{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:ZPSHENS2CKRLG2I225G7CO7XZY","short_pith_number":"pith:ZPSHENS2","canonical_record":{"source":{"id":"1012.1338","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2010-12-06T21:16:37Z","cross_cats_sorted":[],"title_canon_sha256":"70c3028cd3e2240ea1909de54590cad86c210a440364f2a4b144ffede1035dbc","abstract_canon_sha256":"0006734d9abd5d1728f745d73b9a920fd753146e3da16f607b9897d33f3420ff"},"schema_version":"1.0"},"canonical_sha256":"cbe472365a12a2b3691ad74df13bf7ce2452bee36aef39b9607ae96d0280b2f2","source":{"kind":"arxiv","id":"1012.1338","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.1338","created_at":"2026-05-18T04:34:01Z"},{"alias_kind":"arxiv_version","alias_value":"1012.1338v1","created_at":"2026-05-18T04:34:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.1338","created_at":"2026-05-18T04:34:01Z"},{"alias_kind":"pith_short_12","alias_value":"ZPSHENS2CKRL","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"ZPSHENS2CKRLG2I2","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"ZPSHENS2","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:ZPSHENS2CKRLG2I225G7CO7XZY","target":"record","payload":{"canonical_record":{"source":{"id":"1012.1338","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2010-12-06T21:16:37Z","cross_cats_sorted":[],"title_canon_sha256":"70c3028cd3e2240ea1909de54590cad86c210a440364f2a4b144ffede1035dbc","abstract_canon_sha256":"0006734d9abd5d1728f745d73b9a920fd753146e3da16f607b9897d33f3420ff"},"schema_version":"1.0"},"canonical_sha256":"cbe472365a12a2b3691ad74df13bf7ce2452bee36aef39b9607ae96d0280b2f2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:34:01.166498Z","signature_b64":"bkTtAjZnEPfw2zNcV5mz7NDcoXz463pP8g9fO5zGsjte8J36RBdIUj89RMi6j1bykOD3+GXvfIkTD7UueknHAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cbe472365a12a2b3691ad74df13bf7ce2452bee36aef39b9607ae96d0280b2f2","last_reissued_at":"2026-05-18T04:34:01.166018Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:34:01.166018Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1012.1338","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":"2026-05-18T04:34:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MWJUMi4n8m8q7sqN3Np1xFEwXNY1mCuljQp9prnjO/6hkZeyq+05JfTh3MfOsNhGdkDtsej4woiUyr+xnzQKAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T23:52:42.014334Z"},"content_sha256":"e7d4f0be7cabf88f6639ae082e5006a390d4b368b54b9cf1f2a0244c48131113","schema_version":"1.0","event_id":"sha256:e7d4f0be7cabf88f6639ae082e5006a390d4b368b54b9cf1f2a0244c48131113"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:ZPSHENS2CKRLG2I225G7CO7XZY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On Tuning the Bad-Character Rule: the Worst-Character Rule","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DS","authors_text":"Domenico Cantone, Simone Faro","submitted_at":"2010-12-06T21:16:37Z","abstract_excerpt":"In this note we present the worst-character rule, an efficient variation of the bad-character heuristic for the exact string matching problem, firstly introduced in the well-known Boyer-Moore algorithm. Our proposed rule selects a position relative to the current shift which yields the largest average advancement, according to the characters distribution in the text. Experimental results show that the worst-character rule achieves very good results especially in the case of long patterns or small alphabets in random texts and in the case of texts in natural languages."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.1338","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":"2026-05-18T04:34:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"104tkDiYLjggq7N/qahRcemXtEy2K1MswW+LVz4eQ30q46bOLqgdCIpf8GDOWNcBYDUqqGwVA8KTS3DsViScBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T23:52:42.014682Z"},"content_sha256":"1f83e0ae29e564823bfa464169c2f5f61cc8f706ec52513dcd95ffedaedbc1f9","schema_version":"1.0","event_id":"sha256:1f83e0ae29e564823bfa464169c2f5f61cc8f706ec52513dcd95ffedaedbc1f9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZPSHENS2CKRLG2I225G7CO7XZY/bundle.json","state_url":"https://pith.