{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:AOVJSZSPSVXQEQU2JGYWZDNWJ4","short_pith_number":"pith:AOVJSZSP","canonical_record":{"source":{"id":"1712.01434","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2017-12-05T01:12:25Z","cross_cats_sorted":[],"title_canon_sha256":"80f26388638b18a63129ecf7cf95cad2cc881cb902ad88680825f4b43df625b5","abstract_canon_sha256":"051d37d97153d2c2afc578e5e9bdd638e668fce728724bf59a749e2850ead470"},"schema_version":"1.0"},"canonical_sha256":"03aa99664f956f02429a49b16c8db64f31d6178602c27ce8ff0f237706b2c30e","source":{"kind":"arxiv","id":"1712.01434","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.01434","created_at":"2026-05-18T00:28:50Z"},{"alias_kind":"arxiv_version","alias_value":"1712.01434v1","created_at":"2026-05-18T00:28:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.01434","created_at":"2026-05-18T00:28:50Z"},{"alias_kind":"pith_short_12","alias_value":"AOVJSZSPSVXQ","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"AOVJSZSPSVXQEQU2","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"AOVJSZSP","created_at":"2026-05-18T12:31:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:AOVJSZSPSVXQEQU2JGYWZDNWJ4","target":"record","payload":{"canonical_record":{"source":{"id":"1712.01434","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2017-12-05T01:12:25Z","cross_cats_sorted":[],"title_canon_sha256":"80f26388638b18a63129ecf7cf95cad2cc881cb902ad88680825f4b43df625b5","abstract_canon_sha256":"051d37d97153d2c2afc578e5e9bdd638e668fce728724bf59a749e2850ead470"},"schema_version":"1.0"},"canonical_sha256":"03aa99664f956f02429a49b16c8db64f31d6178602c27ce8ff0f237706b2c30e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:28:50.800888Z","signature_b64":"fD4E2H+zv8LDo4GnRZ0NUoEi3WunCtWJZq0/IQN3KwfdI3uTZXYTK5xDjvw5tq/gR/BzmHKB2PZ71XGO/Hl5CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"03aa99664f956f02429a49b16c8db64f31d6178602c27ce8ff0f237706b2c30e","last_reissued_at":"2026-05-18T00:28:50.800217Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:28:50.800217Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1712.01434","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":"2026-05-18T00:28:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qcvNT7J+83HXQiZpUHPx09qZp2xQGO+N1Bxg0WLO0vmDVyXS4LRkvy9aVFwkzbSC69gBFbeGzyVNRxdJY+WiAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:26:46.600458Z"},"content_sha256":"5ea599bd106616dbca0ca3e0fa459739275bf0a0c1e1a239ef2021edc0beef3e","schema_version":"1.0","event_id":"sha256:5ea599bd106616dbca0ca3e0fa459739275bf0a0c1e1a239ef2021edc0beef3e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:AOVJSZSPSVXQEQU2JGYWZDNWJ4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Zone-based Keyword Spotting in Bangla and Devanagari Documents","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Ayan Kumar Bhunia, Partha Pratim Roy, Umapada Pal","submitted_at":"2017-12-05T01:12:25Z","abstract_excerpt":"In this paper we present a word spotting system in text lines for offline Indic scripts such as Bangla (Bengali) and Devanagari. Recently, it was shown that zone-wise recognition method improves the word recognition performance than conventional full word recognition system in Indic scripts. Inspired with this idea we consider the zone segmentation approach and use middle zone information to improve the traditional word spotting performance. To avoid the problem of zone segmentation using heuristic approach, we propose here an HMM based approach to segment the upper and lower zone components f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.01434","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":"2026-05-18T00:28:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aRh1FVGnJ0O5OUAmS5RRCUxngkFBJFRsawQDeYkJkqrmKX5m7gSGgxCI+WprjPy2j/d/vWJ5h4HkbQ8p/ykSCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:26:46.601177Z"},"content_sha256":"6f88c34651997869b84590eac9412e98a610f41d2065009d360f5671243dcdda","schema_version":"1.0","event_id":"sha256:6f88c34651997869b84590eac9412e98a610f41d2065009d360f5671243dcdda"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AOVJSZSPSVXQEQU2JGYWZDNWJ4/bundle.json","state_url":"https