{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:UGMMPL2GKUA6QCKJR2ZVVX2LHK","short_pith_number":"pith:UGMMPL2G","canonical_record":{"source":{"id":"1901.06378","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2019-01-18T18:44:26Z","cross_cats_sorted":["cs.LO"],"title_canon_sha256":"15607a41ecda94196829b636b13b50a216ddfe83b21ffea83ffb7dcfc4aa5b87","abstract_canon_sha256":"fc6230a8a7ef118c5275b3e6c630a16994d109b90143e90d4ab0c50445a1d88f"},"schema_version":"1.0"},"canonical_sha256":"a198c7af465501e809498eb35adf4b3aa466c8c8e5fc416c43b448d5a6075b31","source":{"kind":"arxiv","id":"1901.06378","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.06378","created_at":"2026-05-17T23:56:01Z"},{"alias_kind":"arxiv_version","alias_value":"1901.06378v1","created_at":"2026-05-17T23:56:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.06378","created_at":"2026-05-17T23:56:01Z"},{"alias_kind":"pith_short_12","alias_value":"UGMMPL2GKUA6","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"UGMMPL2GKUA6QCKJ","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"UGMMPL2G","created_at":"2026-05-18T12:33:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:UGMMPL2GKUA6QCKJR2ZVVX2LHK","target":"record","payload":{"canonical_record":{"source":{"id":"1901.06378","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2019-01-18T18:44:26Z","cross_cats_sorted":["cs.LO"],"title_canon_sha256":"15607a41ecda94196829b636b13b50a216ddfe83b21ffea83ffb7dcfc4aa5b87","abstract_canon_sha256":"fc6230a8a7ef118c5275b3e6c630a16994d109b90143e90d4ab0c50445a1d88f"},"schema_version":"1.0"},"canonical_sha256":"a198c7af465501e809498eb35adf4b3aa466c8c8e5fc416c43b448d5a6075b31","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:56:01.169285Z","signature_b64":"SR+240hzFpdX03tlZYBmgvt6PEQWitjDaQnSxx5HskmYrHyYHREr2W+2Z/vngpR+5i/tqQm1rqtLThF4HfBDDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a198c7af465501e809498eb35adf4b3aa466c8c8e5fc416c43b448d5a6075b31","last_reissued_at":"2026-05-17T23:56:01.168685Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:56:01.168685Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.06378","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":"2026-05-17T23:56:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HY1FY1ta3uX9oM7bS1heKdRafV6C9CueYVpDUOi8VpTnvkXQy4P7HHWvO8mB1pVdyQTn1Wbqf6xDoeGWHP4dAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T03:51:55.659208Z"},"content_sha256":"b4920a31a90f9a6e4178725179a0bedc423dba79185a84348f8776e8cfd2406c","schema_version":"1.0","event_id":"sha256:b4920a31a90f9a6e4178725179a0bedc423dba79185a84348f8776e8cfd2406c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:UGMMPL2GKUA6QCKJR2ZVVX2LHK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Block Argumentation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LO"],"primary_cat":"cs.AI","authors_text":"Francesco Santini, Ryuta Arisaka, Stefano Bistarelli","submitted_at":"2019-01-18T18:44:26Z","abstract_excerpt":"We contemplate a higher-level bipolar abstract argumentation for non-elementary arguments such as: X argues against Ys sincerity with the fact that Y has presented his argument to draw a conclusion C, by omitting other facts which would not have validated C. Argumentation involving such arguments requires us to potentially consider an argument as a coherent block of argumentation, i.e. an argument may itself be an argumentation. In this work, we formulate block argumentation as a specific instance of Dung-style bipolar abstract argumentation with the dual nature of arguments. We consider inter"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.06378","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":"2026-05-17T23:56:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MeLzfX52ThCSSTLL/LmRYnR85W17iJcxXg8HXl8MCn0HNXxEXnhMkLMPIBj1Z77JaYOpW0L/2JkGXxqq+LXJDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T03:51:55.659577Z"},"content_sha256":"20feae5295d70b799ea06acdee85fef25e9748186a7177abab23beb973d688fe","schema_version":"1.0","event_id":"sha256:20feae5295d70b799ea06acdee85fef25e9748186a7177abab23beb973d688fe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UGMMPL2GKUA6QCKJR2ZVVX2LHK/bundle.json","state_url":"https://pith