{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:3XZYAI7CDHFJOO7DF4RHYOLVDU","short_pith_number":"pith:3XZYAI7C","canonical_record":{"source":{"id":"1910.14025","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-10-30T08:04:43Z","cross_cats_sorted":["cs.CL","cs.LG","stat.ML"],"title_canon_sha256":"bf322c39f2ed4219955e9b40f3f89f0877ed2dc9ffb31983c793ac413389fc49","abstract_canon_sha256":"4c8d40983a733b6b653e3ac0746b1c4f1d9cbfd231f17b1d2a8ff89f639a5b1e"},"schema_version":"1.0"},"canonical_sha256":"ddf38023e219ca973be32f227c39751d0f2e01a1a35871c8d016ededd3b698dc","source":{"kind":"arxiv","id":"1910.14025","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.14025","created_at":"2026-07-05T00:17:55Z"},{"alias_kind":"arxiv_version","alias_value":"1910.14025v2","created_at":"2026-07-05T00:17:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.14025","created_at":"2026-07-05T00:17:55Z"},{"alias_kind":"pith_short_12","alias_value":"3XZYAI7CDHFJ","created_at":"2026-07-05T00:17:55Z"},{"alias_kind":"pith_short_16","alias_value":"3XZYAI7CDHFJOO7D","created_at":"2026-07-05T00:17:55Z"},{"alias_kind":"pith_short_8","alias_value":"3XZYAI7C","created_at":"2026-07-05T00:17:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:3XZYAI7CDHFJOO7DF4RHYOLVDU","target":"record","payload":{"canonical_record":{"source":{"id":"1910.14025","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-10-30T08:04:43Z","cross_cats_sorted":["cs.CL","cs.LG","stat.ML"],"title_canon_sha256":"bf322c39f2ed4219955e9b40f3f89f0877ed2dc9ffb31983c793ac413389fc49","abstract_canon_sha256":"4c8d40983a733b6b653e3ac0746b1c4f1d9cbfd231f17b1d2a8ff89f639a5b1e"},"schema_version":"1.0"},"canonical_sha256":"ddf38023e219ca973be32f227c39751d0f2e01a1a35871c8d016ededd3b698dc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:17:55.855979Z","signature_b64":"JPftEiQtXwTPGvwTfLr52isdZu9eEs5jKaKKfxWf0h9hxHcqemZm6n1jrK5tDdyeyzZ00BJegqq16HeYKve9Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ddf38023e219ca973be32f227c39751d0f2e01a1a35871c8d016ededd3b698dc","last_reissued_at":"2026-07-05T00:17:55.855589Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:17:55.855589Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1910.14025","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":"2026-07-05T00:17:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aquFJ3AznkBajSmIJ+Tmjk9R2U9HkEOcG8ZmH9LwSLLNlFjoji6POkmHRLwc4mMSSfWzB5ouQ4q9holTXvwQCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T08:02:58.374221Z"},"content_sha256":"dd2aca2a100e385388f81a83dc04ec70f742687cbdf355090a210fd5e66a4333","schema_version":"1.0","event_id":"sha256:dd2aca2a100e385388f81a83dc04ec70f742687cbdf355090a210fd5e66a4333"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:3XZYAI7CDHFJOO7DF4RHYOLVDU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Graph Neural News Recommendation with Long-term and Short-term Interest Modeling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CL","cs.LG","stat.ML"],"primary_cat":"cs.IR","authors_text":"Chao Shao, Cheng Yang, Chen Li, Chuan Shi, Linmei Hu","submitted_at":"2019-10-30T08:04:43Z","abstract_excerpt":"With the information explosion of news articles, personalized news recommendation has become important for users to quickly find news that they are interested in. Existing methods on news recommendation mainly include collaborative filtering methods which rely on direct user-item interactions and content based methods which characterize the content of user reading history. Although these methods have achieved good performances, they still suffer from data sparse problem, since most of them fail to extensively exploit high-order structure information (similar users tend to read similar news art"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.14025","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/1910.14025/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":"2026-07-05T00:17:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NasIqub+huTR+usF6uqyfQJhdQpgV2sGqFHw1jXYY/XHL2ZhrLOKG9qB+SqqT+JKL+Nj48GEvaglKMEpo7EOBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T08:02:58.374825Z"},"content_sha256":"35bebe6c2c266fa72c26f5d0b888ea29b225b4dfb759ef7147a919a77be9d1e5","schema_version":"1.0","event_id":"sha256:35bebe6c2c266fa72c26f5d0b888ea29b225b4dfb759ef7147a919a77be9d1e5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3XZYAI7CDHFJOO7DF4RHYOLVDU/bundle.json","state_url":"https://