{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:HIY57ZB5S6KWL55RSQHXLQRTKQ","short_pith_number":"pith:HIY57ZB5","canonical_record":{"source":{"id":"1112.1115","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2011-12-05T22:41:47Z","cross_cats_sorted":["physics.soc-ph"],"title_canon_sha256":"fea9d3dfe619232925e9afd3b4dfef272150819cd6efc63761385e1d7acc310e","abstract_canon_sha256":"f5767aba2c6f637f6a3fb92c1f2ec8e7c85a9c4ca199624c56b5d78e8cbfaafc"},"schema_version":"1.0"},"canonical_sha256":"3a31dfe43d979565f7b1940f75c2335428f302b48e89853720ea841c6f2355bb","source":{"kind":"arxiv","id":"1112.1115","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.1115","created_at":"2026-05-18T03:29:38Z"},{"alias_kind":"arxiv_version","alias_value":"1112.1115v2","created_at":"2026-05-18T03:29:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.1115","created_at":"2026-05-18T03:29:38Z"},{"alias_kind":"pith_short_12","alias_value":"HIY57ZB5S6KW","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"HIY57ZB5S6KWL55R","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"HIY57ZB5","created_at":"2026-05-18T12:26:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:HIY57ZB5S6KWL55RSQHXLQRTKQ","target":"record","payload":{"canonical_record":{"source":{"id":"1112.1115","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2011-12-05T22:41:47Z","cross_cats_sorted":["physics.soc-ph"],"title_canon_sha256":"fea9d3dfe619232925e9afd3b4dfef272150819cd6efc63761385e1d7acc310e","abstract_canon_sha256":"f5767aba2c6f637f6a3fb92c1f2ec8e7c85a9c4ca199624c56b5d78e8cbfaafc"},"schema_version":"1.0"},"canonical_sha256":"3a31dfe43d979565f7b1940f75c2335428f302b48e89853720ea841c6f2355bb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:29:38.672204Z","signature_b64":"8uO40kAHxDmX2IeqXgyIy0idLku/8V00AfjA/EgSz9NVridJLy0jALS7PqKe1B+whDetZITl7Fx5SPYCgD4yCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3a31dfe43d979565f7b1940f75c2335428f302b48e89853720ea841c6f2355bb","last_reissued_at":"2026-05-18T03:29:38.671749Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:29:38.671749Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1112.1115","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":"2026-05-18T03:29:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dEC5vLtWu7bTp2lBZoQ598QTnEPjjQrjCJjE8yroKTJ0L05FJ8zwu8rK+hxE02OKBk4FOD4JAVweId6UwJrJAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T05:48:27.436171Z"},"content_sha256":"d2c89eb672f8b0219f1a35f5d3f6b065cd9bfc6f175b6bbc1bc6aa4e6080ecd5","schema_version":"1.0","event_id":"sha256:d2c89eb672f8b0219f1a35f5d3f6b065cd9bfc6f175b6bbc1bc6aa4e6080ecd5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:HIY57ZB5S6KWL55RSQHXLQRTKQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Interplay between Social and Topical Structure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.soc-ph"],"primary_cat":"cs.SI","authors_text":"Chenhao Tan, Daniel M. Romero, Johan Ugander","submitted_at":"2011-12-05T22:41:47Z","abstract_excerpt":"People's interests and people's social relationships are intuitively connected, but understanding their interplay and whether they can help predict each other has remained an open question. We examine the interface of two decisive structures forming the backbone of online social media: the graph structure of social networks - who connects with whom - and the set structure of topical affiliations - who is interested in what. In studying this interface, we identify key relationships whereby each of these structures can be understood in terms of the other. The context for our analysis is Twitter,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.1115","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":""},"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":"2026-05-18T03:29:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hAeTq1OyXE3ZJGYp/ZqnwOM5ny9brcBnYC1kGKS92tmxysIx3Ue9Gc/uyS8lYRMuSfzjecPxdqq/tuT0g14YCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T05:48:27.436536Z"},"content_sha256":"623d451982a7ea2c8338556a1296e2cda39c216e0933b3f1e11bad63ece8e73c","schema_version":"1.0","event_id":"sha256:623d451982a7ea2c8338556a1296e2cda39c216e0933b3f1e11bad63ece8e73c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HIY57ZB5S6KWL55RSQHXLQRTKQ/bundle.json","