{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:Y2WZSB3332MT7PLB332XGFAJGL","short_pith_number":"pith:Y2WZSB33","canonical_record":{"source":{"id":"1301.6870","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2013-01-29T09:29:54Z","cross_cats_sorted":[],"title_canon_sha256":"87515b88fb129d9cb83df44e895e8e9c96845a09ee164c0463509f3c78182414","abstract_canon_sha256":"711c1b6bd00e44c5c9af24ef023dc1cf34544f94709329528499d3b3b76c46a8"},"schema_version":"1.0"},"canonical_sha256":"c6ad99077bde993fbd61def573140932d459bd6dcdfdeef10753638a9e80d34e","source":{"kind":"arxiv","id":"1301.6870","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.6870","created_at":"2026-05-18T03:35:12Z"},{"alias_kind":"arxiv_version","alias_value":"1301.6870v1","created_at":"2026-05-18T03:35:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.6870","created_at":"2026-05-18T03:35:12Z"},{"alias_kind":"pith_short_12","alias_value":"Y2WZSB3332MT","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"Y2WZSB3332MT7PLB","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"Y2WZSB33","created_at":"2026-05-18T12:28:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:Y2WZSB3332MT7PLB332XGFAJGL","target":"record","payload":{"canonical_record":{"source":{"id":"1301.6870","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2013-01-29T09:29:54Z","cross_cats_sorted":[],"title_canon_sha256":"87515b88fb129d9cb83df44e895e8e9c96845a09ee164c0463509f3c78182414","abstract_canon_sha256":"711c1b6bd00e44c5c9af24ef023dc1cf34544f94709329528499d3b3b76c46a8"},"schema_version":"1.0"},"canonical_sha256":"c6ad99077bde993fbd61def573140932d459bd6dcdfdeef10753638a9e80d34e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:35:12.096635Z","signature_b64":"VBFRoIjHXVfAPT1NB68JqaPv3aoJv9PqdmQ1cP7KRbCVKOKaKPZtznLSD88vu7yDS17Gx+QAIX1gJMXcOq9XAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c6ad99077bde993fbd61def573140932d459bd6dcdfdeef10753638a9e80d34e","last_reissued_at":"2026-05-18T03:35:12.095823Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:35:12.095823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.6870","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":"2026-05-18T03:35:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2KW98oSK/C3EqWhxl50Uu4x4v2p/yT8ByuWOois8KT4bUneJi+dkFMcD/xeifbhdPNlG355rssZ+/SVQh1jiCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T04:22:38.529711Z"},"content_sha256":"516790d0e59a4cc76edd1f50018bb48c455e5bc87cc53233d7d209a5c04e3bc4","schema_version":"1.0","event_id":"sha256:516790d0e59a4cc76edd1f50018bb48c455e5bc87cc53233d7d209a5c04e3bc4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:Y2WZSB3332MT7PLB332XGFAJGL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Studying User Footprints in Different Online Social Networks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SI","authors_text":"Anshu Malhotra, Luam Totti, Ponnurangam Kumaraguru, Virgilio Almeida, Wagner Meira Jr.","submitted_at":"2013-01-29T09:29:54Z","abstract_excerpt":"With the growing popularity and usage of online social media services, people now have accounts (some times several) on multiple and diverse services like Facebook, LinkedIn, Twitter and YouTube. Publicly available information can be used to create a digital footprint of any user using these social media services. Generating such digital footprints can be very useful for personalization, profile management, detecting malicious behavior of users. A very important application of analyzing users' online digital footprints is to protect users from potential privacy and security risks arising from "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.6870","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":"2026-05-18T03:35:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I0vU1Ab19YhBijm5POl9JJgP3cLyyCX9VaNgQtuIMX5b2m6urnDeLHDR/pKoAKF1dt32FRAjj7ilaIJZIs56CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T04:22:38.530396Z"},"content_sha256":"b8cad2b912db698a71d343b6e0cdae31e8ebc5dd9b7e7fdcaf8b0a81ef3caec0","schema_version":"1.0","event_id":"sha256:b8cad2b912db698a71d343b6e0cdae31e8ebc5dd9b7e7fdcaf8b0a81ef3caec0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y2WZSB3332MT7PLB332XGFAJGL/bundle.json","state_url":"https://pith.science/pith/Y2WZSB3332MT7PLB332XGFAJGL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y2WZSB3332MT7PLB332XGFAJGL/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":"2026-06-07T04:22:38Z","links":{"resolver":"https://pith.science/pith/Y2WZSB3332MT7PLB332XGFAJGL","bundle":"https://pith.science/pith/Y2WZSB3332MT7PLB332XGFAJGL/bundle.json","state":"https://pith.science/pith/Y2WZSB3332MT7PLB332XGFAJGL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y2WZSB3332MT7PLB332XGFAJGL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:Y2WZSB3332MT7PLB332XGFAJGL","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":"711c1b6bd00e44c5c9af24ef023dc1cf34544f94709329528499d3b3b76c46a8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2013-01-29T09:29:54Z","title_canon_sha256":"87515b88fb129d9cb83df44e895e8e9c96845a09ee164c0463509f3c78182414"},"schema_version":"1.0","source":{"id":"1301.6870","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.6870","created_at":"2026-05-18T03:35:12Z"},{"alias_kind":"arxiv_version","alias_value":"1301.6870v1","created_at":"2026-05-18T03:35:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.6870","created_at":"2026-05-18T03:35:12Z"},{"alias_kind":"pith_short_12","alias_value":"Y2WZSB3332MT","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"Y2WZSB3332MT7PLB","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"Y2WZSB33","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:b8cad2b912db698a71d343b6e0cdae31e8ebc5dd9b7e7fdcaf8b0a81ef3caec0","target":"graph","created_at":"2026-05-18T03:35:12Z","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 the growing popularity and usage of online social media services, people now have accounts (some times several) on multiple and diverse services like Facebook, LinkedIn, Twitter and YouTube. Publicly available information can be used to create a digital footprint of any user using these social media services. Generating such digital footprints can be very useful for personalization, profile management, detecting malicious behavior of users. A very important application of analyzing users' online digital footprints is to protect users from potential privacy and security risks arising from ","authors_text":"Anshu Malhotra, Luam Totti, Ponnurangam Kumaraguru, Virgilio Almeida, Wagner Meira Jr.","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2013-01-29T09:29:54Z","title":"Studying User Footprints in Different Online Social Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.6870","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":"sha256:516790d0e59a4cc76edd1f50018bb48c455e5bc87cc53233d7d209a5c04e3bc4","target":"record","created_at":"2026-05-18T03:35:12Z","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":"711c1b6bd00e44c5c9af24ef023dc1cf34544f94709329528499d3b3b76c46a8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2013-01-29T09:29:54Z","title_canon_sha256":"87515b88fb129d9cb83df44e895e8e9c96845a09ee164c0463509f3c78182414"},"schema_version":"1.0","source":{"id":"1301.6870","kind":"arxiv","version":1}},"canonical_sha256":"c6ad99077bde993fbd61def573140932d459bd6dcdfdeef10753638a9e80d34e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c6ad99077bde993fbd61def573140932d459bd6dcdfdeef10753638a9e80d34e","first_computed_at":"2026-05-18T03:35:12.095823Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:35:12.095823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VBFRoIjHXVfAPT1NB68JqaPv3aoJv9PqdmQ1cP7KRbCVKOKaKPZtznLSD88vu7yDS17Gx+QAIX1gJMXcOq9XAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:35:12.096635Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.6870","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:516790d0e59a4cc76edd1f50018bb48c455e5bc87cc53233d7d209a5c04e3bc4","sha256:b8cad2b912db698a71d343b6e0cdae31e8ebc5dd9b7e7fdcaf8b0a81ef3caec0"],"state_sha256":"10884bd1b516979d742d4d6b5c2cc0b03244a9741a8d544e3a88c462a65c1097"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wid3TPoMQumfFyg7SQPZOezRYp+E1kzvXCyhFoqNoxywcAQTcjHT0JtNmmrmF5wrX2S8OYP7u6BO2hfCo1aEBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T04:22:38.534225Z","bundle_sha256":"e07edae4262c9a90f63d8e8ed2f3bb1ebf3ffbdbf11aff3df1efc09d0badc5a4"}}