{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:WBHQQB72VNK5ASIYEAOUCDAAO5","short_pith_number":"pith:WBHQQB72","canonical_record":{"source":{"id":"2605.21540","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2026-05-20T07:58:49Z","cross_cats_sorted":["cs.AI","cs.CL","cs.CY"],"title_canon_sha256":"c4d12c9628a66391e2606d776b6599db64995f3a79c50accaf67ab2bb158191c","abstract_canon_sha256":"658350bee97c678cc0c8e08c59116a22acc6845d9f6827e64a8ef81258cb35cb"},"schema_version":"1.0"},"canonical_sha256":"b04f0807faab55d04918201d410c00775997d5d8b3aa13e444a588bac9cc18b6","source":{"kind":"arxiv","id":"2605.21540","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.21540","created_at":"2026-05-22T00:02:27Z"},{"alias_kind":"arxiv_version","alias_value":"2605.21540v1","created_at":"2026-05-22T00:02:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.21540","created_at":"2026-05-22T00:02:27Z"},{"alias_kind":"pith_short_12","alias_value":"WBHQQB72VNK5","created_at":"2026-05-22T00:02:27Z"},{"alias_kind":"pith_short_16","alias_value":"WBHQQB72VNK5ASIY","created_at":"2026-05-22T00:02:27Z"},{"alias_kind":"pith_short_8","alias_value":"WBHQQB72","created_at":"2026-05-22T00:02:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:WBHQQB72VNK5ASIYEAOUCDAAO5","target":"record","payload":{"canonical_record":{"source":{"id":"2605.21540","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2026-05-20T07:58:49Z","cross_cats_sorted":["cs.AI","cs.CL","cs.CY"],"title_canon_sha256":"c4d12c9628a66391e2606d776b6599db64995f3a79c50accaf67ab2bb158191c","abstract_canon_sha256":"658350bee97c678cc0c8e08c59116a22acc6845d9f6827e64a8ef81258cb35cb"},"schema_version":"1.0"},"canonical_sha256":"b04f0807faab55d04918201d410c00775997d5d8b3aa13e444a588bac9cc18b6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-22T00:02:27.971807Z","signature_b64":"AnqvB4nJSniVuy5Ug/OMn9OaAypRcnhAGIOyQS2V6W/KGXdHzWnuE92X5hvsN/4HJA7cyBihGrfWWCQthxe+CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b04f0807faab55d04918201d410c00775997d5d8b3aa13e444a588bac9cc18b6","last_reissued_at":"2026-05-22T00:02:27.971361Z","signature_status":"signed_v1","first_computed_at":"2026-05-22T00:02:27.971361Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.21540","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":"2026-05-22T00:02:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ou7Yb3x+hAgNpwiCQz/QOARLHYvXo0QAqQeVoDOcXAAYNOj6qFWvjZ5EdDId4dH2e7kaRmDg3IB6EHq0JcthAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T00:01:25.474035Z"},"content_sha256":"92e2c0c2ae508e30994a82336da089ccec8f2097c9b88e6c2b69034f119a237a","schema_version":"1.0","event_id":"sha256:92e2c0c2ae508e30994a82336da089ccec8f2097c9b88e6c2b69034f119a237a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:WBHQQB72VNK5ASIYEAOUCDAAO5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detecting Synthetic Political Narratives in Cross-Platform Social Media Discourse","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI","cs.CL","cs.CY"],"primary_cat":"cs.SI","authors_text":"Despoina Antonakaki, Sotiris Ioannidis","submitted_at":"2026-05-20T07:58:49Z","abstract_excerpt":"The proliferation of large language models has introduced a new paradigm of synthetic political communication in which narratives may be generated, semantically coordinated, and strategically disseminated across platforms at scale. We present a cross-platform framework for detecting synthetic political narratives using four coordination signals -- lexical diversity D(C), temporal burstiness B(C), rhetorical repetition R(C), and semantic homogenization H(C) -- combined into a Synthetic Narrative Coordination Score SNC(C).\n  We apply the framework to a corpus of 353,223 records spanning six geop"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.21540","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.21540/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-05-22T00:02:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CFcqMKXEdc52x9jq1QkT3Wmlx4pK7A0I8aVQ9eR8EeAw0FtJOYNugVxKCb4b2jRvPToCrFRKTSCG6OjcnylVDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T00:01:25.474776Z"},"content_sha256":"09982cff1bf67e2b62cfbc7b4a08a741773cca7e6830f81e2980a5a22383bbef","schema_version":"1.0","event_id":"sha256:09982cff1bf67e2b62cfbc7b4a08a741773cca7e6830f81e2980a5a22383bbef"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WBHQQB72VNK5ASIYEAOUCDAAO5/bundle.json","state_url":"https://pith.science/pith/