.science/pith/UGMMPL2GKUA6QCKJR2ZVVX2LHK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UGMMPL2GKUA6QCKJR2ZVVX2LHK/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":"2026-05-24T03:51:55Z","links":{"resolver":"https://pith.science/pith/UGMMPL2GKUA6QCKJR2ZVVX2LHK","bundle":"https://pith.science/pith/UGMMPL2GKUA6QCKJR2ZVVX2LHK/bundle.json","state":"https://pith.science/pith/UGMMPL2GKUA6QCKJR2ZVVX2LHK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UGMMPL2GKUA6QCKJR2ZVVX2LHK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:UGMMPL2GKUA6QCKJR2ZVVX2LHK","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":"fc6230a8a7ef118c5275b3e6c630a16994d109b90143e90d4ab0c50445a1d88f","cross_cats_sorted":["cs.LO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2019-01-18T18:44:26Z","title_canon_sha256":"15607a41ecda94196829b636b13b50a216ddfe83b21ffea83ffb7dcfc4aa5b87"},"schema_version":"1.0","source":{"id":"1901.06378","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.06378","created_at":"2026-05-17T23:56:01Z"},{"alias_kind":"arxiv_version","alias_value":"1901.06378v1","created_at":"2026-05-17T23:56:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.06378","created_at":"2026-05-17T23:56:01Z"},{"alias_kind":"pith_short_12","alias_value":"UGMMPL2GKUA6","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"UGMMPL2GKUA6QCKJ","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"UGMMPL2G","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:20feae5295d70b799ea06acdee85fef25e9748186a7177abab23beb973d688fe","target":"graph","created_at":"2026-05-17T23:56:01Z","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 contemplate a higher-level bipolar abstract argumentation for non-elementary arguments such as: X argues against Ys sincerity with the fact that Y has presented his argument to draw a conclusion C, by omitting other facts which would not have validated C. Argumentation involving such arguments requires us to potentially consider an argument as a coherent block of argumentation, i.e. an argument may itself be an argumentation. In this work, we formulate block argumentation as a specific instance of Dung-style bipolar abstract argumentation with the dual nature of arguments. We consider inter","authors_text":"Francesco Santini, Ryuta Arisaka, Stefano Bistarelli","cross_cats":["cs.LO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2019-01-18T18:44:26Z","title":"Block Argumentation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.06378","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:b4920a31a90f9a6e4178725179a0bedc423dba79185a84348f8776e8cfd2406c","target":"record","created_at":"2026-05-17T23:56:01Z","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":"fc6230a8a7ef118c5275b3e6c630a16994d109b90143e90d4ab0c50445a1d88f","cross_cats_sorted":["cs.LO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2019-01-18T18:44:26Z","title_canon_sha256":"15607a41ecda94196829b636b13b50a216ddfe83b21ffea83ffb7dcfc4aa5b87"},"schema_version":"1.0","source":{"id":"1901.06378","kind":"arxiv","version":1}},"canonical_sha256":"a198c7af465501e809498eb35adf4b3aa466c8c8e5fc416c43b448d5a6075b31","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a198c7af465501e809498eb35adf4b3aa466c8c8e5fc416c43b448d5a6075b31","first_computed_at":"2026-05-17T23:56:01.168685Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:56:01.168685Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SR+240hzFpdX03tlZYBmgvt6PEQWitjDaQnSxx5HskmYrHyYHREr2W+2Z/vngpR+5i/tqQm1rqtLThF4HfBDDQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:56:01.169285Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.06378","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b4920a31a90f9a6e4178725179a0bedc423dba79185a84348f8776e8cfd2406c","sha256:20feae5295d70b799ea06acdee85fef25e9748186a7177abab23beb973d688fe"],"state_sha256":"64b6bfc98754909b9553e28b61d8199b73c9d7e5fce84a41398bcdf1eed3826f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l9ig15j4K6g2VFx92CuoFvcGmN3D07EG4XQl4JnmGN/bynVeoCFGvKBs9IdCNX23bYOalSqMpIaS7Xz5RWahAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T03:51:55.662518Z","bundle_sha256":"f97f3461548fed72515ad8d1d7451f277f3ed2efb26f3157de61c8627ef9778e"}}