{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:IQ3PFI6BAH5GEVRO6UOAST5DIW","short_pith_number":"pith:IQ3PFI6B","canonical_record":{"source":{"id":"1109.1053","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2011-09-06T04:10:13Z","cross_cats_sorted":["cs.DS"],"title_canon_sha256":"d2d532d77d3db1471c09c04322a3d821a6b181951b0aa41106e66a95dcc28a44","abstract_canon_sha256":"8d5f3cfd8be5347dc1df4e59e1dd6305392c9c7c98f49718ecbc5b74cd3fb69f"},"schema_version":"1.0"},"canonical_sha256":"4436f2a3c101fa62562ef51c094fa3458f6d91ea920aec6d72b006e1ccdb613e","source":{"kind":"arxiv","id":"1109.1053","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.1053","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"arxiv_version","alias_value":"1109.1053v1","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.1053","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"pith_short_12","alias_value":"IQ3PFI6BAH5G","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"IQ3PFI6BAH5GEVRO","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"IQ3PFI6B","created_at":"2026-05-18T12:26:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:IQ3PFI6BAH5GEVRO6UOAST5DIW","target":"record","payload":{"canonical_record":{"source":{"id":"1109.1053","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2011-09-06T04:10:13Z","cross_cats_sorted":["cs.DS"],"title_canon_sha256":"d2d532d77d3db1471c09c04322a3d821a6b181951b0aa41106e66a95dcc28a44","abstract_canon_sha256":"8d5f3cfd8be5347dc1df4e59e1dd6305392c9c7c98f49718ecbc5b74cd3fb69f"},"schema_version":"1.0"},"canonical_sha256":"4436f2a3c101fa62562ef51c094fa3458f6d91ea920aec6d72b006e1ccdb613e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:14:05.511778Z","signature_b64":"RzGRAGRmttQgOSVlnyjM+D2avcE16A2i45PhoEa5QCti9pgA04cJoj+10DlMXsDTdrlB4PqpgNSOQRhnOGZdAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4436f2a3c101fa62562ef51c094fa3458f6d91ea920aec6d72b006e1ccdb613e","last_reissued_at":"2026-05-18T04:14:05.511123Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:14:05.511123Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.1053","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:14:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lyZnZrD57Ca67cEpWtywZjwNTbDhyLuSMxz+HGR8XdiXVa8IBdm0DbitvarZzXdT1lxUOGB7UuXM4XyArBXIDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T14:37:26.200691Z"},"content_sha256":"5d466ca15601eb178a50f17a971e776e9ef5cc606187803c65b152c84e0c009e","schema_version":"1.0","event_id":"sha256:5d466ca15601eb178a50f17a971e776e9ef5cc606187803c65b152c84e0c009e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:IQ3PFI6BAH5GEVRO6UOAST5DIW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An approximately truthful-in-expectation mechanism for combinatorial auctions using value queries","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DS"],"primary_cat":"cs.GT","authors_text":"Jan Vondrak, Qiqi Yan, Shaddin Dughmi, Tim Roughgarden","submitted_at":"2011-09-06T04:10:13Z","abstract_excerpt":"This manuscript presents an alternative implementation of the truthful-in-expectation mechanism of Dughmi, Roughgarden and Yan for combinatorial auctions with weighted-matroid-rank-sum valuations. The new implementation uses only value queries and is approximately truthful-in-expectation, in the sense that by reporting truthfully each agent maximizes his utility within a multiplicative 1-o(1) factor. It still provides an optimal (1-1/e-o(1))-approximation in social welfare. We achieve this by first presenting an approximately maximal-in-distributional-range allocation rule and then showing a b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.1053","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:14:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lYJ57O+65TuoTl0LhWZtnqw0U+BEW+7SswB5Z2GNF5QKOasnKggTONwOG6RqpAoFxiCsv3uda/PLPRGCN0TsAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T14:37:26.201370Z"},"content_sha256":"371c6c973764de8518660003e599a498036805686b9a6dbfc540de5d8b68231d","schema_version":"1.0","event_id":"sha256:371c6c973764de8518660003e599a498036805686b9a6dbfc540de5d8b68231d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IQ3PFI6BAH5GEVRO6UOAST5DIW/bundle.json","state_url":"https://pith.science/pith/IQ3PFI6BAH5GEVRO6UOAST5DIW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IQ3PFI6BAH5GEVRO6UOAST5DIW/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-26T14:37:26Z","links":{"resolver":"https://pith.science/pith/IQ3PFI6BAH5GEVRO6UOAST5DIW","bundle":"https://pith.science/pith/IQ3PFI6BAH5GEVRO6UOAST5DIW/bundle.json","state":"https://pith.science/pith/IQ3PFI6BAH5GEVRO6UOAST5DIW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IQ3PFI6BAH5GEVRO6UOAST5DIW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:IQ3PFI6BAH5GEVRO6UOAST5DIW","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"8d5f3cfd8be5347dc1df4e59e1dd6305392c9c7c98f49718ecbc5b74cd3fb69f","cross_cats_sorted":["cs.DS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2011-09-06T04:10:13Z","title_canon_sha256":"d2d532d77d3db1471c09c04322a3d821a6b181951b0aa41106e66a95dcc28a44"},"schema_version":"1.0","source":{"id":"1109.1053","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.1053","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"arxiv_version","alias_value":"1109.1053v1","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.1053","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"pith_short_12","alias_value":"IQ3PFI6BAH5G","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"IQ3PFI6BAH5GEVRO","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"IQ3PFI6B","created_at":"2026-05-18T12:26:32Z"}],"graph_snapshots":[{"event_id":"sha256:371c6c973764de8518660003e599a498036805686b9a6dbfc540de5d8b68231d","target":"graph","created_at":"2026-05-18T04:14:05Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"This manuscript presents an alternative implementation of the truthful-in-expectation mechanism of Dughmi, Roughgarden and Yan for combinatorial auctions with weighted-matroid-rank-sum valuations. The new implementation uses only value queries and is approximately truthful-in-expectation, in the sense that by reporting truthfully each agent maximizes his utility within a multiplicative 1-o(1) factor. It still provides an optimal (1-1/e-o(1))-approximation in social welfare. We achieve this by first presenting an approximately maximal-in-distributional-range allocation rule and then showing a b","authors_text":"Jan Vondrak, Qiqi Yan, Shaddin Dughmi, Tim Roughgarden","cross_cats":["cs.DS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2011-09-06T04:10:13Z","title":"An approximately truthful-in-expectation mechanism for combinatorial auctions using value queries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.1053","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:5d466ca15601eb178a50f17a971e776e9ef5cc606187803c65b152c84e0c009e","target":"record","created_at":"2026-05-18T04:14:05Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"8d5f3cfd8be5347dc1df4e59e1dd6305392c9c7c98f49718ecbc5b74cd3fb69f","cross_cats_sorted":["cs.DS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2011-09-06T04:10:13Z","title_canon_sha256":"d2d532d77d3db1471c09c04322a3d821a6b181951b0aa41106e66a95dcc28a44"},"schema_version":"1.0","source":{"id":"1109.1053","kind":"arxiv","version":1}},"canonical_sha256":"4436f2a3c101fa62562ef51c094fa3458f6d91ea920aec6d72b006e1ccdb613e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4436f2a3c101fa62562ef51c094fa3458f6d91ea920aec6d72b006e1ccdb613e","first_computed_at":"2026-05-18T04:14:05.511123Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:14:05.511123Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RzGRAGRmttQgOSVlnyjM+D2avcE16A2i45PhoEa5QCti9pgA04cJoj+10DlMXsDTdrlB4PqpgNSOQRhnOGZdAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:14:05.511778Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.1053","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5d466ca15601eb178a50f17a971e776e9ef5cc606187803c65b152c84e0c009e","sha256:371c6c973764de8518660003e599a498036805686b9a6dbfc540de5d8b68231d"],"state_sha256":"d73395e3889201c47fef9a89848e850e59e3eeac8a4f0f61c03fda8227678a99"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OvM/esVNTf3qoNx12CYStkrW4LstllHWZV6chj+G/sI7qtydv58NsJIzy8+Kjf3ZXO1OKmvWX0FeZveIC5YFBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T14:37:26.205152Z","bundle_sha256":"83af5636ed3952ac3802538869522dc954803ccf12685053516e698faa07fe89"}}