{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:OBW2AN7FM3QZZRWZMOPKAV6TIQ","short_pith_number":"pith:OBW2AN7F","canonical_record":{"source":{"id":"1303.4438","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2013-03-18T21:52:31Z","cross_cats_sorted":[],"title_canon_sha256":"9383fc12488253ac421f38e261167cc9b984b877a49d884079aeb69752cead00","abstract_canon_sha256":"53964221e97246ed742081f37fcb98672ea844578a85afe43c0101eda7bda2c2"},"schema_version":"1.0"},"canonical_sha256":"706da037e566e19cc6d9639ea057d34413b2b3c356fbae84c5ba52493ce60222","source":{"kind":"arxiv","id":"1303.4438","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.4438","created_at":"2026-05-18T03:30:27Z"},{"alias_kind":"arxiv_version","alias_value":"1303.4438v1","created_at":"2026-05-18T03:30:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.4438","created_at":"2026-05-18T03:30:27Z"},{"alias_kind":"pith_short_12","alias_value":"OBW2AN7FM3QZ","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"OBW2AN7FM3QZZRWZ","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"OBW2AN7F","created_at":"2026-05-18T12:27:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:OBW2AN7FM3QZZRWZMOPKAV6TIQ","target":"record","payload":{"canonical_record":{"source":{"id":"1303.4438","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2013-03-18T21:52:31Z","cross_cats_sorted":[],"title_canon_sha256":"9383fc12488253ac421f38e261167cc9b984b877a49d884079aeb69752cead00","abstract_canon_sha256":"53964221e97246ed742081f37fcb98672ea844578a85afe43c0101eda7bda2c2"},"schema_version":"1.0"},"canonical_sha256":"706da037e566e19cc6d9639ea057d34413b2b3c356fbae84c5ba52493ce60222","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:30:27.229970Z","signature_b64":"W8pgpWLNYABLlAV76PTSBqhPCpmXr1FbW2Hbvq0Rf8syX8FzbUpkorBojh50qNm0LU4dI5svgtiSizZ5iTQjDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"706da037e566e19cc6d9639ea057d34413b2b3c356fbae84c5ba52493ce60222","last_reissued_at":"2026-05-18T03:30:27.229264Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:30:27.229264Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.4438","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":"2026-05-18T03:30:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ea5ksNzbOGqyxFMaRv4CwYKPLfPMJvkhcjBUOL+I8GPhxmkJz7h0BygE7WY2VmVaMjWMN+p7p2tKkL8rE3vJCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:24:42.687937Z"},"content_sha256":"caebf3c75a7f9764c0f020ff7344e3afd3e7c938e1e855f0d2a8b5885265407b","schema_version":"1.0","event_id":"sha256:caebf3c75a7f9764c0f020ff7344e3afd3e7c938e1e855f0d2a8b5885265407b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:OBW2AN7FM3QZZRWZMOPKAV6TIQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On Random Sampling Auctions for Digital Goods","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.GT","authors_text":"Aravind Srinivasan, Azarakhsh Malekian, Saeed Alaei","submitted_at":"2013-03-18T21:52:31Z","abstract_excerpt":"In the context of auctions for digital goods, an interesting random sampling auction has been proposed by Goldberg, Hartline, and Wright [2001]. This auction has been analyzed by Feige, Flaxman, Hartline, and Kleinberg [2005], who have shown that it is 15-competitive in the worst case {which is substantially better than the previously proven constant bounds but still far from the conjectured competitive ratio of 4. In this paper, we prove that the aforementioned random sampling auction is indeed 4-competitive for a large class of instances where the number of bids above (or equal to) the optim"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.4438","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":"2026-05-18T03:30:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yu7sBisYpcme//wJxP8FPh0P+KGAjYrVPdEJ46Ei7hTpFFzZvMCFmvgLCy14YCUzuq1kWuKJXDU43ooJKdsnDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:24:42.688605Z"},"content_sha256":"ae9021116765f4a1f3043eac5b58819344ef8b362e60df6eb314ef2f55a25470","schema_version":"1.0","event_id":"sha256:ae9021116765f4a1f3043eac5b58819344ef8b362e60df6eb314ef2f55a25470"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OBW2AN7FM3QZZRWZMOPKAV6TIQ/bundle.json","state_url":"https