{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:P6EKFAERHLXM3QRXZ5F5PRQ2VI","short_pith_number":"pith:P6EKFAER","canonical_record":{"source":{"id":"1210.1048","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.soc-ph","submitted_at":"2012-10-03T09:40:36Z","cross_cats_sorted":["cs.SI","physics.data-an","stat.ML"],"title_canon_sha256":"36d0f6a4a8775676780310a076307cc358156f1d6da86f6265b92e5549194c27","abstract_canon_sha256":"f9c0b8cbbe01bf06638626f750190d6f4b002a9308b8a6504c2f6a024dbc0d56"},"schema_version":"1.0"},"canonical_sha256":"7f88a280913aeecdc237cf4bd7c61aaa3e39d588d910c23b5c2c9238d2ea53c4","source":{"kind":"arxiv","id":"1210.1048","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.1048","created_at":"2026-05-18T03:44:04Z"},{"alias_kind":"arxiv_version","alias_value":"1210.1048v1","created_at":"2026-05-18T03:44:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.1048","created_at":"2026-05-18T03:44:04Z"},{"alias_kind":"pith_short_12","alias_value":"P6EKFAERHLXM","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"P6EKFAERHLXM3QRX","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"P6EKFAER","created_at":"2026-05-18T12:27:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:P6EKFAERHLXM3QRXZ5F5PRQ2VI","target":"record","payload":{"canonical_record":{"source":{"id":"1210.1048","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.soc-ph","submitted_at":"2012-10-03T09:40:36Z","cross_cats_sorted":["cs.SI","physics.data-an","stat.ML"],"title_canon_sha256":"36d0f6a4a8775676780310a076307cc358156f1d6da86f6265b92e5549194c27","abstract_canon_sha256":"f9c0b8cbbe01bf06638626f750190d6f4b002a9308b8a6504c2f6a024dbc0d56"},"schema_version":"1.0"},"canonical_sha256":"7f88a280913aeecdc237cf4bd7c61aaa3e39d588d910c23b5c2c9238d2ea53c4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:44:04.048665Z","signature_b64":"NY6Kglh2NaEqrYchkduAm2FAcm+pab2rtcZyXu3cVayD71TvxmWVIL2i/5jbtQQy1dEGD6CNa68JDhl6vKsHCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f88a280913aeecdc237cf4bd7c61aaa3e39d588d910c23b5c2c9238d2ea53c4","last_reissued_at":"2026-05-18T03:44:04.047945Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:44:04.047945Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.1048","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":"2026-05-18T03:44:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/rRl4rfCHgYM3XChaby1yJd7hj0y11Z32VK8XDAZURPIREgct7gryqvcoc1Yd9+P5KzSeLNUtA+XcHt+A0tDDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:11:55.693738Z"},"content_sha256":"bbc8e331037cf8a698bb93e3d09a45e3b6cd4d468defcdcc88e275fb593ba0e6","schema_version":"1.0","event_id":"sha256:bbc8e331037cf8a698bb93e3d09a45e3b6cd4d468defcdcc88e275fb593ba0e6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:P6EKFAERHLXM3QRXZ5F5PRQ2VI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Predicting human preferences using the block structure of complex social networks","license":"http://creativecommons.org/licenses/by/3.0/","headline":"","cross_cats":["cs.SI","physics.data-an","stat.ML"],"primary_cat":"physics.soc-ph","authors_text":"Alejandro Llorente, Esteban Moro, Marta Sales-Pardo, Roger Guimera","submitted_at":"2012-10-03T09:40:36Z","abstract_excerpt":"With ever-increasing available data, predicting individuals' preferences and helping them locate the most relevant information has become a pressing need. Understanding and predicting preferences is also important from a fundamental point of view, as part of what has been called a \"new\" computational social science. Here, we propose a novel approach based on stochastic block models, which have been developed by sociologists as plausible models of complex networks of social interactions. Our model is in the spirit of predicting individuals' preferences based on the preferences of others