{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:NBOVXI2DWFDC5CGI43BA4TWXFV","short_pith_number":"pith:NBOVXI2D","canonical_record":{"source":{"id":"2302.06448","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2023-02-13T15:28:02Z","cross_cats_sorted":["cs.IR"],"title_canon_sha256":"6de235330e64f41cc8c9c1f613664157f5691ba57f69739558b2e4e6c29d4ec4","abstract_canon_sha256":"0f6d0a3a071ecdd6c7e4c0b512a5c213bd0baf2fa0f679b571694405b98a1ec8"},"schema_version":"1.0"},"canonical_sha256":"685d5ba343b1462e88c8e6c20e4ed72d542beb212b048aecf6f6da0e119065f0","source":{"kind":"arxiv","id":"2302.06448","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.06448","created_at":"2026-07-05T05:41:05Z"},{"alias_kind":"arxiv_version","alias_value":"2302.06448v1","created_at":"2026-07-05T05:41:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.06448","created_at":"2026-07-05T05:41:05Z"},{"alias_kind":"pith_short_12","alias_value":"NBOVXI2DWFDC","created_at":"2026-07-05T05:41:05Z"},{"alias_kind":"pith_short_16","alias_value":"NBOVXI2DWFDC5CGI","created_at":"2026-07-05T05:41:05Z"},{"alias_kind":"pith_short_8","alias_value":"NBOVXI2D","created_at":"2026-07-05T05:41:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:NBOVXI2DWFDC5CGI43BA4TWXFV","target":"record","payload":{"canonical_record":{"source":{"id":"2302.06448","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2023-02-13T15:28:02Z","cross_cats_sorted":["cs.IR"],"title_canon_sha256":"6de235330e64f41cc8c9c1f613664157f5691ba57f69739558b2e4e6c29d4ec4","abstract_canon_sha256":"0f6d0a3a071ecdd6c7e4c0b512a5c213bd0baf2fa0f679b571694405b98a1ec8"},"schema_version":"1.0"},"canonical_sha256":"685d5ba343b1462e88c8e6c20e4ed72d542beb212b048aecf6f6da0e119065f0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:41:05.329782Z","signature_b64":"5Q6dhuY2vZ8MFUUDRFmPOvDI1qFcnHUFaK4zg3a3UE/vutqJNz6BqcVRtPgJdDdFnuwdjL3vQzGj+oy/SQxwDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"685d5ba343b1462e88c8e6c20e4ed72d542beb212b048aecf6f6da0e119065f0","last_reissued_at":"2026-07-05T05:41:05.329432Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:41:05.329432Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2302.06448","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":"2026-07-05T05:41:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+uopxT9WhE/g9Pf8Bn9YhOws1t93M9yrE8uStEldEd6wawecwb10jsaDnTv+XoCbpyk+V+meKfBWI4yad4YAAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-19T08:13:39.274103Z"},"content_sha256":"e0e57878abb0891d1f1b1caf3f22fb8de09295009625b8400a9bdd061da1d8a4","schema_version":"1.0","event_id":"sha256:e0e57878abb0891d1f1b1caf3f22fb8de09295009625b8400a9bdd061da1d8a4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:NBOVXI2DWFDC5CGI43BA4TWXFV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Joint Span Segmentation and Rhetorical Role Labeling with Data Augmentation for Legal Documents","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.IR"],"primary_cat":"cs.CL","authors_text":"Matthias Grabmair, Philipp Bock, T.Y.S.S. Santosh","submitted_at":"2023-02-13T15:28:02Z","abstract_excerpt":"Segmentation and Rhetorical Role Labeling of legal judgements play a crucial role in retrieval and adjacent tasks, including case summarization, semantic search, argument mining etc. Previous approaches have formulated this task either as independent classification or sequence labeling of sentences. In this work, we reformulate the task at span level as identifying spans of multiple consecutive sentences that share the same rhetorical role label to be assigned via classification. We employ semi-Markov Conditional Random Fields (CRF) to jointly learn span segmentation and span label assignment."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.06448","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/2302.06448/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":"2026-07-05T05:41:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fRqsfubjkGso1FW2hc4rYH0llSuYZbvYkK5sp5VARDJeIngeIIPg0apm/imn0V+meeC3aTZVL8UfQXspdVxxBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-19T08:13:39.274488Z"},"content_sha256":"f5a478937198fbcb7541041f3203cd4be0819e9e0f1f05983d341e7e999e092f","schema_version":"1.0","event_id":"sha256:f5a478937198fbcb7541041f3203cd4be0819e9e0f1f05983d341e7e999e092f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NBOVXI2DWFDC5CGI43BA4TWXFV/bundle.json","state_url":"https://pith.science/