{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:PP77BXQJ36ZVJ4E3AYS3Z2CAV5","short_pith_number":"pith:PP77BXQJ","canonical_record":{"source":{"id":"1802.04947","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-02-14T03:57:59Z","cross_cats_sorted":[],"title_canon_sha256":"fb302c452d64623e8e9dfd0221f30534d767d703a4f59954ff49105c581b4083","abstract_canon_sha256":"45883ca9c78152c22407533766288efe9312a979e3b23cc17fdc27bbc6520434"},"schema_version":"1.0"},"canonical_sha256":"7bfff0de09dfb354f09b0625bce840af676285f5a4ab9f6378e74a2f292e3a4a","source":{"kind":"arxiv","id":"1802.04947","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.04947","created_at":"2026-05-18T00:23:22Z"},{"alias_kind":"arxiv_version","alias_value":"1802.04947v1","created_at":"2026-05-18T00:23:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.04947","created_at":"2026-05-18T00:23:22Z"},{"alias_kind":"pith_short_12","alias_value":"PP77BXQJ36ZV","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"PP77BXQJ36ZVJ4E3","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"PP77BXQJ","created_at":"2026-05-18T12:32:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:PP77BXQJ36ZVJ4E3AYS3Z2CAV5","target":"record","payload":{"canonical_record":{"source":{"id":"1802.04947","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-02-14T03:57:59Z","cross_cats_sorted":[],"title_canon_sha256":"fb302c452d64623e8e9dfd0221f30534d767d703a4f59954ff49105c581b4083","abstract_canon_sha256":"45883ca9c78152c22407533766288efe9312a979e3b23cc17fdc27bbc6520434"},"schema_version":"1.0"},"canonical_sha256":"7bfff0de09dfb354f09b0625bce840af676285f5a4ab9f6378e74a2f292e3a4a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:23:22.089551Z","signature_b64":"SUw2hyFGXrJlyHs2mKeulX4EZ0+AorWNCQJr0fnx4zx/PBaBr6o4bqfvtdumMVSMtX/NIqqugdwLTQFpseiHCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7bfff0de09dfb354f09b0625bce840af676285f5a4ab9f6378e74a2f292e3a4a","last_reissued_at":"2026-05-18T00:23:22.088880Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:23:22.088880Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.04947","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":"2026-05-18T00:23:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IznR+XRnkqlovsX119LoYapEBJRbtszFaXS02A/+/r7IHt2+JTfQUJb0higIFD9fIMjK56iMLv2SdRvYsJ+9DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:58:08.401958Z"},"content_sha256":"906190a62233b9a1286e19ab76d5302c0a51e538e71af2c8b7e10181590c701a","schema_version":"1.0","event_id":"sha256:906190a62233b9a1286e19ab76d5302c0a51e538e71af2c8b7e10181590c701a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:PP77BXQJ36ZVJ4E3AYS3Z2CAV5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Attack RMSE Leaderboard: An Introduction and Case Study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.LG","authors_text":"Cong Xie","submitted_at":"2018-02-14T03:57:59Z","abstract_excerpt":"In this manuscript, we briefly introduce several tricks to climb the leaderboards which use RMSE for evaluation without exploiting any training data."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.04947","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":"2026-05-18T00:23:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uy+LI5BsofpV3mNwcnetSPYB6kC1osLgb7fPC4mcrkG/gf7lulDufoIow5Tj8XuqMXLai2j1vlc/+/ckLZ8cAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:58:08.402623Z"},"content_sha256":"c1d3292945b495a5c64b723018fa0d9606dbfbcc9515290e46e12dda0f92702d","schema_version":"1.0","event_id":"sha256:c1d3292945b495a5c64b723018fa0d9606dbfbcc9515290e46e12dda0f92702d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PP77BXQJ36ZVJ4E3AYS3Z2CAV5/bundle.json","state_url":"https://pith.science/pith/PP77BXQJ36ZVJ4E3AYS3Z2CAV5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PP77BXQJ36ZVJ4E3AYS3Z2CAV5/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":"2026-05-26T06:58:08Z","links":{"resolver":"https://pith.science/pith/PP77BXQJ36ZVJ4E3AYS3Z2CAV5","bundle":"https://pith.science/pith/PP77BXQJ36ZVJ4E3AYS3Z2CAV5/bundle.json","state":"https://pith.science/pith/PP77BXQJ36ZVJ4E3AYS3Z2CAV5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PP77BXQJ36ZVJ4E3AYS3Z2CAV5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:PP77BXQJ36ZVJ4E3AYS3Z2CAV5","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":"45883ca9c78152c22407533766288efe9312a979e3b23cc17fdc27bbc6520434","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-02-14T03:57:59Z","title_canon_sha256":"fb302c452d64623e8e9dfd0221f30534d767d703a4f59954ff49105c581b4083"},"schema_version":"1.0","source":{"id":"1802.04947","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.04947","created_at":"2026-05-18T00:23:22Z"},{"alias_kind":"arxiv_version","alias_value":"1802.04947v1","created_at":"2026-05-18T00:23:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.04947","created_at":"2026-05-18T00:23:22Z"},{"alias_kind":"pith_short_12","alias_value":"PP77BXQJ36ZV","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"PP77BXQJ36ZVJ4E3","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"PP77BXQJ","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:c1d3292945b495a5c64b723018fa0d9606dbfbcc9515290e46e12dda0f92702d","target":"graph","created_at":"2026-05-18T00:23:22Z","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 this manuscript, we briefly introduce several tricks to climb the leaderboards which use RMSE for evaluation without exploiting any training data.","authors_text":"Cong Xie","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-02-14T03:57:59Z","title":"Attack RMSE Leaderboard: An Introduction and Case Study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.04947","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":"sha256:906190a62233b9a1286e19ab76d5302c0a51e538e71af2c8b7e10181590c701a","target":"record","created_at":"2026-05-18T00:23:22Z","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":"45883ca9c78152c22407533766288efe9312a979e3b23cc17fdc27bbc6520434","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-02-14T03:57:59Z","title_canon_sha256":"fb302c452d64623e8e9dfd0221f30534d767d703a4f59954ff49105c581b4083"},"schema_version":"1.0","source":{"id":"1802.04947","kind":"arxiv","version":1}},"canonical_sha256":"7bfff0de09dfb354f09b0625bce840af676285f5a4ab9f6378e74a2f292e3a4a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7bfff0de09dfb354f09b0625bce840af676285f5a4ab9f6378e74a2f292e3a4a","first_computed_at":"2026-05-18T00:23:22.088880Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:23:22.088880Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SUw2hyFGXrJlyHs2mKeulX4EZ0+AorWNCQJr0fnx4zx/PBaBr6o4bqfvtdumMVSMtX/NIqqugdwLTQFpseiHCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:23:22.089551Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.04947","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:906190a62233b9a1286e19ab76d5302c0a51e538e71af2c8b7e10181590c701a","sha256:c1d3292945b495a5c64b723018fa0d9606dbfbcc9515290e46e12dda0f92702d"],"state_sha256":"6dc9be63dd5b9a6a7a975f4d3913c8b40ec6a6fc5b98e1e855fff884835f5647"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YrSZa9EILe/uBeI1Tx/4uw3sRp2ZMPzVGX7ejEKjN4MtIOSr9r2hohVXsZbZ3b2q9dH3t0++bigvXy3vDvovBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T06:58:08.406343Z","bundle_sha256":"29947e25fe400894c1bea0573ec3358fd43843cbd2d36688e54f3e6b40f3c487"}}