{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:KV7T7BD43CGY6X3F45AOALSMRQ","short_pith_number":"pith:KV7T7BD4","canonical_record":{"source":{"id":"2107.00846","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2021-07-02T05:42:15Z","cross_cats_sorted":[],"title_canon_sha256":"c0ef3938e8355af6e79ee63f9580fe570a4fd503e94c69d7d9e4ae8452561acb","abstract_canon_sha256":"4c8d69c8bd40bd2dc9e152130aa70685bb0c5e96f30f0d98edb7d0da0be26b0b"},"schema_version":"1.0"},"canonical_sha256":"557f3f847cd88d8f5f65e740e02e4c8c3f4196cdc02cadbaab41c0d4b08880d8","source":{"kind":"arxiv","id":"2107.00846","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.00846","created_at":"2026-07-05T02:56:28Z"},{"alias_kind":"arxiv_version","alias_value":"2107.00846v2","created_at":"2026-07-05T02:56:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.00846","created_at":"2026-07-05T02:56:28Z"},{"alias_kind":"pith_short_12","alias_value":"KV7T7BD43CGY","created_at":"2026-07-05T02:56:28Z"},{"alias_kind":"pith_short_16","alias_value":"KV7T7BD43CGY6X3F","created_at":"2026-07-05T02:56:28Z"},{"alias_kind":"pith_short_8","alias_value":"KV7T7BD4","created_at":"2026-07-05T02:56:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:KV7T7BD43CGY6X3F45AOALSMRQ","target":"record","payload":{"canonical_record":{"source":{"id":"2107.00846","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2021-07-02T05:42:15Z","cross_cats_sorted":[],"title_canon_sha256":"c0ef3938e8355af6e79ee63f9580fe570a4fd503e94c69d7d9e4ae8452561acb","abstract_canon_sha256":"4c8d69c8bd40bd2dc9e152130aa70685bb0c5e96f30f0d98edb7d0da0be26b0b"},"schema_version":"1.0"},"canonical_sha256":"557f3f847cd88d8f5f65e740e02e4c8c3f4196cdc02cadbaab41c0d4b08880d8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:56:28.737635Z","signature_b64":"/sZ5H5e3c+sPAhs6wB3dCkGqXn38xC2BhNXhvVWdVcCrRUazCVWQu6YyIHSf7tXOnK5CSVVanAVJp1/rs/1KDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"557f3f847cd88d8f5f65e740e02e4c8c3f4196cdc02cadbaab41c0d4b08880d8","last_reissued_at":"2026-07-05T02:56:28.737170Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:56:28.737170Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2107.00846","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:56:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JRebIEkv9U9dmYZFgxTB1R73B25WNstlc2nMPQm066nWRG09JecP17/Z4jiFVy67IoqL6NV7SihHAWnI3AMdAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T20:24:59.550588Z"},"content_sha256":"1dbc8c4157fdcda5be5caf7cd732584bdc551fb5d4ebd7c4b3e03814db316c31","schema_version":"1.0","event_id":"sha256:1dbc8c4157fdcda5be5caf7cd732584bdc551fb5d4ebd7c4b3e03814db316c31"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:KV7T7BD43CGY6X3F45AOALSMRQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploiting Positional Information for Session-based Recommendation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.IR","authors_text":"Hongzhi Yin, Ruihong Qiu, Tong Chen, Zi Huang","submitted_at":"2021-07-02T05:42:15Z","abstract_excerpt":"For present e-commerce platforms, session-based recommender systems are developed to predict users' preference for next-item recommendation. Although a session can usually reflect a user's current preference, a local shift of the user's intention within the session may still exist. Specifically, the interactions that take place in the early positions within a session generally indicate the user's initial intention, while later interactions are more likely to represent the latest intention. Such positional information has been rarely considered in existing methods, which restricts their ability"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.00846","kind":"arxiv","version":2},"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/2107.00846/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":"2026-07-05T02:56:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5t6iG9TeKiFrG4/IyjqSvnnUcIEo3SsKdPOlAq1g/YNFaweTC4hry3v7MHpEeo6iGmJA3IOC43HS+RfAmU3ICw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T20:24:59.551089Z"},"content_sha256":"b8067dd29f7ddb5d57a04920bced18a44578ff741c5e301151e1314e4e0bdfb0","schema_version":"1.0","event_id":"sha256:b8067dd29f7ddb5d57a04920bced18a44578ff741c5e301151e1314e4e0bdfb0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KV7T7BD43CGY6X3F45AOALSMRQ/bundle.json","state_url":"https://pith.science