://pith.science/pith/AOVJSZSPSVXQEQU2JGYWZDNWJ4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AOVJSZSPSVXQEQU2JGYWZDNWJ4/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":"2026-05-25T19:26:46Z","links":{"resolver":"https://pith.science/pith/AOVJSZSPSVXQEQU2JGYWZDNWJ4","bundle":"https://pith.science/pith/AOVJSZSPSVXQEQU2JGYWZDNWJ4/bundle.json","state":"https://pith.science/pith/AOVJSZSPSVXQEQU2JGYWZDNWJ4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AOVJSZSPSVXQEQU2JGYWZDNWJ4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:AOVJSZSPSVXQEQU2JGYWZDNWJ4","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":"051d37d97153d2c2afc578e5e9bdd638e668fce728724bf59a749e2850ead470","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2017-12-05T01:12:25Z","title_canon_sha256":"80f26388638b18a63129ecf7cf95cad2cc881cb902ad88680825f4b43df625b5"},"schema_version":"1.0","source":{"id":"1712.01434","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.01434","created_at":"2026-05-18T00:28:50Z"},{"alias_kind":"arxiv_version","alias_value":"1712.01434v1","created_at":"2026-05-18T00:28:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.01434","created_at":"2026-05-18T00:28:50Z"},{"alias_kind":"pith_short_12","alias_value":"AOVJSZSPSVXQ","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"AOVJSZSPSVXQEQU2","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"AOVJSZSP","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:6f88c34651997869b84590eac9412e98a610f41d2065009d360f5671243dcdda","target":"graph","created_at":"2026-05-18T00:28:50Z","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 paper we present a word spotting system in text lines for offline Indic scripts such as Bangla (Bengali) and Devanagari. Recently, it was shown that zone-wise recognition method improves the word recognition performance than conventional full word recognition system in Indic scripts. Inspired with this idea we consider the zone segmentation approach and use middle zone information to improve the traditional word spotting performance. To avoid the problem of zone segmentation using heuristic approach, we propose here an HMM based approach to segment the upper and lower zone components f","authors_text":"Ayan Kumar Bhunia, Partha Pratim Roy, Umapada Pal","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2017-12-05T01:12:25Z","title":"Zone-based Keyword Spotting in Bangla and Devanagari Documents"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.01434","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":"sha256:5ea599bd106616dbca0ca3e0fa459739275bf0a0c1e1a239ef2021edc0beef3e","target":"record","created_at":"2026-05-18T00:28:50Z","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":"051d37d97153d2c2afc578e5e9bdd638e668fce728724bf59a749e2850ead470","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2017-12-05T01:12:25Z","title_canon_sha256":"80f26388638b18a63129ecf7cf95cad2cc881cb902ad88680825f4b43df625b5"},"schema_version":"1.0","source":{"id":"1712.01434","kind":"arxiv","version":1}},"canonical_sha256":"03aa99664f956f02429a49b16c8db64f31d6178602c27ce8ff0f237706b2c30e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"03aa99664f956f02429a49b16c8db64f31d6178602c27ce8ff0f237706b2c30e","first_computed_at":"2026-05-18T00:28:50.800217Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:28:50.800217Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fD4E2H+zv8LDo4GnRZ0NUoEi3WunCtWJZq0/IQN3KwfdI3uTZXYTK5xDjvw5tq/gR/BzmHKB2PZ71XGO/Hl5CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:28:50.800888Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.01434","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5ea599bd106616dbca0ca3e0fa459739275bf0a0c1e1a239ef2021edc0beef3e","sha256:6f88c34651997869b84590eac9412e98a610f41d2065009d360f5671243dcdda"],"state_sha256":"9565c5575b4182e2aa339b86c79c5da89490b5793082dd29292c63001aad54b7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0GKPurfxMsK+eFmhsfJJlOdPb+o5WtChbKNj43xre5+lfc4kl6zOiaWYd1n233JoX8FufPwAlj/irl2aadySBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T19:26:46.605609Z","bundle_sha256":"5fe93104b42023878f9c9b22e22a45b98d8dd1fb69803ec3ee75c2a5abe09c16"}}