{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:2PSMFFEIWK77QBINXXAJHOZNPY","short_pith_number":"pith:2PSMFFEI","canonical_record":{"source":{"id":"1301.6630","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2013-01-28T18:17:22Z","cross_cats_sorted":["cs.LG","physics.soc-ph"],"title_canon_sha256":"21f710b6c792f35100df5d32555daa4805aee015521d89b96b091f8e46c6c9da","abstract_canon_sha256":"c36942c9f42ba4420798212353585265fa40d751895c0d5dd3893f5ae30d3b91"},"schema_version":"1.0"},"canonical_sha256":"d3e4c29488b2bff8050dbdc093bb2d7e2bf5e9492f8cef2f24115bc8e85d53af","source":{"kind":"arxiv","id":"1301.6630","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.6630","created_at":"2026-05-18T03:34:13Z"},{"alias_kind":"arxiv_version","alias_value":"1301.6630v2","created_at":"2026-05-18T03:34:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.6630","created_at":"2026-05-18T03:34:13Z"},{"alias_kind":"pith_short_12","alias_value":"2PSMFFEIWK77","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"2PSMFFEIWK77QBIN","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"2PSMFFEI","created_at":"2026-05-18T12:27:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:2PSMFFEIWK77QBINXXAJHOZNPY","target":"record","payload":{"canonical_record":{"source":{"id":"1301.6630","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2013-01-28T18:17:22Z","cross_cats_sorted":["cs.LG","physics.soc-ph"],"title_canon_sha256":"21f710b6c792f35100df5d32555daa4805aee015521d89b96b091f8e46c6c9da","abstract_canon_sha256":"c36942c9f42ba4420798212353585265fa40d751895c0d5dd3893f5ae30d3b91"},"schema_version":"1.0"},"canonical_sha256":"d3e4c29488b2bff8050dbdc093bb2d7e2bf5e9492f8cef2f24115bc8e85d53af","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:34:13.583929Z","signature_b64":"P/kx4lhcxoCIB9NvsssfkY18f41QwN7w7y/t44gSoub2QAn2dfGS+fp98+UBgyt+d04j9Ze6gKAwMp2th0kXBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d3e4c29488b2bff8050dbdc093bb2d7e2bf5e9492f8cef2f24115bc8e85d53af","last_reissued_at":"2026-05-18T03:34:13.583391Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:34:13.583391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.6630","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":"2026-05-18T03:34:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e3CssCQ0HLgQZ71g3sZZ/su8eCPDj8zs3f/V5Y+RIXorH8FH9+UuBDHiGXPoXm8PDAMzLYZipaY+E9VH3iy9Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T05:15:49.239172Z"},"content_sha256":"b5df9600d25e42545a8e77c38cb6b890ba7024840bb87ae653686b99214bb193","schema_version":"1.0","event_id":"sha256:b5df9600d25e42545a8e77c38cb6b890ba7024840bb87ae653686b99214bb193"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:2PSMFFEIWK77QBINXXAJHOZNPY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Political Disaffection: a case study on the Italian Twitter community","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG","physics.soc-ph"],"primary_cat":"cs.SI","authors_text":"Adam Arvidsson, Alessandro Rozza, Corrado Monti, Giovanni Zappella, Matteo Zignani, Monica Poletti","submitted_at":"2013-01-28T18:17:22Z","abstract_excerpt":"In our work we analyse the political disaffection or \"the subjective feeling of powerlessness, cynicism, and lack of confidence in the political process, politicians, and democratic institutions, but with no questioning of the political regime\" by exploiting Twitter data through machine learning techniques. In order to validate the quality of the time-series generated by the Twitter data, we highlight the relations of these data with political disaffection as measured by means of public opinion surveys. Moreover, we show that important political news of Italian newspapers are often correlated "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.6630","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":"2026-05-18T03:34:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZjfbiXcnd1EZRo5N/QM5ZDF7JxiZgfdLQhMDv/E9GMT5WotHxDNUjMEQPXzqFD+SMEJTY2F3qmoDq3YyIO5yBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T05:15:49.239847Z"},"content_sha256":"3558ac8a8113091d3a5848ce30240dff29426a9286d84bc15c908e167c0ae56a","schema_version":"1.0","event_id":"sha256:3558ac8a8113091d3a5848ce30240dff29426a9286d84bc15c908e167c0ae56a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2PSMFFEIWK77QBINXXAJHOZNPY/bundle.json","state_url":"https://pith.science/pith/2PSMFFEIWK77QBINXXAJHOZNPY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2PSMFFEIWK77QBINXXAJHOZNPY/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":"2026-05-22T05:15:49Z","links":{"resolver":"https://pith.science/pith/2PSMFFEIWK77QBINXXAJHOZNPY","bundle":"https://pith.science/pith/2PSMFFEIWK77QBINXXAJHOZNPY/bundle.json","state":"https://pith.science/pith/2PSMFFEIWK77QBINXXAJHOZNPY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2PSMFFEIWK77QBINXXAJHOZNPY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:2PSMFFEIWK77QBINXXAJHOZNPY","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":"c36942c9f42ba4420798212353585265fa40d751895c0d5dd3893f5ae30d3b91","cross_cats_sorted":["cs.LG","physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2013-01-28T18:17:22Z","title_canon_sha256":"21f710b6c792f35100df5d32555daa4805aee015521d89b96b091f8e46c6c9da"},"schema_version":"1.0","source":{"id":"1301.6630","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.6630","created_at":"2026-05-18T03:34:13Z"},{"alias_kind":"arxiv_version","alias_value":"1301.6630v2","created_at":"2026-05-18T03:34:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.6630","created_at":"2026-05-18T03:34:13Z"},{"alias_kind":"pith_short_12","alias_value":"2PSMFFEIWK77","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"2PSMFFEIWK77QBIN","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"2PSMFFEI","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:3558ac8a8113091d3a5848ce30240dff29426a9286d84bc15c908e167c0ae56a","target":"graph","created_at":"2026-05-18T03:34:13Z","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":"In our work we analyse the political disaffection or \"the subjective feeling of powerlessness, cynicism, and lack of confidence in the political process, politicians, and democratic institutions, but with no questioning of the political regime\" by exploiting Twitter data through machine learning techniques. In order to validate the quality of the time-series generated by the Twitter data, we highlight the relations of these data with political disaffection as measured by means of public opinion surveys. Moreover, we show that important political news of Italian newspapers are often correlated ","authors_text":"Adam Arvidsson, Alessandro Rozza, Corrado Monti, Giovanni Zappella, Matteo Zignani, Monica Poletti","cross_cats":["cs.LG","physics.soc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2013-01-28T18:17:22Z","title":"Political Disaffection: a case study on the Italian Twitter community"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.6630","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:b5df9600d25e42545a8e77c38cb6b890ba7024840bb87ae653686b99214bb193","target":"record","created_at":"2026-05-18T03:34:13Z","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":"c36942c9f42ba4420798212353585265fa40d751895c0d5dd3893f5ae30d3b91","cross_cats_sorted":["cs.LG","physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2013-01-28T18:17:22Z","title_canon_sha256":"21f710b6c792f35100df5d32555daa4805aee015521d89b96b091f8e46c6c9da"},"schema_version":"1.0","source":{"id":"1301.6630","kind":"arxiv","version":2}},"canonical_sha256":"d3e4c29488b2bff8050dbdc093bb2d7e2bf5e9492f8cef2f24115bc8e85d53af","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d3e4c29488b2bff8050dbdc093bb2d7e2bf5e9492f8cef2f24115bc8e85d53af","first_computed_at":"2026-05-18T03:34:13.583391Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:34:13.583391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"P/kx4lhcxoCIB9NvsssfkY18f41QwN7w7y/t44gSoub2QAn2dfGS+fp98+UBgyt+d04j9Ze6gKAwMp2th0kXBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:34:13.583929Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.6630","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b5df9600d25e42545a8e77c38cb6b890ba7024840bb87ae653686b99214bb193","sha256:3558ac8a8113091d3a5848ce30240dff29426a9286d84bc15c908e167c0ae56a"],"state_sha256":"475e5fbe6c354cd46773aed738517d4310b0e5806ee3dbd221883bd67c88c6fa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h5qVX3AJrg0hO/S4elV0TyNkAtp+++TsyMSVnopeFt53En9QxS9UBTY8aNYEdPQQowxREPGMIdIEcj5d2J0bDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T05:15:49.243260Z","bundle_sha256":"d0b9b3209490044ebec570104b926fdbfcc2690680cac5323785de31a57360a7"}}