{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:J4Q6CXW6TVO3ET5U6YZVMV6SM7","short_pith_number":"pith:J4Q6CXW6","canonical_record":{"source":{"id":"1902.01832","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2019-02-05T18:11:11Z","cross_cats_sorted":["cs.SI"],"title_canon_sha256":"b318fdc3c8ccccebe633129528a77309e108a8303f0939f085c4c2416451a8e9","abstract_canon_sha256":"7fa6029c6ff9b39307813cada1a43d304144e2e07640fca672f6fa98298b9d5a"},"schema_version":"1.0"},"canonical_sha256":"4f21e15ede9d5db24fb4f6335657d267dd2c0247d5c011b3968ee865908be313","source":{"kind":"arxiv","id":"1902.01832","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.01832","created_at":"2026-05-17T23:54:42Z"},{"alias_kind":"arxiv_version","alias_value":"1902.01832v1","created_at":"2026-05-17T23:54:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.01832","created_at":"2026-05-17T23:54:42Z"},{"alias_kind":"pith_short_12","alias_value":"J4Q6CXW6TVO3","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"J4Q6CXW6TVO3ET5U","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"J4Q6CXW6","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:J4Q6CXW6TVO3ET5U6YZVMV6SM7","target":"record","payload":{"canonical_record":{"source":{"id":"1902.01832","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2019-02-05T18:11:11Z","cross_cats_sorted":["cs.SI"],"title_canon_sha256":"b318fdc3c8ccccebe633129528a77309e108a8303f0939f085c4c2416451a8e9","abstract_canon_sha256":"7fa6029c6ff9b39307813cada1a43d304144e2e07640fca672f6fa98298b9d5a"},"schema_version":"1.0"},"canonical_sha256":"4f21e15ede9d5db24fb4f6335657d267dd2c0247d5c011b3968ee865908be313","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:42.228907Z","signature_b64":"SwrbFY2RSMqOxVUJUBj3SSU2sY8hdoBiEcvJUFfJGwQcB6Kze/crnsk+QI4Dpgd1+XDvdUN3pmeIzPEQMxuvCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4f21e15ede9d5db24fb4f6335657d267dd2c0247d5c011b3968ee865908be313","last_reissued_at":"2026-05-17T23:54:42.228278Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:42.228278Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.01832","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":"2026-05-17T23:54:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hI0xMiSyaUwZgyKuCgpKf5LzopW1dt4OQw45UVyUGLrKmW37NU1akFPgN1XMV8Iw1ZVQRJZO5u3R/NttXVb4Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T05:19:41.713561Z"},"content_sha256":"6c2ee6e36fdbe199d0538ec21e61a53980f412cfa3a330f4c16c802c16c0358b","schema_version":"1.0","event_id":"sha256:6c2ee6e36fdbe199d0538ec21e61a53980f412cfa3a330f4c16c802c16c0358b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:J4Q6CXW6TVO3ET5U6YZVMV6SM7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Inferring the strength of social ties: a community-driven approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SI"],"primary_cat":"cs.DS","authors_text":"Aristides Gionis, Nikolaj Tatti, Polina Rozenshtein","submitted_at":"2019-02-05T18:11:11Z","abstract_excerpt":"Online social networks are growing and becoming denser. The social connections of a given person may have very high variability: from close friends and relatives to acquaintances to people who hardly know. Inferring the strength of social ties is an important ingredient for modeling the interaction of users in a network and understanding their behavior. Furthermore, the problem has applications in computational social science, viral marketing, and people recommendation.\n  In this paper we study the problem of inferring the strength of social ties in a given network. Our work is motivated by a "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.01832","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":"2026-05-17T23:54:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7Y+WBEzi6TSOggbN/8HPWY/R+/xmk+oE6fFMuCxH5H6s+hRJob7xGpZlKb13je3cJ0TEZRi+k46nhuT4FUz+CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T05:19:41.714290Z"},"content_sha256":"9708f213fda7c5ddfa35ef86263d13e4d700060dedc6c7a803af8027860a3989","schema_version":"1.0","event_id":"sha256:9708f213fda7c5ddfa35ef86263d13e4d700060dedc6c7a803af8027860a3989"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J4Q6CXW6TVO3ET5U6YZVMV6SM7/bundle.json","state_url":"https://pith.science/pith/J4Q6CXW6TVO3ET5U6YZVMV6SM7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J4Q6CXW6TVO3ET5U6YZVMV6SM7/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":"2026-06-08T05:19:41Z","links":{"resolver":"https://pith.science/pith/J4Q6CXW6TVO3ET5U6YZVMV6SM7","bundle":"https://pith.science/pith/J4Q6CXW6TVO3ET5U6YZVMV6SM7/bundle.json","state":"https://pith.science/pith/J4Q6CXW6TVO3ET5U6YZVMV6SM7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J4Q6CXW6TVO3ET5U6YZVMV6SM7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:J4Q6CXW6TVO3ET5U6YZVMV6SM7","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":"7fa6029c6ff9b39307813cada1a43d304144e2e07640fca672f6fa98298b9d5a","cross_cats_sorted":["cs.SI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2019-02-05T18:11:11Z","title_canon_sha256":"b318fdc3c8ccccebe633129528a77309e108a8303f0939f085c4c2416451a8e9"},"schema_version":"1.0","source":{"id":"1902.01832","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.01832","created_at":"2026-05-17T23:54:42Z"},{"alias_kind":"arxiv_version","alias_value":"1902.01832v1","created_at":"2026-05-17T23:54:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.01832","created_at":"2026-05-17T23:54:42Z"},{"alias_kind":"pith_short_12","alias_value":"J4Q6CXW6TVO3","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"J4Q6CXW6TVO3ET5U","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"J4Q6CXW6","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:9708f213fda7c5ddfa35ef86263d13e4d700060dedc6c7a803af8027860a3989","target":"graph","created_at":"2026-05-17T23:54:42Z","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":"Online social networks are growing and becoming denser. The social connections of a given person may have very high variability: from close friends and relatives to acquaintances to people who hardly know. Inferring the strength of social ties is an important ingredient for modeling the interaction of users in a network and understanding their behavior. Furthermore, the problem has applications in computational social science, viral marketing, and people recommendation.\n  In this paper we study the problem of inferring the strength of social ties in a given network. Our work is motivated by a ","authors_text":"Aristides Gionis, Nikolaj Tatti, Polina Rozenshtein","cross_cats":["cs.SI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2019-02-05T18:11:11Z","title":"Inferring the strength of social ties: a community-driven approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.01832","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":"sha256:6c2ee6e36fdbe199d0538ec21e61a53980f412cfa3a330f4c16c802c16c0358b","target":"record","created_at":"2026-05-17T23:54:42Z","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":"7fa6029c6ff9b39307813cada1a43d304144e2e07640fca672f6fa98298b9d5a","cross_cats_sorted":["cs.SI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2019-02-05T18:11:11Z","title_canon_sha256":"b318fdc3c8ccccebe633129528a77309e108a8303f0939f085c4c2416451a8e9"},"schema_version":"1.0","source":{"id":"1902.01832","kind":"arxiv","version":1}},"canonical_sha256":"4f21e15ede9d5db24fb4f6335657d267dd2c0247d5c011b3968ee865908be313","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4f21e15ede9d5db24fb4f6335657d267dd2c0247d5c011b3968ee865908be313","first_computed_at":"2026-05-17T23:54:42.228278Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:42.228278Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SwrbFY2RSMqOxVUJUBj3SSU2sY8hdoBiEcvJUFfJGwQcB6Kze/crnsk+QI4Dpgd1+XDvdUN3pmeIzPEQMxuvCg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:42.228907Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.01832","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6c2ee6e36fdbe199d0538ec21e61a53980f412cfa3a330f4c16c802c16c0358b","sha256:9708f213fda7c5ddfa35ef86263d13e4d700060dedc6c7a803af8027860a3989"],"state_sha256":"61ece7a36c5dd3a61e099610ca145ffc910022a58c2e56a853cc4587960ee2ec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wLKolM7LsyjIRuq2qpVe944k7xgChlvpJoFokzFKyq10TvpBklf72kPL0jPHQ0N51M0/8UDcEi4Fi1bVfXg1Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T05:19:41.718436Z","bundle_sha256":"c341fb90497ff3f1c383bbef455af9a38e579e0307dd4f881127494af473427a"}}