{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:KFS4W4GRXWUXIEZZPW5YUD6CLT","short_pith_number":"pith:KFS4W4GR","canonical_record":{"source":{"id":"1602.06454","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2016-02-20T20:33:41Z","cross_cats_sorted":["cs.IR"],"title_canon_sha256":"6db70a9e97d6bcd687b91ef2c1f46844e0e3e4ddb690e6f07f3f51a366d210ca","abstract_canon_sha256":"ad46d55d69b80000bad81c733465d12cab66cc6817a99de944520f0c1068c133"},"schema_version":"1.0"},"canonical_sha256":"5165cb70d1bda97413397dbb8a0fc25ceeb7c8fffe30ec9ebe2b064f1f1d0c0b","source":{"kind":"arxiv","id":"1602.06454","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.06454","created_at":"2026-05-18T01:20:07Z"},{"alias_kind":"arxiv_version","alias_value":"1602.06454v1","created_at":"2026-05-18T01:20:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.06454","created_at":"2026-05-18T01:20:07Z"},{"alias_kind":"pith_short_12","alias_value":"KFS4W4GRXWUX","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_16","alias_value":"KFS4W4GRXWUXIEZZ","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_8","alias_value":"KFS4W4GR","created_at":"2026-05-18T12:30:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:KFS4W4GRXWUXIEZZPW5YUD6CLT","target":"record","payload":{"canonical_record":{"source":{"id":"1602.06454","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2016-02-20T20:33:41Z","cross_cats_sorted":["cs.IR"],"title_canon_sha256":"6db70a9e97d6bcd687b91ef2c1f46844e0e3e4ddb690e6f07f3f51a366d210ca","abstract_canon_sha256":"ad46d55d69b80000bad81c733465d12cab66cc6817a99de944520f0c1068c133"},"schema_version":"1.0"},"canonical_sha256":"5165cb70d1bda97413397dbb8a0fc25ceeb7c8fffe30ec9ebe2b064f1f1d0c0b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:20:07.788081Z","signature_b64":"j2lP5c7s0DWrpj/YKjQ0IclDcYXWgeMEdiJS/LDPYbyn3F3PKq+bTHzc+1WGuFLeaPTbRYIzV8fxOrgBLb3dAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5165cb70d1bda97413397dbb8a0fc25ceeb7c8fffe30ec9ebe2b064f1f1d0c0b","last_reissued_at":"2026-05-18T01:20:07.787475Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:20:07.787475Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.06454","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":"2026-05-18T01:20:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mw3Lq4TYr0mOtrPSDnqZvC/Kol33F+DPpNoiZ8NzCAQqcVIlZ70Csnxw5IisBPJHh+4xHG1LHvjtUXDu9NxzAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T21:30:23.293848Z"},"content_sha256":"792ed66fc976d1f70c132a26b91c783132fc8e915e838baf76e5b51f0cb08b4b","schema_version":"1.0","event_id":"sha256:792ed66fc976d1f70c132a26b91c783132fc8e915e838baf76e5b51f0cb08b4b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:KFS4W4GRXWUXIEZZPW5YUD6CLT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Web Item Reviewing Made Easy By Leveraging Available User Feedback","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.IR"],"primary_cat":"cs.SI","authors_text":"Azade Nazi, Gautam Das, Mahashweta Das","submitted_at":"2016-02-20T20:33:41Z","abstract_excerpt":"The widespread use of online review sites over the past decade has motivated businesses of all types to possess an expansive arsenal of user feedback to mark their reputation. Though a significant proportion of purchasing decisions are driven by average rating, detailed reviews are critical for activities like buying expensive digital SLR camera. Since writing a detailed review for an item is usually time-consuming, the number of reviews available in the Web is far from many. Given a user and an item our goal is to identify the top-$k$ meaningful phrases/tags to help her review the item easily"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.06454","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":"2026-05-18T01:20:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5biNoUClcFvSOpoFOnI5n2KxN9GhNiKcCo3yg7o9VinG3mhjhcANXVpmkDZyet0qqJ5dvuV3BTU5vTOLrLnOCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T21:30:23.294228Z"},"content_sha256":"0ce6ae19a0955bac5f95a90ba8a5e4b9d6dec7f523826f6627520d2d0255443c","schema_version":"1.0","event_id":"sha256:0ce6ae19a0955bac5f95a90ba8a5e4b9d6dec7f523826f6627520d2d0255443c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KFS4W4GRXWUXIEZZPW5YUD6CLT/bundle.json","state_url":"https://pith.science/pith/KFS4W4GRXWUXIEZZPW5YUD6CLT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KFS4W4GRXWUXIEZZPW5YUD6CLT/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":"2026-06-06T21:30:23Z","links":{"resolver":"https://pith.science/pith/KFS4W4GRXWUXIEZZPW5YUD6CLT","bundle":"https://pith.science/pith/KFS4W4GRXWUXIEZZPW5YUD6CLT/bundle.json","state":"https://pith.science/pith/KFS4W4GRXWUXIEZZPW5YUD6CLT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KFS4W4GRXWUXIEZZPW5YUD6CLT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:KFS4W4GRXWUXIEZZPW5YUD6CLT","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":"ad46d55d69b80000bad81c733465d12cab66cc6817a99de944520f0c1068c133","cross_cats_sorted":["cs.IR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2016-02-20T20:33:41Z","title_canon_sha256":"6db70a9e97d6bcd687b91ef2c1f46844e0e3e4ddb690e6f07f3f51a366d210ca"},"schema_version":"1.0","source":{"id":"1602.06454","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.06454","created_at":"2026-05-18T01:20:07Z"},{"alias_kind":"arxiv_version","alias_value":"1602.06454v1","created_at":"2026-05-18T01:20:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.06454","created_at":"2026-05-18T01:20:07Z"},{"alias_kind":"pith_short_12","alias_value":"KFS4W4GRXWUX","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_16","alias_value":"KFS4W4GRXWUXIEZZ","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_8","alias_value":"KFS4W4GR","created_at":"2026-05-18T12:30:25Z"}],"graph_snapshots":[{"event_id":"sha256:0ce6ae19a0955bac5f95a90ba8a5e4b9d6dec7f523826f6627520d2d0255443c","target":"graph","created_at":"2026-05-18T01:20:07Z","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":"The widespread use of online review sites over the past decade has motivated businesses of all types to possess an expansive arsenal of user feedback to mark their reputation. Though a significant proportion of purchasing decisions are driven by average rating, detailed reviews are critical for activities like buying expensive digital SLR camera. Since writing a detailed review for an item is usually time-consuming, the number of reviews available in the Web is far from many. Given a user and an item our goal is to identify the top-$k$ meaningful phrases/tags to help her review the item easily","authors_text":"Azade Nazi, Gautam Das, Mahashweta Das","cross_cats":["cs.IR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2016-02-20T20:33:41Z","title":"Web Item Reviewing Made Easy By Leveraging Available User Feedback"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.06454","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":"sha256:792ed66fc976d1f70c132a26b91c783132fc8e915e838baf76e5b51f0cb08b4b","target":"record","created_at":"2026-05-18T01:20:07Z","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":"ad46d55d69b80000bad81c733465d12cab66cc6817a99de944520f0c1068c133","cross_cats_sorted":["cs.IR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2016-02-20T20:33:41Z","title_canon_sha256":"6db70a9e97d6bcd687b91ef2c1f46844e0e3e4ddb690e6f07f3f51a366d210ca"},"schema_version":"1.0","source":{"id":"1602.06454","kind":"arxiv","version":1}},"canonical_sha256":"5165cb70d1bda97413397dbb8a0fc25ceeb7c8fffe30ec9ebe2b064f1f1d0c0b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5165cb70d1bda97413397dbb8a0fc25ceeb7c8fffe30ec9ebe2b064f1f1d0c0b","first_computed_at":"2026-05-18T01:20:07.787475Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:20:07.787475Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j2lP5c7s0DWrpj/YKjQ0IclDcYXWgeMEdiJS/LDPYbyn3F3PKq+bTHzc+1WGuFLeaPTbRYIzV8fxOrgBLb3dAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:20:07.788081Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.06454","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:792ed66fc976d1f70c132a26b91c783132fc8e915e838baf76e5b51f0cb08b4b","sha256:0ce6ae19a0955bac5f95a90ba8a5e4b9d6dec7f523826f6627520d2d0255443c"],"state_sha256":"22087079717bbf4d155781cee32c3c3ed95ce43333e06a66d43885b178e56250"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zVzl3spMkqfTMdaufTv115Xi2aiAP+eoSnzr0n6Dq3wfbyrFJ6IUfN4BITDwn76oAmmRoihUr60Pqy1ZicjjCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T21:30:23.296925Z","bundle_sha256":"c79087db78e75bec5a4b490a265da762b989c0798e66ecaf3dee9b452ee8aef9"}}