{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:DZCIKVACDUHXIG44ZVAMICNIS7","short_pith_number":"pith:DZCIKVAC","canonical_record":{"source":{"id":"1912.03656","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-12-08T11:20:35Z","cross_cats_sorted":["cs.CL","cs.LG"],"title_canon_sha256":"76c44bef26a289b898b7e6cee0dd3251825fed80c3608d950f83ef95e0fd8906","abstract_canon_sha256":"eec0058b95536779fd9cc20a2116559f3f3feea5626381b2d788c070a5706b2d"},"schema_version":"1.0"},"canonical_sha256":"1e448554021d0f741b9ccd40c409a897ffeca44e3d1a1c508080bc6a9415a626","source":{"kind":"arxiv","id":"1912.03656","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.03656","created_at":"2026-07-05T00:44:57Z"},{"alias_kind":"arxiv_version","alias_value":"1912.03656v2","created_at":"2026-07-05T00:44:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.03656","created_at":"2026-07-05T00:44:57Z"},{"alias_kind":"pith_short_12","alias_value":"DZCIKVACDUHX","created_at":"2026-07-05T00:44:57Z"},{"alias_kind":"pith_short_16","alias_value":"DZCIKVACDUHXIG44","created_at":"2026-07-05T00:44:57Z"},{"alias_kind":"pith_short_8","alias_value":"DZCIKVAC","created_at":"2026-07-05T00:44:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:DZCIKVACDUHXIG44ZVAMICNIS7","target":"record","payload":{"canonical_record":{"source":{"id":"1912.03656","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-12-08T11:20:35Z","cross_cats_sorted":["cs.CL","cs.LG"],"title_canon_sha256":"76c44bef26a289b898b7e6cee0dd3251825fed80c3608d950f83ef95e0fd8906","abstract_canon_sha256":"eec0058b95536779fd9cc20a2116559f3f3feea5626381b2d788c070a5706b2d"},"schema_version":"1.0"},"canonical_sha256":"1e448554021d0f741b9ccd40c409a897ffeca44e3d1a1c508080bc6a9415a626","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:44:57.456797Z","signature_b64":"ZTo2s7c4dRMMPK+P0gByV+DEgjPc2Oj34NVPZ9cPo33dx1TlrwGEFruSy7WDn84jhcn4og9sev/KniCl0o9nAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1e448554021d0f741b9ccd40c409a897ffeca44e3d1a1c508080bc6a9415a626","last_reissued_at":"2026-07-05T00:44:57.456331Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:44:57.456331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1912.03656","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:44:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YtUUCgEWKLekBUDCNwGC/vhSFAUbjRNyizycyesl4PpD7kntNbiAdQ022+DHiJmFwZWtcHeIckSfmoTo18P7AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T05:27:50.786921Z"},"content_sha256":"17da7079fd8c92d1beb5f7518aed0efc0f641b30572b556729a73c339ac87115","schema_version":"1.0","event_id":"sha256:17da7079fd8c92d1beb5f7518aed0efc0f641b30572b556729a73c339ac87115"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:DZCIKVACDUHXIG44ZVAMICNIS7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bidirectional Scene Text Recognition with a Single Decoder","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CL","cs.LG"],"primary_cat":"cs.CV","authors_text":"Maarten de Rijke, Maurits Bleeker","submitted_at":"2019-12-08T11:20:35Z","abstract_excerpt":"Scene Text Recognition (STR) is the problem of recognizing the correct word or character sequence in a cropped word image. To obtain more robust output sequences, the notion of bidirectional STR has been introduced. So far, bidirectional STRs have been implemented by using two separate decoders; one for left-to-right decoding and one for right-to-left. Having two separate decoders for almost the same task with the same output space is undesirable from a computational and optimization point of view. We introduce the bidirectional Scene Text Transformer (Bi-STET), a novel bidirectional STR metho"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.03656","kind":"arxiv","version":2},"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/1912.03656/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":"2026-07-05T00:44:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C+1826zv94ZRh+4vP84KKit9ssms1nZ2peohg+jbMkJ7+yhrHuwTNqK3MxsOk3xL4N8HPbOv1r1mJO0MDsz/BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T05:27:50.787538Z"},"content_sha256":"437a10f570eb78db99c1acc2b47a7b917386e6bf87a839dd73c0a1e10a014603","schema_version":"1.0","event_id":"sha256:437a10f570eb78db99c1acc2b47a7b917386e6bf87a839dd73c0a1e10a014603"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DZCIKVACDUHXIG44ZVAMICNIS7/bundle.json","state_url":"https://pith.science/pith/DZCIKVACDUHXIG44ZVAMICNIS7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DZCIKVACDUHXIG44ZVAMICNIS7/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":"2026-08-15T05:27:50Z","links":{"resolver":"https://pith.science/pith/DZCIKVACDUHXIG44ZVAMICNIS7","bundle":"https://pith.science/pith/DZCIKVACDUHXIG44ZVAMICNIS7/bundle.json","state":"https://pith.science/pith/DZCIKVACDUHXIG44ZVAMICNIS7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DZCIKVACDUHXIG44ZVAMICNIS7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:DZCIKVACDUHXIG44ZVAMICNIS7","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":"eec0058b95536779fd9cc20a2116559f3f3feea5626381b2d788c070a5706b2d","cross_cats_sorted":["cs.CL","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-12-08T11:20:35Z","title_canon_sha256":"76c44bef26a289b898b7e6cee0dd3251825fed80c3608d950f83ef95e0fd8906"},"schema_version":"1.0","source":{"id":"1912.03656","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.03656","created_at":"2026-07-05T00:44:57Z"},{"alias_kind":"arxiv_version","alias_value":"1912.03656v2","created_at":"2026-07-05T00:44:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.03656","created_at":"2026-07-05T00:44:57Z"},{"alias_kind":"pith_short_12","alias_value":"DZCIKVACDUHX","created_at":"2026-07-05T00:44:57Z"},{"alias_kind":"pith_short_16","alias_value":"DZCIKVACDUHXIG44","created_at":"2026-07-05T00:44:57Z"},{"alias_kind":"pith_short_8","alias_value":"DZCIKVAC","created_at":"2026-07-05T00:44:57Z"}],"graph_snapshots":[{"event_id":"sha256:437a10f570eb78db99c1acc2b47a7b917386e6bf87a839dd73c0a1e10a014603","target":"graph","created_at":"2026-07-05T00:44:57Z","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/1912.03656/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Scene Text Recognition (STR) is the problem of recognizing the correct word or character sequence in a cropped word image. To obtain more robust output sequences, the notion of bidirectional STR has been introduced. So far, bidirectional STRs have been implemented by using two separate decoders; one for left-to-right decoding and one for right-to-left. Having two separate decoders for almost the same task with the same output space is undesirable from a computational and optimization point of view. We introduce the bidirectional Scene Text Transformer (Bi-STET), a novel bidirectional STR metho","authors_text":"Maarten de Rijke, Maurits Bleeker","cross_cats":["cs.CL","cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-12-08T11:20:35Z","title":"Bidirectional Scene Text Recognition with a Single Decoder"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.03656","kind":"arxiv","version":2},"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":"sha256:17da7079fd8c92d1beb5f7518aed0efc0f641b30572b556729a73c339ac87115","target":"record","created_at":"2026-07-05T00:44:57Z","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":"eec0058b95536779fd9cc20a2116559f3f3feea5626381b2d788c070a5706b2d","cross_cats_sorted":["cs.CL","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-12-08T11:20:35Z","title_canon_sha256":"76c44bef26a289b898b7e6cee0dd3251825fed80c3608d950f83ef95e0fd8906"},"schema_version":"1.0","source":{"id":"1912.03656","kind":"arxiv","version":2}},"canonical_sha256":"1e448554021d0f741b9ccd40c409a897ffeca44e3d1a1c508080bc6a9415a626","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e448554021d0f741b9ccd40c409a897ffeca44e3d1a1c508080bc6a9415a626","first_computed_at":"2026-07-05T00:44:57.456331Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:44:57.456331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZTo2s7c4dRMMPK+P0gByV+DEgjPc2Oj34NVPZ9cPo33dx1TlrwGEFruSy7WDn84jhcn4og9sev/KniCl0o9nAA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:44:57.456797Z","signed_message":"canonical_sha256_bytes"},"source_id":"1912.03656","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:17da7079fd8c92d1beb5f7518aed0efc0f641b30572b556729a73c339ac87115","sha256:437a10f570eb78db99c1acc2b47a7b917386e6bf87a839dd73c0a1e10a014603"],"state_sha256":"dbaa8cdd08c3aa82aca90d82afe3127e9c8aca0b4244f811b39fd095fd4f3838"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gth3kcA1vSXTnWQUliJsBUPj/X5LatVtGdmMshXklrxq+Ro6/AOqjxAkKCOyXQ1Zc5kNozw+UiTZgp51r0JACw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T05:27:50.791381Z","bundle_sha256":"46152d7f313d19d0d1a02a93f600cfb1a95d18ee0ccfe31855a3865aa278475b"}}