{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:EQZCA3GOJZNX36U7BEKF2O7XJ3","short_pith_number":"pith:EQZCA3GO","canonical_record":{"source":{"id":"1804.08584","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2018-04-23T17:23:19Z","cross_cats_sorted":["physics.soc-ph"],"title_canon_sha256":"545447e49f52b6e6cf983bd4c2505675ccb99d3f37257108b415c32f308cd4e3","abstract_canon_sha256":"75d3e606694caf746ce02577027538f7793facdd7d30f24c785516b62ebb69d9"},"schema_version":"1.0"},"canonical_sha256":"2432206cce4e5b7dfa9f09145d3bf74ed60cc6728f8c8bc7bed3c39a578fa2ba","source":{"kind":"arxiv","id":"1804.08584","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.08584","created_at":"2026-05-18T00:17:47Z"},{"alias_kind":"arxiv_version","alias_value":"1804.08584v1","created_at":"2026-05-18T00:17:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.08584","created_at":"2026-05-18T00:17:47Z"},{"alias_kind":"pith_short_12","alias_value":"EQZCA3GOJZNX","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"EQZCA3GOJZNX36U7","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"EQZCA3GO","created_at":"2026-05-18T12:32:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:EQZCA3GOJZNX36U7BEKF2O7XJ3","target":"record","payload":{"canonical_record":{"source":{"id":"1804.08584","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2018-04-23T17:23:19Z","cross_cats_sorted":["physics.soc-ph"],"title_canon_sha256":"545447e49f52b6e6cf983bd4c2505675ccb99d3f37257108b415c32f308cd4e3","abstract_canon_sha256":"75d3e606694caf746ce02577027538f7793facdd7d30f24c785516b62ebb69d9"},"schema_version":"1.0"},"canonical_sha256":"2432206cce4e5b7dfa9f09145d3bf74ed60cc6728f8c8bc7bed3c39a578fa2ba","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:17:47.816914Z","signature_b64":"n9JlHjl17osHpL6jGtD7LR33acEytbHgWXgzc94aE7tp8voxTtclpEv9nwVA9kJsWhWwEAsG11SfPdMCcCV0DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2432206cce4e5b7dfa9f09145d3bf74ed60cc6728f8c8bc7bed3c39a578fa2ba","last_reissued_at":"2026-05-18T00:17:47.816201Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:17:47.816201Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.08584","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":"2026-05-18T00:17:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zS75aCQcR7ZBgm10ySaJeMcbPqcMs8F5gF2V1bNpLzQx6OA49t9Z1KGtf8kdyl4uGz05zYB8+4qh6gBuOQnIDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T10:10:34.695894Z"},"content_sha256":"e864638e11cf0064a6e66707a8eb30048c3a7815874711e23cb125a1f98ad041","schema_version":"1.0","event_id":"sha256:e864638e11cf0064a6e66707a8eb30048c3a7815874711e23cb125a1f98ad041"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:EQZCA3GOJZNX36U7BEKF2O7XJ3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Leveraging Friendship Networks for Dynamic Link Prediction in Social Interaction Networks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.soc-ph"],"primary_cat":"cs.SI","authors_text":"Kevin S. Xu, Ruthwik R. Junuthula, Vijay K. Devabhaktuni","submitted_at":"2018-04-23T17:23:19Z","abstract_excerpt":"On-line social networks (OSNs) often contain many different types of relationships between users. When studying the structure of OSNs such as Facebook, two of the most commonly studied networks are friendship and interaction networks. The link prediction problem in friendship networks has been heavily studied. There has also been prior work on link prediction in interaction networks, independent of friendship networks. In this paper, we study the predictive power of combining friendship and interaction networks. We hypothesize that, by leveraging friendship networks, we can improve the accurac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.08584","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":"2026-05-18T00:17:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3ou5ESGpubQRwJ1jhaXlEwBmltDGgP6uA9vZMzG5YrK+y0cgG5uWF2Cnyw4W2Alt3+V91eXlndu5Rg4z5crWAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T10:10:34.696239Z"},"content_sha256":"dc492762c86def3c8d68c4465ce6096fa1c1ceac62228728d8dbeb217f03aef4","schema_version":"1.0","event_id":"sha256:dc492762c86def3c8d68c4465ce6096fa1c1ceac62228728d8dbeb217f03aef4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EQZCA3GOJZNX36U7BEKF2O7XJ3/bundle.json","state_url":"https://