pith.science/pith/3XZYAI7CDHFJOO7DF4RHYOLVDU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3XZYAI7CDHFJOO7DF4RHYOLVDU/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":"2026-08-06T08:02:58Z","links":{"resolver":"https://pith.science/pith/3XZYAI7CDHFJOO7DF4RHYOLVDU","bundle":"https://pith.science/pith/3XZYAI7CDHFJOO7DF4RHYOLVDU/bundle.json","state":"https://pith.science/pith/3XZYAI7CDHFJOO7DF4RHYOLVDU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3XZYAI7CDHFJOO7DF4RHYOLVDU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:3XZYAI7CDHFJOO7DF4RHYOLVDU","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":"4c8d40983a733b6b653e3ac0746b1c4f1d9cbfd231f17b1d2a8ff89f639a5b1e","cross_cats_sorted":["cs.CL","cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-10-30T08:04:43Z","title_canon_sha256":"bf322c39f2ed4219955e9b40f3f89f0877ed2dc9ffb31983c793ac413389fc49"},"schema_version":"1.0","source":{"id":"1910.14025","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.14025","created_at":"2026-07-05T00:17:55Z"},{"alias_kind":"arxiv_version","alias_value":"1910.14025v2","created_at":"2026-07-05T00:17:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.14025","created_at":"2026-07-05T00:17:55Z"},{"alias_kind":"pith_short_12","alias_value":"3XZYAI7CDHFJ","created_at":"2026-07-05T00:17:55Z"},{"alias_kind":"pith_short_16","alias_value":"3XZYAI7CDHFJOO7D","created_at":"2026-07-05T00:17:55Z"},{"alias_kind":"pith_short_8","alias_value":"3XZYAI7C","created_at":"2026-07-05T00:17:55Z"}],"graph_snapshots":[{"event_id":"sha256:35bebe6c2c266fa72c26f5d0b888ea29b225b4dfb759ef7147a919a77be9d1e5","target":"graph","created_at":"2026-07-05T00:17:55Z","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/1910.14025/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"With the information explosion of news articles, personalized news recommendation has become important for users to quickly find news that they are interested in. Existing methods on news recommendation mainly include collaborative filtering methods which rely on direct user-item interactions and content based methods which characterize the content of user reading history. Although these methods have achieved good performances, they still suffer from data sparse problem, since most of them fail to extensively exploit high-order structure information (similar users tend to read similar news art","authors_text":"Chao Shao, Cheng Yang, Chen Li, Chuan Shi, Linmei Hu","cross_cats":["cs.CL","cs.LG","stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-10-30T08:04:43Z","title":"Graph Neural News Recommendation with Long-term and Short-term Interest Modeling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.14025","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:dd2aca2a100e385388f81a83dc04ec70f742687cbdf355090a210fd5e66a4333","target":"record","created_at":"2026-07-05T00:17:55Z","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":"4c8d40983a733b6b653e3ac0746b1c4f1d9cbfd231f17b1d2a8ff89f639a5b1e","cross_cats_sorted":["cs.CL","cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-10-30T08:04:43Z","title_canon_sha256":"bf322c39f2ed4219955e9b40f3f89f0877ed2dc9ffb31983c793ac413389fc49"},"schema_version":"1.0","source":{"id":"1910.14025","kind":"arxiv","version":2}},"canonical_sha256":"ddf38023e219ca973be32f227c39751d0f2e01a1a35871c8d016ededd3b698dc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ddf38023e219ca973be32f227c39751d0f2e01a1a35871c8d016ededd3b698dc","first_computed_at":"2026-07-05T00:17:55.855589Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:17:55.855589Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JPftEiQtXwTPGvwTfLr52isdZu9eEs5jKaKKfxWf0h9hxHcqemZm6n1jrK5tDdyeyzZ00BJegqq16HeYKve9Dw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:17:55.855979Z","signed_message":"canonical_sha256_bytes"},"source_id":"1910.14025","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dd2aca2a100e385388f81a83dc04ec70f742687cbdf355090a210fd5e66a4333","sha256:35bebe6c2c266fa72c26f5d0b888ea29b225b4dfb759ef7147a919a77be9d1e5"],"state_sha256":"d273608b76b78d7d218777f79b0962433e75402e5b7883e6f6d40a8d1aa5acdc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UNIi81D7NUetGgp3Nt87ff8lgqx6lq/dFmEGhvoz22y8+rT2Azr5Oeyj4S4FqEsQtOzU5tgHjOjaLlcp+Ej0Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T08:02:58.380845Z","bundle_sha256":"21046b3fecd94c6c265196c2a7c8ed40a83fa13b82a5e661c302388ccf46c38e"}}