/pith/KV7T7BD43CGY6X3F45AOALSMRQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KV7T7BD43CGY6X3F45AOALSMRQ/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":"2026-08-04T20:24:59Z","links":{"resolver":"https://pith.science/pith/KV7T7BD43CGY6X3F45AOALSMRQ","bundle":"https://pith.science/pith/KV7T7BD43CGY6X3F45AOALSMRQ/bundle.json","state":"https://pith.science/pith/KV7T7BD43CGY6X3F45AOALSMRQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KV7T7BD43CGY6X3F45AOALSMRQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:KV7T7BD43CGY6X3F45AOALSMRQ","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":"4c8d69c8bd40bd2dc9e152130aa70685bb0c5e96f30f0d98edb7d0da0be26b0b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2021-07-02T05:42:15Z","title_canon_sha256":"c0ef3938e8355af6e79ee63f9580fe570a4fd503e94c69d7d9e4ae8452561acb"},"schema_version":"1.0","source":{"id":"2107.00846","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.00846","created_at":"2026-07-05T02:56:28Z"},{"alias_kind":"arxiv_version","alias_value":"2107.00846v2","created_at":"2026-07-05T02:56:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.00846","created_at":"2026-07-05T02:56:28Z"},{"alias_kind":"pith_short_12","alias_value":"KV7T7BD43CGY","created_at":"2026-07-05T02:56:28Z"},{"alias_kind":"pith_short_16","alias_value":"KV7T7BD43CGY6X3F","created_at":"2026-07-05T02:56:28Z"},{"alias_kind":"pith_short_8","alias_value":"KV7T7BD4","created_at":"2026-07-05T02:56:28Z"}],"graph_snapshots":[{"event_id":"sha256:b8067dd29f7ddb5d57a04920bced18a44578ff741c5e301151e1314e4e0bdfb0","target":"graph","created_at":"2026-07-05T02:56:28Z","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/2107.00846/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"For present e-commerce platforms, session-based recommender systems are developed to predict users' preference for next-item recommendation. Although a session can usually reflect a user's current preference, a local shift of the user's intention within the session may still exist. Specifically, the interactions that take place in the early positions within a session generally indicate the user's initial intention, while later interactions are more likely to represent the latest intention. Such positional information has been rarely considered in existing methods, which restricts their ability","authors_text":"Hongzhi Yin, Ruihong Qiu, Tong Chen, Zi Huang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2021-07-02T05:42:15Z","title":"Exploiting Positional Information for Session-based Recommendation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.00846","kind":"arxiv","version":2},"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":"sha256:1dbc8c4157fdcda5be5caf7cd732584bdc551fb5d4ebd7c4b3e03814db316c31","target":"record","created_at":"2026-07-05T02:56:28Z","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":"4c8d69c8bd40bd2dc9e152130aa70685bb0c5e96f30f0d98edb7d0da0be26b0b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2021-07-02T05:42:15Z","title_canon_sha256":"c0ef3938e8355af6e79ee63f9580fe570a4fd503e94c69d7d9e4ae8452561acb"},"schema_version":"1.0","source":{"id":"2107.00846","kind":"arxiv","version":2}},"canonical_sha256":"557f3f847cd88d8f5f65e740e02e4c8c3f4196cdc02cadbaab41c0d4b08880d8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"557f3f847cd88d8f5f65e740e02e4c8c3f4196cdc02cadbaab41c0d4b08880d8","first_computed_at":"2026-07-05T02:56:28.737170Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:56:28.737170Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/sZ5H5e3c+sPAhs6wB3dCkGqXn38xC2BhNXhvVWdVcCrRUazCVWQu6YyIHSf7tXOnK5CSVVanAVJp1/rs/1KDA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:56:28.737635Z","signed_message":"canonical_sha256_bytes"},"source_id":"2107.00846","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1dbc8c4157fdcda5be5caf7cd732584bdc551fb5d4ebd7c4b3e03814db316c31","sha256:b8067dd29f7ddb5d57a04920bced18a44578ff741c5e301151e1314e4e0bdfb0"],"state_sha256":"192a33f59c9b3ed39f8a4c97cf4b3b685bd398095f92285fb23b14e81bb4c064"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RzZkVNDNlewGGhp1qXG+NWjabFkn2CZ5F2Z/DyhIV954CI1EtVz0tGE9+UrJ+CNTEpattaiSqnawJoywqK8MBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T20:24:59.555854Z","bundle_sha256":"fbd502644adb81d19ad86c58550e26157a3bd73e9429bf1abafca85782042283"}}