{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:PDNNY5II3DBNMEYAS33TEH7OKE","short_pith_number":"pith:PDNNY5II","canonical_record":{"source":{"id":"1202.2215","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2012-02-10T09:08:02Z","cross_cats_sorted":["physics.soc-ph"],"title_canon_sha256":"ef45d29c748681dc59ce64998418a9be00f3e41344399e1c51969ab5e92f6a2a","abstract_canon_sha256":"1bfd6cbc147996a51a6e57cca248c89ff03c94cce1036e28f232b9b83424e6b8"},"schema_version":"1.0"},"canonical_sha256":"78dadc7508d8c2d6130096f7321fee51338bfc984e37066a18a4d4045d0f32b3","source":{"kind":"arxiv","id":"1202.2215","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.2215","created_at":"2026-05-18T04:02:36Z"},{"alias_kind":"arxiv_version","alias_value":"1202.2215v1","created_at":"2026-05-18T04:02:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.2215","created_at":"2026-05-18T04:02:36Z"},{"alias_kind":"pith_short_12","alias_value":"PDNNY5II3DBN","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"PDNNY5II3DBNMEYA","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"PDNNY5II","created_at":"2026-05-18T12:27:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:PDNNY5II3DBNMEYAS33TEH7OKE","target":"record","payload":{"canonical_record":{"source":{"id":"1202.2215","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2012-02-10T09:08:02Z","cross_cats_sorted":["physics.soc-ph"],"title_canon_sha256":"ef45d29c748681dc59ce64998418a9be00f3e41344399e1c51969ab5e92f6a2a","abstract_canon_sha256":"1bfd6cbc147996a51a6e57cca248c89ff03c94cce1036e28f232b9b83424e6b8"},"schema_version":"1.0"},"canonical_sha256":"78dadc7508d8c2d6130096f7321fee51338bfc984e37066a18a4d4045d0f32b3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:02:36.893513Z","signature_b64":"lDZYPX2nMpYANxz7eExFj6xWZG41pvIuP2ysz9KywLtdqMsOhGW2NNRKFKsALZlhOHOWDARjZ7FhNR/FDkYZCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"78dadc7508d8c2d6130096f7321fee51338bfc984e37066a18a4d4045d0f32b3","last_reissued_at":"2026-05-18T04:02:36.892939Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:02:36.892939Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.2215","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":"2026-05-18T04:02:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RGBogWkg2jVMzbz/I79RrvZXjzEF3Mv6J6K75drxuiH1CdbNX4dWwh3VU1hVK3kVFYPXSlY6B8M4Zn47C0DFDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T17:54:05.082380Z"},"content_sha256":"055ba6dd473498d96b16ae514583f8ca4c3ed0c69d076d85ca7e951ea8de63a8","schema_version":"1.0","event_id":"sha256:055ba6dd473498d96b16ae514583f8ca4c3ed0c69d076d85ca7e951ea8de63a8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:PDNNY5II3DBNMEYAS33TEH7OKE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Topic Diffusion and Emergence of Virality in Social Networks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.soc-ph"],"primary_cat":"cs.SI","authors_text":"Amitabha Bagchi, Rudra M. Tripathy, Soham Das, S. Rajyalakshmi","submitted_at":"2012-02-10T09:08:02Z","abstract_excerpt":"We propose a stochastic model for the diffusion of topics entering a social network modeled by a Watts-Strogatz graph. Our model sets into play an implicit competition between these topics as they vie for the attention of users in the network. The dynamics of our model are based on notions taken from real-world OSNs like Twitter where users either adopt an exogenous topic or copy topics from their neighbors leading to endogenous propagation. When instantiated correctly, the model achieves a viral regime where a few topics garner unusually good response from the network, closely mimicking the b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.2215","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":"2026-05-18T04:02:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v9lDhUQftCzhG9kB/uFUjlA0b+WB+tlBw+uD8XaB6yJIsTIwxdWehQ3DTwvMp+lg/qJZigE+fltUW9o9pb7LBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T17:54:05.083022Z"},"content_sha256":"466cc413d76cb5b051a36f3762f9288b48d8856c67c038b0dc1ed28653129b16","schema_version":"1.0","event_id":"sha256:466cc413d76cb5b051a36f3762f9288b48d8856c67c038b0dc1ed28653129b16"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PDNNY5II3DBNMEYAS33TEH7OKE/bundle.json","state_url":"https