science/pith/ZPSHENS2CKRLG2I225G7CO7XZY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZPSHENS2CKRLG2I225G7CO7XZY/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":"2026-06-21T23:52:42Z","links":{"resolver":"https://pith.science/pith/ZPSHENS2CKRLG2I225G7CO7XZY","bundle":"https://pith.science/pith/ZPSHENS2CKRLG2I225G7CO7XZY/bundle.json","state":"https://pith.science/pith/ZPSHENS2CKRLG2I225G7CO7XZY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZPSHENS2CKRLG2I225G7CO7XZY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:ZPSHENS2CKRLG2I225G7CO7XZY","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":"0006734d9abd5d1728f745d73b9a920fd753146e3da16f607b9897d33f3420ff","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2010-12-06T21:16:37Z","title_canon_sha256":"70c3028cd3e2240ea1909de54590cad86c210a440364f2a4b144ffede1035dbc"},"schema_version":"1.0","source":{"id":"1012.1338","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.1338","created_at":"2026-05-18T04:34:01Z"},{"alias_kind":"arxiv_version","alias_value":"1012.1338v1","created_at":"2026-05-18T04:34:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.1338","created_at":"2026-05-18T04:34:01Z"},{"alias_kind":"pith_short_12","alias_value":"ZPSHENS2CKRL","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"ZPSHENS2CKRLG2I2","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"ZPSHENS2","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:1f83e0ae29e564823bfa464169c2f5f61cc8f706ec52513dcd95ffedaedbc1f9","target":"graph","created_at":"2026-05-18T04:34:01Z","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":"In this note we present the worst-character rule, an efficient variation of the bad-character heuristic for the exact string matching problem, firstly introduced in the well-known Boyer-Moore algorithm. Our proposed rule selects a position relative to the current shift which yields the largest average advancement, according to the characters distribution in the text. Experimental results show that the worst-character rule achieves very good results especially in the case of long patterns or small alphabets in random texts and in the case of texts in natural languages.","authors_text":"Domenico Cantone, Simone Faro","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2010-12-06T21:16:37Z","title":"On Tuning the Bad-Character Rule: the Worst-Character Rule"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.1338","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:e7d4f0be7cabf88f6639ae082e5006a390d4b368b54b9cf1f2a0244c48131113","target":"record","created_at":"2026-05-18T04:34:01Z","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":"0006734d9abd5d1728f745d73b9a920fd753146e3da16f607b9897d33f3420ff","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2010-12-06T21:16:37Z","title_canon_sha256":"70c3028cd3e2240ea1909de54590cad86c210a440364f2a4b144ffede1035dbc"},"schema_version":"1.0","source":{"id":"1012.1338","kind":"arxiv","version":1}},"canonical_sha256":"cbe472365a12a2b3691ad74df13bf7ce2452bee36aef39b9607ae96d0280b2f2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cbe472365a12a2b3691ad74df13bf7ce2452bee36aef39b9607ae96d0280b2f2","first_computed_at":"2026-05-18T04:34:01.166018Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:34:01.166018Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bkTtAjZnEPfw2zNcV5mz7NDcoXz463pP8g9fO5zGsjte8J36RBdIUj89RMi6j1bykOD3+GXvfIkTD7UueknHAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:34:01.166498Z","signed_message":"canonical_sha256_bytes"},"source_id":"1012.1338","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e7d4f0be7cabf88f6639ae082e5006a390d4b368b54b9cf1f2a0244c48131113","sha256:1f83e0ae29e564823bfa464169c2f5f61cc8f706ec52513dcd95ffedaedbc1f9"],"state_sha256":"c5ac53d8746404be125a6df24efcd2fb99403cbef51c0bb7eab6c6d1cdd8e99e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SBq1GEu0et3BZ+KGeRAxPtmIQnsq+IwADOoeryA+FwIw9obVXDda1df0gKTJEw+5uqyrlws8Bsq4iRsOSFizCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-21T23:52:42.016587Z","bundle_sha256":"5f7adda41f9bcad1db46c40388a73effcb20433e5dd6283ef7ca068e3e0bf2ea"}}