{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:S4EXNNNIRJ5HT44BTEXF5EOZBK","short_pith_number":"pith:S4EXNNNI","canonical_record":{"source":{"id":"1109.2067","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2011-09-09T17:03:16Z","cross_cats_sorted":[],"title_canon_sha256":"98afd0e1a075f800afe1cd3e33a934e8bc860e49d194e8b8cdc3230a70bdd581","abstract_canon_sha256":"da360d3aff97b4b3221b6fad3ba428dd3841a239eb74e2482861ea03878d08ac"},"schema_version":"1.0"},"canonical_sha256":"970976b5a88a7a79f381992e5e91d90a8c22d57446da115bef460e7730b81011","source":{"kind":"arxiv","id":"1109.2067","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.2067","created_at":"2026-05-18T04:13:46Z"},{"alias_kind":"arxiv_version","alias_value":"1109.2067v1","created_at":"2026-05-18T04:13:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.2067","created_at":"2026-05-18T04:13:46Z"},{"alias_kind":"pith_short_12","alias_value":"S4EXNNNIRJ5H","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"S4EXNNNIRJ5HT44B","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"S4EXNNNI","created_at":"2026-05-18T12:26:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:S4EXNNNIRJ5HT44BTEXF5EOZBK","target":"record","payload":{"canonical_record":{"source":{"id":"1109.2067","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2011-09-09T17:03:16Z","cross_cats_sorted":[],"title_canon_sha256":"98afd0e1a075f800afe1cd3e33a934e8bc860e49d194e8b8cdc3230a70bdd581","abstract_canon_sha256":"da360d3aff97b4b3221b6fad3ba428dd3841a239eb74e2482861ea03878d08ac"},"schema_version":"1.0"},"canonical_sha256":"970976b5a88a7a79f381992e5e91d90a8c22d57446da115bef460e7730b81011","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:13:46.285653Z","signature_b64":"LiaeNMFd59KOyWxFhenkRo8cRWTN+URNltqI6eptCuMRuJKRAfETqvKZTgFmY4hgwzKnShVY+yXi3rTldzHGBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"970976b5a88a7a79f381992e5e91d90a8c22d57446da115bef460e7730b81011","last_reissued_at":"2026-05-18T04:13:46.285202Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:13:46.285202Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.2067","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":"2026-05-18T04:13:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KLsnlAhGYU/pNqTpjX1fLK/oi4nsBupnyWH1esVxQonim8VQmal2jdWXTemQRmUNK7AeEMEAGMYpdk3UfQXbAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T19:26:49.284712Z"},"content_sha256":"0ac99c08d00976d2a2a4177cd7518c19fa614e50d05acc4e67a82a6ce8af2a89","schema_version":"1.0","event_id":"sha256:0ac99c08d00976d2a2a4177cd7518c19fa614e50d05acc4e67a82a6ce8af2a89"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:S4EXNNNIRJ5HT44BTEXF5EOZBK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Impossibility of Black-Box Transformations in Mechanism Design","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.GT","authors_text":"Brendan Lucier, Nicole Immorlica, Shuchi Chawla","submitted_at":"2011-09-09T17:03:16Z","abstract_excerpt":"We consider the problem of converting an arbitrary approximation algorithm for a single-parameter optimization problem into a computationally efficient truthful mechanism. We ask for reductions that are black-box, meaning that they require only oracle access to the given algorithm and in particular do not require explicit knowledge of the problem constraints. Such a reduction is known to be possible, for example, for the social welfare objective when the goal is to achieve Bayesian truthfulness and preserve social welfare in expectation. We show that a black-box reduction for the social welfar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.2067","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":"2026-05-18T04:13:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o0TIpgZSaRHwZzi3I53wua+KM/AE6efnVS3b6YhLjhfEyGS1Lm37N/VgzpONPCi7Wy3DbTu8hkqs05LSbW7VDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T19:26:49.285056Z"},"content_sha256":"04f62428e90ae0f9bcc071fd85a38fdb0fce442a153f258a8a4835a089758f8b","schema_version":"1.0","event_id":"sha256:04f62428e90ae0f9bcc071fd85a38fdb0fce442a153f258a8a4835a089758f8b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S4EXNNNIRJ5HT44BTEXF5EOZBK/bundle.json","state_url":"https://