pith/NBOVXI2DWFDC5CGI43BA4TWXFV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NBOVXI2DWFDC5CGI43BA4TWXFV/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":"2026-07-19T08:13:39Z","links":{"resolver":"https://pith.science/pith/NBOVXI2DWFDC5CGI43BA4TWXFV","bundle":"https://pith.science/pith/NBOVXI2DWFDC5CGI43BA4TWXFV/bundle.json","state":"https://pith.science/pith/NBOVXI2DWFDC5CGI43BA4TWXFV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NBOVXI2DWFDC5CGI43BA4TWXFV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:NBOVXI2DWFDC5CGI43BA4TWXFV","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":"0f6d0a3a071ecdd6c7e4c0b512a5c213bd0baf2fa0f679b571694405b98a1ec8","cross_cats_sorted":["cs.IR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2023-02-13T15:28:02Z","title_canon_sha256":"6de235330e64f41cc8c9c1f613664157f5691ba57f69739558b2e4e6c29d4ec4"},"schema_version":"1.0","source":{"id":"2302.06448","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.06448","created_at":"2026-07-05T05:41:05Z"},{"alias_kind":"arxiv_version","alias_value":"2302.06448v1","created_at":"2026-07-05T05:41:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.06448","created_at":"2026-07-05T05:41:05Z"},{"alias_kind":"pith_short_12","alias_value":"NBOVXI2DWFDC","created_at":"2026-07-05T05:41:05Z"},{"alias_kind":"pith_short_16","alias_value":"NBOVXI2DWFDC5CGI","created_at":"2026-07-05T05:41:05Z"},{"alias_kind":"pith_short_8","alias_value":"NBOVXI2D","created_at":"2026-07-05T05:41:05Z"}],"graph_snapshots":[{"event_id":"sha256:f5a478937198fbcb7541041f3203cd4be0819e9e0f1f05983d341e7e999e092f","target":"graph","created_at":"2026-07-05T05:41:05Z","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/2302.06448/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Segmentation and Rhetorical Role Labeling of legal judgements play a crucial role in retrieval and adjacent tasks, including case summarization, semantic search, argument mining etc. Previous approaches have formulated this task either as independent classification or sequence labeling of sentences. In this work, we reformulate the task at span level as identifying spans of multiple consecutive sentences that share the same rhetorical role label to be assigned via classification. We employ semi-Markov Conditional Random Fields (CRF) to jointly learn span segmentation and span label assignment.","authors_text":"Matthias Grabmair, Philipp Bock, T.Y.S.S. Santosh","cross_cats":["cs.IR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2023-02-13T15:28:02Z","title":"Joint Span Segmentation and Rhetorical Role Labeling with Data Augmentation for Legal Documents"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.06448","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:e0e57878abb0891d1f1b1caf3f22fb8de09295009625b8400a9bdd061da1d8a4","target":"record","created_at":"2026-07-05T05:41:05Z","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":"0f6d0a3a071ecdd6c7e4c0b512a5c213bd0baf2fa0f679b571694405b98a1ec8","cross_cats_sorted":["cs.IR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2023-02-13T15:28:02Z","title_canon_sha256":"6de235330e64f41cc8c9c1f613664157f5691ba57f69739558b2e4e6c29d4ec4"},"schema_version":"1.0","source":{"id":"2302.06448","kind":"arxiv","version":1}},"canonical_sha256":"685d5ba343b1462e88c8e6c20e4ed72d542beb212b048aecf6f6da0e119065f0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"685d5ba343b1462e88c8e6c20e4ed72d542beb212b048aecf6f6da0e119065f0","first_computed_at":"2026-07-05T05:41:05.329432Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:41:05.329432Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5Q6dhuY2vZ8MFUUDRFmPOvDI1qFcnHUFaK4zg3a3UE/vutqJNz6BqcVRtPgJdDdFnuwdjL3vQzGj+oy/SQxwDw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:41:05.329782Z","signed_message":"canonical_sha256_bytes"},"source_id":"2302.06448","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e0e57878abb0891d1f1b1caf3f22fb8de09295009625b8400a9bdd061da1d8a4","sha256:f5a478937198fbcb7541041f3203cd4be0819e9e0f1f05983d341e7e999e092f"],"state_sha256":"4e504500ef7ffd20b9e6385ae20dae81d0e1d8b3ccae38aa24bc122948d3d08c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bi2KesF5AQ2mnLFkhQoESNruPA0MNnFP/osd307Btq0hn7pOkRYTPtnxlHhBtsegCIn4zJ6EnX2FJnnic3RUBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-19T08:13:39.276974Z","bundle_sha256":"34144a9861de200b7303b09a08d6d7f2b695b33788cd66fae6b3ef4f6660d57a"}}