state_url":"https://pith.science/pith/HIY57ZB5S6KWL55RSQHXLQRTKQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HIY57ZB5S6KWL55RSQHXLQRTKQ/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":"2026-06-07T05:48:27Z","links":{"resolver":"https://pith.science/pith/HIY57ZB5S6KWL55RSQHXLQRTKQ","bundle":"https://pith.science/pith/HIY57ZB5S6KWL55RSQHXLQRTKQ/bundle.json","state":"https://pith.science/pith/HIY57ZB5S6KWL55RSQHXLQRTKQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HIY57ZB5S6KWL55RSQHXLQRTKQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:HIY57ZB5S6KWL55RSQHXLQRTKQ","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":"f5767aba2c6f637f6a3fb92c1f2ec8e7c85a9c4ca199624c56b5d78e8cbfaafc","cross_cats_sorted":["physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2011-12-05T22:41:47Z","title_canon_sha256":"fea9d3dfe619232925e9afd3b4dfef272150819cd6efc63761385e1d7acc310e"},"schema_version":"1.0","source":{"id":"1112.1115","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.1115","created_at":"2026-05-18T03:29:38Z"},{"alias_kind":"arxiv_version","alias_value":"1112.1115v2","created_at":"2026-05-18T03:29:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.1115","created_at":"2026-05-18T03:29:38Z"},{"alias_kind":"pith_short_12","alias_value":"HIY57ZB5S6KW","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"HIY57ZB5S6KWL55R","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"HIY57ZB5","created_at":"2026-05-18T12:26:30Z"}],"graph_snapshots":[{"event_id":"sha256:623d451982a7ea2c8338556a1296e2cda39c216e0933b3f1e11bad63ece8e73c","target":"graph","created_at":"2026-05-18T03:29:38Z","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":"People's interests and people's social relationships are intuitively connected, but understanding their interplay and whether they can help predict each other has remained an open question. We examine the interface of two decisive structures forming the backbone of online social media: the graph structure of social networks - who connects with whom - and the set structure of topical affiliations - who is interested in what. In studying this interface, we identify key relationships whereby each of these structures can be understood in terms of the other. The context for our analysis is Twitter,","authors_text":"Chenhao Tan, Daniel M. Romero, Johan Ugander","cross_cats":["physics.soc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2011-12-05T22:41:47Z","title":"On the Interplay between Social and Topical Structure"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.1115","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:d2c89eb672f8b0219f1a35f5d3f6b065cd9bfc6f175b6bbc1bc6aa4e6080ecd5","target":"record","created_at":"2026-05-18T03:29:38Z","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":"f5767aba2c6f637f6a3fb92c1f2ec8e7c85a9c4ca199624c56b5d78e8cbfaafc","cross_cats_sorted":["physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2011-12-05T22:41:47Z","title_canon_sha256":"fea9d3dfe619232925e9afd3b4dfef272150819cd6efc63761385e1d7acc310e"},"schema_version":"1.0","source":{"id":"1112.1115","kind":"arxiv","version":2}},"canonical_sha256":"3a31dfe43d979565f7b1940f75c2335428f302b48e89853720ea841c6f2355bb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3a31dfe43d979565f7b1940f75c2335428f302b48e89853720ea841c6f2355bb","first_computed_at":"2026-05-18T03:29:38.671749Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:29:38.671749Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8uO40kAHxDmX2IeqXgyIy0idLku/8V00AfjA/EgSz9NVridJLy0jALS7PqKe1B+whDetZITl7Fx5SPYCgD4yCw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:29:38.672204Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.1115","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d2c89eb672f8b0219f1a35f5d3f6b065cd9bfc6f175b6bbc1bc6aa4e6080ecd5","sha256:623d451982a7ea2c8338556a1296e2cda39c216e0933b3f1e11bad63ece8e73c"],"state_sha256":"e12c35a8c125cf018fbab718384376336204fbc4d4b42af583b256e9836a038e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GbRQduy6CQx7cInFN6gr6BZlUv0qq5HZ0BcQx4hBJhv9NawL/VadpkcROZO2KqIzVTY6ONgivF2HLbd/GdpwDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T05:48:27.438860Z","bundle_sha256":"ce25b6c4a1e4a34c89af5f4f2723127f26098862d94aa0c01d77e95bc7974c06"}}