyeHBUEVG6fFuMiNZfcBjscvCZBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"158fa01a2179bc8e5decb2e61846cb9b6b106778561fa53ef2190bf994a2b76c","last_reissued_at":"2026-06-10T01:08:57.891179Z","signature_status":"signed_v1","first_computed_at":"2026-06-10T01:08:57.891179Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Benchmark-Tight Approximation Ratio of Simple Mechanism for a Unit-Demand Buyer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.GT","authors_text":"Pinyan Lu, Yaonan Jin","submitted_at":"2026-06-08T21:04:37Z","abstract_excerpt":"We study revenue maximization in the unit-demand single-buyer setting. Our main result is that \\textsf{Uniform-Ironed-Virtual-Value Item Pricing} guarantees a {\\em tight} $3$-approximation to the \\textsf{Duality Relaxation Benchmark} [Chawla-Malec-Sivan, EC'10/GEB'15; Cai-Devanur-Weinberg, STOC'16/ SICOMP'21], breaking the barrier of $4$ since [Chawla-Hartline-Malec-Sivan, STOC'10; Chawla-Malec-Sivan, EC'10/GEB'15]. To our knowledge, this is the first {\\em benchmark-tight} revenue guarantee of any simple multi-item mechanism.\n  Technically, all previous works employ \\textsf{Myerson Auction} as"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.10169","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/2606.10169/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":"2606.10169","created_at":"2026-06-10T01:08:57.891292+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.10169v1","created_at":"2026-06-10T01:08:57.891292+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.10169","created_at":"2026-06-10T01:08:57.891292+00:00"},{"alias_kind":"pith_short_12","alias_value":"CWH2AGRBPG6I","created_at":"2026-06-10T01:08:57.891292+00:00"},{"alias_kind":"pith_short_16","alias_value":"CWH2AGRBPG6I4XPM","created_at":"2026-06-10T01:08:57.891292+00:00"},{"alias_kind":"pith_short_8","alias_value":"CWH2AGRB","created_at":"2026-06-10T01:08:57.891292+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/CWH2AGRBPG6I4XPMWLTBQRWLTN","json":"https://pith.science/pith/CWH2AGRBPG6I4XPMWLTBQRWLTN.json","graph_json":"https://pith.science/api/pith-number/CWH2AGRBPG6I4XPMWLTBQRWLTN/graph.json","events_json":"https://pith.science/api/pith-number/CWH2AGRBPG6I4XPMWLTBQRWLTN/events.json","paper":"https://pith.science/paper/CWH2AGRB"},"agent_actions":{"view_html":"https://pith.science/pith/CWH2AGRBPG6I4XPMWLTBQRWLTN","download_json":"https://pith.science/pith/CWH2AGRBPG6I4XPMWLTBQRWLTN.json","view_paper":"https://pith.science/paper/CWH2AGRB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.10169&json=true","fetch_graph":"https://pith.science/api/pith-number/CWH2AGRBPG6I4XPMWLTBQRWLTN/graph.json","fetch_events":"https://pith.science/api/pith-number/CWH2AGRBPG6I4XPMWLTBQRWLTN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CWH2AGRBPG6I4XPMWLTBQRWLTN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CWH2AGRBPG6I4XPMWLTBQRWLTN/action/storage_attestation","attest_author":"https://pith.science/pith/CWH2AGRBPG6I4XPMWLTBQRWLTN/action/author_attestation","sign_citation":"https://pith.science/pith/CWH2AGRBPG6I4XPMWLTBQRWLTN/action/citation_signature","submit_replication":"https://pith.science/pith/CWH2AGRBPG6I4XPMWLTBQRWLTN/action/replication_record"}},"created_at":"2026-06-10T01:08:57.891292+00:00","updated_at":"2026-06-10T01:08:57.891292+00:00"}