://pith.science/pith/OBW2AN7FM3QZZRWZMOPKAV6TIQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OBW2AN7FM3QZZRWZMOPKAV6TIQ/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":"2026-06-08T21:24:42Z","links":{"resolver":"https://pith.science/pith/OBW2AN7FM3QZZRWZMOPKAV6TIQ","bundle":"https://pith.science/pith/OBW2AN7FM3QZZRWZMOPKAV6TIQ/bundle.json","state":"https://pith.science/pith/OBW2AN7FM3QZZRWZMOPKAV6TIQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OBW2AN7FM3QZZRWZMOPKAV6TIQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:OBW2AN7FM3QZZRWZMOPKAV6TIQ","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":"53964221e97246ed742081f37fcb98672ea844578a85afe43c0101eda7bda2c2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2013-03-18T21:52:31Z","title_canon_sha256":"9383fc12488253ac421f38e261167cc9b984b877a49d884079aeb69752cead00"},"schema_version":"1.0","source":{"id":"1303.4438","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.4438","created_at":"2026-05-18T03:30:27Z"},{"alias_kind":"arxiv_version","alias_value":"1303.4438v1","created_at":"2026-05-18T03:30:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.4438","created_at":"2026-05-18T03:30:27Z"},{"alias_kind":"pith_short_12","alias_value":"OBW2AN7FM3QZ","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"OBW2AN7FM3QZZRWZ","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"OBW2AN7F","created_at":"2026-05-18T12:27:54Z"}],"graph_snapshots":[{"event_id":"sha256:ae9021116765f4a1f3043eac5b58819344ef8b362e60df6eb314ef2f55a25470","target":"graph","created_at":"2026-05-18T03:30:27Z","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":"In the context of auctions for digital goods, an interesting random sampling auction has been proposed by Goldberg, Hartline, and Wright [2001]. This auction has been analyzed by Feige, Flaxman, Hartline, and Kleinberg [2005], who have shown that it is 15-competitive in the worst case {which is substantially better than the previously proven constant bounds but still far from the conjectured competitive ratio of 4. In this paper, we prove that the aforementioned random sampling auction is indeed 4-competitive for a large class of instances where the number of bids above (or equal to) the optim","authors_text":"Aravind Srinivasan, Azarakhsh Malekian, Saeed Alaei","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2013-03-18T21:52:31Z","title":"On Random Sampling Auctions for Digital Goods"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.4438","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:caebf3c75a7f9764c0f020ff7344e3afd3e7c938e1e855f0d2a8b5885265407b","target":"record","created_at":"2026-05-18T03:30:27Z","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":"53964221e97246ed742081f37fcb98672ea844578a85afe43c0101eda7bda2c2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2013-03-18T21:52:31Z","title_canon_sha256":"9383fc12488253ac421f38e261167cc9b984b877a49d884079aeb69752cead00"},"schema_version":"1.0","source":{"id":"1303.4438","kind":"arxiv","version":1}},"canonical_sha256":"706da037e566e19cc6d9639ea057d34413b2b3c356fbae84c5ba52493ce60222","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"706da037e566e19cc6d9639ea057d34413b2b3c356fbae84c5ba52493ce60222","first_computed_at":"2026-05-18T03:30:27.229264Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:30:27.229264Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"W8pgpWLNYABLlAV76PTSBqhPCpmXr1FbW2Hbvq0Rf8syX8FzbUpkorBojh50qNm0LU4dI5svgtiSizZ5iTQjDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:30:27.229970Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.4438","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:caebf3c75a7f9764c0f020ff7344e3afd3e7c938e1e855f0d2a8b5885265407b","sha256:ae9021116765f4a1f3043eac5b58819344ef8b362e60df6eb314ef2f55a25470"],"state_sha256":"3cb4501360a9b7c9b30ff4f2e47362dec92c9133187517cb41eeb1c01a5060cf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+7JhY/wz1ONGz9fhHgBITi6RxjH5XsseLvaleeF+MOOTYsLYK5IUX7hQ2LyykobelOoyStTKssrn1amm7XjdDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T21:24:42.692268Z","bundle_sha256":"9b388f414846de81cadcc10321629ee97f0a4c5c40cb9ed2f7ecc0b914c9643e"}}