{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:VHDY3DJK5RB565NFBOI26EPUPS","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":"c38b2abb5cf8fc32cae9381e03fc71f793a1d826615e1e841b99de39ac0c703c","cross_cats_sorted":["physics.data-an","q-fin.GN"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2015-03-17T15:45:14Z","title_canon_sha256":"50400183d20fbc0e55f72a22f598eeef2d8e5a5a4e4a919c0ab3108ba43f5c34"},"schema_version":"1.0","source":{"id":"1503.05098","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.05098","created_at":"2026-05-18T01:25:18Z"},{"alias_kind":"arxiv_version","alias_value":"1503.05098v2","created_at":"2026-05-18T01:25:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.05098","created_at":"2026-05-18T01:25:18Z"},{"alias_kind":"pith_short_12","alias_value":"VHDY3DJK5RB5","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"VHDY3DJK5RB565NF","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"VHDY3DJK","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:517ede70e1a87288b8d77697bcf515c08c6c8acae7a38347dde21f865617676e","target":"graph","created_at":"2026-05-18T01:25:18Z","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":"Within the last fifteen years, network theory has been successfully applied both to natural sciences and to socioeconomic disciplines. In particular, bipartite networks have been recognized to provide a particularly insightful representation of many systems, ranging from mutualistic networks in ecology to trade networks in economy, whence the need of a pattern detection-oriented analysis in order to identify statistically-significant structural properties. Such an analysis rests upon the definition of suitable null models, i.e. upon the choice of the portion of network structure to be preserve","authors_text":"Andrea Gabrielli, Fabio Saracco, Riccardo Di Clemente, Tiziano Squartini","cross_cats":["physics.data-an","q-fin.GN"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2015-03-17T15:45:14Z","title":"Randomizing bipartite networks: the case of the World Trade Web"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.05098","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:c16e98ed275f3c3127c6a8c0f091c44d5636f8e2142bb92839d81249d6b99a17","target":"record","created_at":"2026-05-18T01:25:18Z","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":"c38b2abb5cf8fc32cae9381e03fc71f793a1d826615e1e841b99de39ac0c703c","cross_cats_sorted":["physics.data-an","q-fin.GN"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2015-03-17T15:45:14Z","title_canon_sha256":"50400183d20fbc0e55f72a22f598eeef2d8e5a5a4e4a919c0ab3108ba43f5c34"},"schema_version":"1.0","source":{"id":"1503.05098","kind":"arxiv","version":2}},"canonical_sha256":"a9c78d8d2aec43df75a50b91af11f47cbd6fb4043c44219af93c3e2f054d7740","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9c78d8d2aec43df75a50b91af11f47cbd6fb4043c44219af93c3e2f054d7740","first_computed_at":"2026-05-18T01:25:18.263205Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:25:18.263205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Tx8ym3QmSh46Co7YBFVDaUsQWlCA8FAUPXePorcCiAUuzJwCajHP/I0NnL+vnxy19rVYfwMn8v2qbm2ogsnUAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:25:18.263934Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.05098","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c16e98ed275f3c3127c6a8c0f091c44d5636f8e2142bb92839d81249d6b99a17","sha256:517ede70e1a87288b8d77697bcf515c08c6c8acae7a38347dde21f865617676e"],"state_sha256":"81a77e041f1abc8f815835f56e8a8beb5cfb9310ae510120e07c3272eed9110f"}