WBHQQB72VNK5ASIYEAOUCDAAO5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WBHQQB72VNK5ASIYEAOUCDAAO5/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":"2026-05-23T00:01:25Z","links":{"resolver":"https://pith.science/pith/WBHQQB72VNK5ASIYEAOUCDAAO5","bundle":"https://pith.science/pith/WBHQQB72VNK5ASIYEAOUCDAAO5/bundle.json","state":"https://pith.science/pith/WBHQQB72VNK5ASIYEAOUCDAAO5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WBHQQB72VNK5ASIYEAOUCDAAO5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:WBHQQB72VNK5ASIYEAOUCDAAO5","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":"658350bee97c678cc0c8e08c59116a22acc6845d9f6827e64a8ef81258cb35cb","cross_cats_sorted":["cs.AI","cs.CL","cs.CY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2026-05-20T07:58:49Z","title_canon_sha256":"c4d12c9628a66391e2606d776b6599db64995f3a79c50accaf67ab2bb158191c"},"schema_version":"1.0","source":{"id":"2605.21540","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.21540","created_at":"2026-05-22T00:02:27Z"},{"alias_kind":"arxiv_version","alias_value":"2605.21540v1","created_at":"2026-05-22T00:02:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.21540","created_at":"2026-05-22T00:02:27Z"},{"alias_kind":"pith_short_12","alias_value":"WBHQQB72VNK5","created_at":"2026-05-22T00:02:27Z"},{"alias_kind":"pith_short_16","alias_value":"WBHQQB72VNK5ASIY","created_at":"2026-05-22T00:02:27Z"},{"alias_kind":"pith_short_8","alias_value":"WBHQQB72","created_at":"2026-05-22T00:02:27Z"}],"graph_snapshots":[{"event_id":"sha256:09982cff1bf67e2b62cfbc7b4a08a741773cca7e6830f81e2980a5a22383bbef","target":"graph","created_at":"2026-05-22T00:02:27Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2605.21540/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The proliferation of large language models has introduced a new paradigm of synthetic political communication in which narratives may be generated, semantically coordinated, and strategically disseminated across platforms at scale. We present a cross-platform framework for detecting synthetic political narratives using four coordination signals -- lexical diversity D(C), temporal burstiness B(C), rhetorical repetition R(C), and semantic homogenization H(C) -- combined into a Synthetic Narrative Coordination Score SNC(C).\n  We apply the framework to a corpus of 353,223 records spanning six geop","authors_text":"Despoina Antonakaki, Sotiris Ioannidis","cross_cats":["cs.AI","cs.CL","cs.CY"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2026-05-20T07:58:49Z","title":"Detecting Synthetic Political Narratives in Cross-Platform Social Media Discourse"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.21540","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":"sha256:92e2c0c2ae508e30994a82336da089ccec8f2097c9b88e6c2b69034f119a237a","target":"record","created_at":"2026-05-22T00:02:27Z","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":"658350bee97c678cc0c8e08c59116a22acc6845d9f6827e64a8ef81258cb35cb","cross_cats_sorted":["cs.AI","cs.CL","cs.CY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2026-05-20T07:58:49Z","title_canon_sha256":"c4d12c9628a66391e2606d776b6599db64995f3a79c50accaf67ab2bb158191c"},"schema_version":"1.0","source":{"id":"2605.21540","kind":"arxiv","version":1}},"canonical_sha256":"b04f0807faab55d04918201d410c00775997d5d8b3aa13e444a588bac9cc18b6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b04f0807faab55d04918201d410c00775997d5d8b3aa13e444a588bac9cc18b6","first_computed_at":"2026-05-22T00:02:27.971361Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-22T00:02:27.971361Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AnqvB4nJSniVuy5Ug/OMn9OaAypRcnhAGIOyQS2V6W/KGXdHzWnuE92X5hvsN/4HJA7cyBihGrfWWCQthxe+CQ==","signature_status":"signed_v1","signed_at":"2026-05-22T00:02:27.971807Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.21540","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:92e2c0c2ae508e30994a82336da089ccec8f2097c9b88e6c2b69034f119a237a","sha256:09982cff1bf67e2b62cfbc7b4a08a741773cca7e6830f81e2980a5a22383bbef"],"state_sha256":"4a0643e17f2f576207ca935681e28d5c25c62081f16adaa7f02da38d0b307ad7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I9xRKZXfeHllS98QjGPODOfzlR+xuYwNsDQoeL4mB4+3tXYPxQNHTo18GIscjqAWcTyUsLFhGgMhNDZPvlCUBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T00:01:25.478245Z","bundle_sha256":"54d8da866090000e8c7ffe14d32b493c7efe4a06b2b0131d1c4a12a81bf1a6ab"}}