pith.science/pith/S4EXNNNIRJ5HT44BTEXF5EOZBK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S4EXNNNIRJ5HT44BTEXF5EOZBK/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":"2026-06-02T19:26:49Z","links":{"resolver":"https://pith.science/pith/S4EXNNNIRJ5HT44BTEXF5EOZBK","bundle":"https://pith.science/pith/S4EXNNNIRJ5HT44BTEXF5EOZBK/bundle.json","state":"https://pith.science/pith/S4EXNNNIRJ5HT44BTEXF5EOZBK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S4EXNNNIRJ5HT44BTEXF5EOZBK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:S4EXNNNIRJ5HT44BTEXF5EOZBK","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":"da360d3aff97b4b3221b6fad3ba428dd3841a239eb74e2482861ea03878d08ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2011-09-09T17:03:16Z","title_canon_sha256":"98afd0e1a075f800afe1cd3e33a934e8bc860e49d194e8b8cdc3230a70bdd581"},"schema_version":"1.0","source":{"id":"1109.2067","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.2067","created_at":"2026-05-18T04:13:46Z"},{"alias_kind":"arxiv_version","alias_value":"1109.2067v1","created_at":"2026-05-18T04:13:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.2067","created_at":"2026-05-18T04:13:46Z"},{"alias_kind":"pith_short_12","alias_value":"S4EXNNNIRJ5H","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"S4EXNNNIRJ5HT44B","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"S4EXNNNI","created_at":"2026-05-18T12:26:41Z"}],"graph_snapshots":[{"event_id":"sha256:04f62428e90ae0f9bcc071fd85a38fdb0fce442a153f258a8a4835a089758f8b","target":"graph","created_at":"2026-05-18T04:13:46Z","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":"We consider the problem of converting an arbitrary approximation algorithm for a single-parameter optimization problem into a computationally efficient truthful mechanism. We ask for reductions that are black-box, meaning that they require only oracle access to the given algorithm and in particular do not require explicit knowledge of the problem constraints. Such a reduction is known to be possible, for example, for the social welfare objective when the goal is to achieve Bayesian truthfulness and preserve social welfare in expectation. We show that a black-box reduction for the social welfar","authors_text":"Brendan Lucier, Nicole Immorlica, Shuchi Chawla","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2011-09-09T17:03:16Z","title":"On the Impossibility of Black-Box Transformations in Mechanism Design"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.2067","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":"sha256:0ac99c08d00976d2a2a4177cd7518c19fa614e50d05acc4e67a82a6ce8af2a89","target":"record","created_at":"2026-05-18T04:13:46Z","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":"da360d3aff97b4b3221b6fad3ba428dd3841a239eb74e2482861ea03878d08ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2011-09-09T17:03:16Z","title_canon_sha256":"98afd0e1a075f800afe1cd3e33a934e8bc860e49d194e8b8cdc3230a70bdd581"},"schema_version":"1.0","source":{"id":"1109.2067","kind":"arxiv","version":1}},"canonical_sha256":"970976b5a88a7a79f381992e5e91d90a8c22d57446da115bef460e7730b81011","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"970976b5a88a7a79f381992e5e91d90a8c22d57446da115bef460e7730b81011","first_computed_at":"2026-05-18T04:13:46.285202Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:13:46.285202Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LiaeNMFd59KOyWxFhenkRo8cRWTN+URNltqI6eptCuMRuJKRAfETqvKZTgFmY4hgwzKnShVY+yXi3rTldzHGBw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:13:46.285653Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.2067","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0ac99c08d00976d2a2a4177cd7518c19fa614e50d05acc4e67a82a6ce8af2a89","sha256:04f62428e90ae0f9bcc071fd85a38fdb0fce442a153f258a8a4835a089758f8b"],"state_sha256":"141cc89c4f086dcce4471a47b43638cbae2d40b3355ab7629bb10542fcb42fde"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cLaEGmKZn6KdWOdEaDNuCwUs2n048F9WJP6q1OXQTqGoTF9s9mo5Dy4YCecCnyITLMl+5w+gScq3UtEpiF2tDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T19:26:49.287170Z","bundle_sha256":"c309e92df190b886d1c586a6688c0f29f96e59a5aeb70889939303d081cf5def"}}