{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:E3RV2YVQR4BJQJYUSSEZ7H3G2J","short_pith_number":"pith:E3RV2YVQ","canonical_record":{"source":{"id":"2105.02354","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2021-05-05T22:25:23Z","cross_cats_sorted":[],"title_canon_sha256":"f65856447b45ecfe6a3e49dea17c282cd62669404c0f51718e52f8721a09f19c","abstract_canon_sha256":"07fc1dbd8d075b1dddf6de023ab8058b193dd08d5f041333a3f5a5b5f8051dba"},"schema_version":"1.0"},"canonical_sha256":"26e35d62b08f0298271494899f9f66d24cbe00d765bcebfdfb2169e7a75e983c","source":{"kind":"arxiv","id":"2105.02354","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.02354","created_at":"2026-07-05T02:38:00Z"},{"alias_kind":"arxiv_version","alias_value":"2105.02354v1","created_at":"2026-07-05T02:38:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.02354","created_at":"2026-07-05T02:38:00Z"},{"alias_kind":"pith_short_12","alias_value":"E3RV2YVQR4BJ","created_at":"2026-07-05T02:38:00Z"},{"alias_kind":"pith_short_16","alias_value":"E3RV2YVQR4BJQJYU","created_at":"2026-07-05T02:38:00Z"},{"alias_kind":"pith_short_8","alias_value":"E3RV2YVQ","created_at":"2026-07-05T02:38:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:E3RV2YVQR4BJQJYUSSEZ7H3G2J","target":"record","payload":{"canonical_record":{"source":{"id":"2105.02354","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2021-05-05T22:25:23Z","cross_cats_sorted":[],"title_canon_sha256":"f65856447b45ecfe6a3e49dea17c282cd62669404c0f51718e52f8721a09f19c","abstract_canon_sha256":"07fc1dbd8d075b1dddf6de023ab8058b193dd08d5f041333a3f5a5b5f8051dba"},"schema_version":"1.0"},"canonical_sha256":"26e35d62b08f0298271494899f9f66d24cbe00d765bcebfdfb2169e7a75e983c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:38:00.483525Z","signature_b64":"SMCeOKakaKozrD6Z3yIAdjIKzOOMPTmQPHn33nixM0f/Qp3ky7VZv8Q0/CAPUUI7rt74JIY4dkeUeZrgdJpGCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"26e35d62b08f0298271494899f9f66d24cbe00d765bcebfdfb2169e7a75e983c","last_reissued_at":"2026-07-05T02:38:00.483163Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:38:00.483163Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2105.02354","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":"2026-07-05T02:38:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0TegTWpaP2qmFiYhYQCzxVgcjhcuWYgv1gba6g6R4xHmzIWq9SlHO+Lm7454yAFAKFujfzlXr9LUgVH8dfi6Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T22:46:11.576988Z"},"content_sha256":"02f576f11497053a9558bdcb5f14c0f116baa45f08bc1cef6925b9750af9f586","schema_version":"1.0","event_id":"sha256:02f576f11497053a9558bdcb5f14c0f116baa45f08bc1cef6925b9750af9f586"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:E3RV2YVQR4BJQJYUSSEZ7H3G2J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"WTR: A Test Collection for Web Table Retrieval","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.IR","authors_text":"Brian D. Davison, Shuo Zhang, Zhiyu Chen","submitted_at":"2021-05-05T22:25:23Z","abstract_excerpt":"We describe the development, characteristics and availability of a test collection for the task of Web table retrieval, which uses a large-scale Web Table Corpora extracted from the Common Crawl. Since a Web table usually has rich context information such as the page title and surrounding paragraphs, we not only provide relevance judgments of query-table pairs, but also the relevance judgments of query-table context pairs with respect to a query, which are ignored by previous test collections. To facilitate future research with this benchmark, we provide details about how the dataset is pre-pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.02354","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/2105.02354/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:38:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PFDqAshUd62Yj2M/GFw6PtkeNRQ8FYClhmrzlOKZJBn2erlxoPEtW+AHPS2+UOaeQ5bIB8UGghLY/hJn+L7dCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T22:46:11.577488Z"},"content_sha256":"a69a6878cf07ead6d05f2a43c4dfab1fc7a46508171aa9e8d08be2040f9924a0","schema_version":"1.0","event_id":"sha256:a69a6878cf07ead6d05f2a43c4dfab1fc7a46508171aa9e8d08be2040f9924a0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/E3RV2YVQR4BJQJYUSSEZ7H3G2J/bundle.json","state_url":"https://pith.science/pith/E3RV2YVQR4BJQJYUSSEZ7H3G2J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/E3RV2YVQR4BJQJYUSSEZ7H3G2J/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":"2026-08-19T22:46:11Z","links":{"resolver":"https://pith.science/pith/E3RV2YVQR4BJQJYUSSEZ7H3G2J","bundle":"https://pith.science/pith/E3RV2YVQR4BJQJYUSSEZ7H3G2J/bundle.json","state":"https://pith.science/pith/E3RV2YVQR4BJQJYUSSEZ7H3G2J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/E3RV2YVQR4BJQJYUSSEZ7H3G2J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:E3RV2YVQR4BJQJYUSSEZ7H3G2J","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":"07fc1dbd8d075b1dddf6de023ab8058b193dd08d5f041333a3f5a5b5f8051dba","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2021-05-05T22:25:23Z","title_canon_sha256":"f65856447b45ecfe6a3e49dea17c282cd62669404c0f51718e52f8721a09f19c"},"schema_version":"1.0","source":{"id":"2105.02354","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.02354","created_at":"2026-07-05T02:38:00Z"},{"alias_kind":"arxiv_version","alias_value":"2105.02354v1","created_at":"2026-07-05T02:38:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.02354","created_at":"2026-07-05T02:38:00Z"},{"alias_kind":"pith_short_12","alias_value":"E3RV2YVQR4BJ","created_at":"2026-07-05T02:38:00Z"},{"alias_kind":"pith_short_16","alias_value":"E3RV2YVQR4BJQJYU","created_at":"2026-07-05T02:38:00Z"},{"alias_kind":"pith_short_8","alias_value":"E3RV2YVQ","created_at":"2026-07-05T02:38:00Z"}],"graph_snapshots":[{"event_id":"sha256:a69a6878cf07ead6d05f2a43c4dfab1fc7a46508171aa9e8d08be2040f9924a0","target":"graph","created_at":"2026-07-05T02:38:00Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2105.02354/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We describe the development, characteristics and availability of a test collection for the task of Web table retrieval, which uses a large-scale Web Table Corpora extracted from the Common Crawl. Since a Web table usually has rich context information such as the page title and surrounding paragraphs, we not only provide relevance judgments of query-table pairs, but also the relevance judgments of query-table context pairs with respect to a query, which are ignored by previous test collections. To facilitate future research with this benchmark, we provide details about how the dataset is pre-pr","authors_text":"Brian D. Davison, Shuo Zhang, Zhiyu Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2021-05-05T22:25:23Z","title":"WTR: A Test Collection for Web Table Retrieval"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.02354","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":"sha256:02f576f11497053a9558bdcb5f14c0f116baa45f08bc1cef6925b9750af9f586","target":"record","created_at":"2026-07-05T02:38:00Z","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":"07fc1dbd8d075b1dddf6de023ab8058b193dd08d5f041333a3f5a5b5f8051dba","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2021-05-05T22:25:23Z","title_canon_sha256":"f65856447b45ecfe6a3e49dea17c282cd62669404c0f51718e52f8721a09f19c"},"schema_version":"1.0","source":{"id":"2105.02354","kind":"arxiv","version":1}},"canonical_sha256":"26e35d62b08f0298271494899f9f66d24cbe00d765bcebfdfb2169e7a75e983c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"26e35d62b08f0298271494899f9f66d24cbe00d765bcebfdfb2169e7a75e983c","first_computed_at":"2026-07-05T02:38:00.483163Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:38:00.483163Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SMCeOKakaKozrD6Z3yIAdjIKzOOMPTmQPHn33nixM0f/Qp3ky7VZv8Q0/CAPUUI7rt74JIY4dkeUeZrgdJpGCA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:38:00.483525Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.02354","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:02f576f11497053a9558bdcb5f14c0f116baa45f08bc1cef6925b9750af9f586","sha256:a69a6878cf07ead6d05f2a43c4dfab1fc7a46508171aa9e8d08be2040f9924a0"],"state_sha256":"b7c14f5ec97a228cbc7962a7271a1a3b02feb342c2e71b28ce4b0816090d0861"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2x4zupSdVEhQxOcLEJozrxklm6NuxW911jjSgs1gMfoI7YdlxuRTHcZP4pC+An2+S7gC5x99uEMstVWAZ1foAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T22:46:11.582930Z","bundle_sha256":"162f0975fd7410374d7259870beada70ce5d9acb3b833c4e9d30d048368ac1f3"}}