://pith.science/pith/PDNNY5II3DBNMEYAS33TEH7OKE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PDNNY5II3DBNMEYAS33TEH7OKE/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":"2026-05-20T17:54:05Z","links":{"resolver":"https://pith.science/pith/PDNNY5II3DBNMEYAS33TEH7OKE","bundle":"https://pith.science/pith/PDNNY5II3DBNMEYAS33TEH7OKE/bundle.json","state":"https://pith.science/pith/PDNNY5II3DBNMEYAS33TEH7OKE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PDNNY5II3DBNMEYAS33TEH7OKE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:PDNNY5II3DBNMEYAS33TEH7OKE","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":"1bfd6cbc147996a51a6e57cca248c89ff03c94cce1036e28f232b9b83424e6b8","cross_cats_sorted":["physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2012-02-10T09:08:02Z","title_canon_sha256":"ef45d29c748681dc59ce64998418a9be00f3e41344399e1c51969ab5e92f6a2a"},"schema_version":"1.0","source":{"id":"1202.2215","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.2215","created_at":"2026-05-18T04:02:36Z"},{"alias_kind":"arxiv_version","alias_value":"1202.2215v1","created_at":"2026-05-18T04:02:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.2215","created_at":"2026-05-18T04:02:36Z"},{"alias_kind":"pith_short_12","alias_value":"PDNNY5II3DBN","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"PDNNY5II3DBNMEYA","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"PDNNY5II","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:466cc413d76cb5b051a36f3762f9288b48d8856c67c038b0dc1ed28653129b16","target":"graph","created_at":"2026-05-18T04:02:36Z","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":"We propose a stochastic model for the diffusion of topics entering a social network modeled by a Watts-Strogatz graph. Our model sets into play an implicit competition between these topics as they vie for the attention of users in the network. The dynamics of our model are based on notions taken from real-world OSNs like Twitter where users either adopt an exogenous topic or copy topics from their neighbors leading to endogenous propagation. When instantiated correctly, the model achieves a viral regime where a few topics garner unusually good response from the network, closely mimicking the b","authors_text":"Amitabha Bagchi, Rudra M. Tripathy, Soham Das, S. Rajyalakshmi","cross_cats":["physics.soc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2012-02-10T09:08:02Z","title":"Topic Diffusion and Emergence of Virality in Social Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.2215","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":"sha256:055ba6dd473498d96b16ae514583f8ca4c3ed0c69d076d85ca7e951ea8de63a8","target":"record","created_at":"2026-05-18T04:02:36Z","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":"1bfd6cbc147996a51a6e57cca248c89ff03c94cce1036e28f232b9b83424e6b8","cross_cats_sorted":["physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2012-02-10T09:08:02Z","title_canon_sha256":"ef45d29c748681dc59ce64998418a9be00f3e41344399e1c51969ab5e92f6a2a"},"schema_version":"1.0","source":{"id":"1202.2215","kind":"arxiv","version":1}},"canonical_sha256":"78dadc7508d8c2d6130096f7321fee51338bfc984e37066a18a4d4045d0f32b3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"78dadc7508d8c2d6130096f7321fee51338bfc984e37066a18a4d4045d0f32b3","first_computed_at":"2026-05-18T04:02:36.892939Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:02:36.892939Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lDZYPX2nMpYANxz7eExFj6xWZG41pvIuP2ysz9KywLtdqMsOhGW2NNRKFKsALZlhOHOWDARjZ7FhNR/FDkYZCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:02:36.893513Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.2215","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:055ba6dd473498d96b16ae514583f8ca4c3ed0c69d076d85ca7e951ea8de63a8","sha256:466cc413d76cb5b051a36f3762f9288b48d8856c67c038b0dc1ed28653129b16"],"state_sha256":"d406bf544d9ec190fb361979e261480b8c237907b2f020d06d2f325565c60fc5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M/X/JMtNdYHdcPDwVgxn+DOaqnrpy6aXmuOJ1xPKDIxtsmCBvScJ8HOczz+jzWdH9n3vQHCgtDMDIWzTHlZtAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T17:54:05.086520Z","bundle_sha256":"9952c03b62db0b5e61e661954b8a50a7e8909ee90c3f7b32f7b9007dae3e6bc4"}}