pith.science/pith/EQZCA3GOJZNX36U7BEKF2O7XJ3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EQZCA3GOJZNX36U7BEKF2O7XJ3/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":"2026-06-08T10:10:34Z","links":{"resolver":"https://pith.science/pith/EQZCA3GOJZNX36U7BEKF2O7XJ3","bundle":"https://pith.science/pith/EQZCA3GOJZNX36U7BEKF2O7XJ3/bundle.json","state":"https://pith.science/pith/EQZCA3GOJZNX36U7BEKF2O7XJ3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EQZCA3GOJZNX36U7BEKF2O7XJ3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:EQZCA3GOJZNX36U7BEKF2O7XJ3","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":"75d3e606694caf746ce02577027538f7793facdd7d30f24c785516b62ebb69d9","cross_cats_sorted":["physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2018-04-23T17:23:19Z","title_canon_sha256":"545447e49f52b6e6cf983bd4c2505675ccb99d3f37257108b415c32f308cd4e3"},"schema_version":"1.0","source":{"id":"1804.08584","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.08584","created_at":"2026-05-18T00:17:47Z"},{"alias_kind":"arxiv_version","alias_value":"1804.08584v1","created_at":"2026-05-18T00:17:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.08584","created_at":"2026-05-18T00:17:47Z"},{"alias_kind":"pith_short_12","alias_value":"EQZCA3GOJZNX","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"EQZCA3GOJZNX36U7","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"EQZCA3GO","created_at":"2026-05-18T12:32:22Z"}],"graph_snapshots":[{"event_id":"sha256:dc492762c86def3c8d68c4465ce6096fa1c1ceac62228728d8dbeb217f03aef4","target":"graph","created_at":"2026-05-18T00:17:47Z","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":"On-line social networks (OSNs) often contain many different types of relationships between users. When studying the structure of OSNs such as Facebook, two of the most commonly studied networks are friendship and interaction networks. The link prediction problem in friendship networks has been heavily studied. There has also been prior work on link prediction in interaction networks, independent of friendship networks. In this paper, we study the predictive power of combining friendship and interaction networks. We hypothesize that, by leveraging friendship networks, we can improve the accurac","authors_text":"Kevin S. Xu, Ruthwik R. Junuthula, Vijay K. Devabhaktuni","cross_cats":["physics.soc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2018-04-23T17:23:19Z","title":"Leveraging Friendship Networks for Dynamic Link Prediction in Social Interaction Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.08584","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:e864638e11cf0064a6e66707a8eb30048c3a7815874711e23cb125a1f98ad041","target":"record","created_at":"2026-05-18T00:17:47Z","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":"75d3e606694caf746ce02577027538f7793facdd7d30f24c785516b62ebb69d9","cross_cats_sorted":["physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2018-04-23T17:23:19Z","title_canon_sha256":"545447e49f52b6e6cf983bd4c2505675ccb99d3f37257108b415c32f308cd4e3"},"schema_version":"1.0","source":{"id":"1804.08584","kind":"arxiv","version":1}},"canonical_sha256":"2432206cce4e5b7dfa9f09145d3bf74ed60cc6728f8c8bc7bed3c39a578fa2ba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2432206cce4e5b7dfa9f09145d3bf74ed60cc6728f8c8bc7bed3c39a578fa2ba","first_computed_at":"2026-05-18T00:17:47.816201Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:17:47.816201Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"n9JlHjl17osHpL6jGtD7LR33acEytbHgWXgzc94aE7tp8voxTtclpEv9nwVA9kJsWhWwEAsG11SfPdMCcCV0DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:17:47.816914Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.08584","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e864638e11cf0064a6e66707a8eb30048c3a7815874711e23cb125a1f98ad041","sha256:dc492762c86def3c8d68c4465ce6096fa1c1ceac62228728d8dbeb217f03aef4"],"state_sha256":"05a3d085e7f28646b45aad16c6b2cdc04d74e7708239c2bb3c74a4174abf8bec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ChkzSnjoaJZp+MsTUvMq95Nh7c6WxieL59Ex6qU747ZFinkpW+4ekhMjDpkyxkWMXufjna9D1fqRwNleidy4CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T10:10:34.698151Z","bundle_sha256":"bf61f2ef67ea4c51db851c25435c5a51a775a85a0b31d6f1be5d535148470ff1"}}