but, ra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.1048","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":"2026-05-18T03:44:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mLA3n5wKUWznotEELRpBbQR8gtLokvLLswk/cNzWyzzOedSsJG7rO+qBBV0zPC8XrBMZsHue29/R7RIrzm9iAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:11:55.694359Z"},"content_sha256":"ee76a1e643e42532d6d1acb7f2fbd1892fd20996dce9c36f7f8976340db9237d","schema_version":"1.0","event_id":"sha256:ee76a1e643e42532d6d1acb7f2fbd1892fd20996dce9c36f7f8976340db9237d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P6EKFAERHLXM3QRXZ5F5PRQ2VI/bundle.json","state_url":"https://pith.science/pith/P6EKFAERHLXM3QRXZ5F5PRQ2VI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P6EKFAERHLXM3QRXZ5F5PRQ2VI/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":"2026-05-30T13:11:55Z","links":{"resolver":"https://pith.science/pith/P6EKFAERHLXM3QRXZ5F5PRQ2VI","bundle":"https://pith.science/pith/P6EKFAERHLXM3QRXZ5F5PRQ2VI/bundle.json","state":"https://pith.science/pith/P6EKFAERHLXM3QRXZ5F5PRQ2VI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P6EKFAERHLXM3QRXZ5F5PRQ2VI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:P6EKFAERHLXM3QRXZ5F5PRQ2VI","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":"f9c0b8cbbe01bf06638626f750190d6f4b002a9308b8a6504c2f6a024dbc0d56","cross_cats_sorted":["cs.SI","physics.data-an","stat.ML"],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.soc-ph","submitted_at":"2012-10-03T09:40:36Z","title_canon_sha256":"36d0f6a4a8775676780310a076307cc358156f1d6da86f6265b92e5549194c27"},"schema_version":"1.0","source":{"id":"1210.1048","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.1048","created_at":"2026-05-18T03:44:04Z"},{"alias_kind":"arxiv_version","alias_value":"1210.1048v1","created_at":"2026-05-18T03:44:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.1048","created_at":"2026-05-18T03:44:04Z"},{"alias_kind":"pith_short_12","alias_value":"P6EKFAERHLXM","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"P6EKFAERHLXM3QRX","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"P6EKFAER","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:ee76a1e643e42532d6d1acb7f2fbd1892fd20996dce9c36f7f8976340db9237d","target":"graph","created_at":"2026-05-18T03:44:04Z","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":"With ever-increasing available data, predicting individuals' preferences and helping them locate the most relevant information has become a pressing need. Understanding and predicting preferences is also important from a fundamental point of view, as part of what has been called a \"new\" computational social science. Here, we propose a novel approach based on stochastic block models, which have been developed by sociologists as plausible models of complex networks of social interactions. Our model is in the spirit of predicting individuals' preferences based on the preferences of others but, ra","authors_text":"Alejandro Llorente, Esteban Moro, Marta Sales-Pardo, Roger Guimera","cross_cats":["cs.SI","physics.data-an","stat.ML"],"headline":"","license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.soc-ph","submitted_at":"2012-10-03T09:40:36Z","title":"Predicting human preferences using the block structure of complex social networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.1048","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:bbc8e331037cf8a698bb93e3d09a45e3b6cd4d468defcdcc88e275fb593ba0e6","target":"record","created_at":"2026-05-18T03:44:04Z","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":"f9c0b8cbbe01bf06638626f750190d6f4b002a9308b8a6504c2f6a024dbc0d56","cross_cats_sorted":["cs.SI","physics.data-an","stat.ML"],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.soc-ph","submitted_at":"2012-10-03T09:40:36Z","title_canon_sha256":"36d0f6a4a8775676780310a076307cc358156f1d6da86f6265b92e5549194c27"},"schema_version":"1.0","source":{"id":"1210.1048","kind":"arxiv","version":1}},"canonical_sha256":"7f88a280913aeecdc237cf4bd7c61aaa3e39d588d910c23b5c2c9238d2ea53c4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f88a280913aeecdc237cf4bd7c61aaa3e39d588d910c23b5c2c9238d2ea53c4","first_computed_at":"2026-05-18T03:44:04.047945Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:44:04.047945Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NY6Kglh2NaEqrYchkduAm2FAcm+pab2rtcZyXu3cVayD71TvxmWVIL2i/5jbtQQy1dEGD6CNa68JDhl6vKsHCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:44:04.048665Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.1048","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bbc8e331037cf8a698bb93e3d09a45e3b6cd4d468defcdcc88e275fb593ba0e6","sha256:ee76a1e643e42532d6d1acb7f2fbd1892fd20996dce9c36f7f8976340db9237d"],"state_sha256":"d048d4c9abb1377f4212de4e08bef4f62b84fdee96e611eeb4cc9ccde74610da"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yZfhds9tuFLps2QuXSRCCEKiak0LWmwgZZF0igUIMxQAw3bk0Xt1pmbGX9HSfMo4IwCH6TRQnJHqP0ohN3hfDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T13:11:55.697205Z","bundle_sha256":"8fdffb2dc4290d40a222068d58bcf48135404aca6ca106341b714e58cb2f5335"}}