{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:GHI3IPERJ7KOQUTI3QSMGY3RHU","short_pith_number":"pith:GHI3IPER","canonical_record":{"source":{"id":"2106.13029","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-06-24T14:06:06Z","cross_cats_sorted":[],"title_canon_sha256":"56251397a68d2106ec4268cfc3a37cc2885c9f64925bb3118c6b2b593dc45cf3","abstract_canon_sha256":"79a81b49c8bb6bb9cdc9e70939adf5ebf758bd1c3e699ce0d6928c4174a0aa7e"},"schema_version":"1.0"},"canonical_sha256":"31d1b43c914fd4e85268dc24c363713d29d2c2cc7c10afff5274f1f2eaa2c7e9","source":{"kind":"arxiv","id":"2106.13029","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.13029","created_at":"2026-07-05T03:13:30Z"},{"alias_kind":"arxiv_version","alias_value":"2106.13029v2","created_at":"2026-07-05T03:13:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.13029","created_at":"2026-07-05T03:13:30Z"},{"alias_kind":"pith_short_12","alias_value":"GHI3IPERJ7KO","created_at":"2026-07-05T03:13:30Z"},{"alias_kind":"pith_short_16","alias_value":"GHI3IPERJ7KOQUTI","created_at":"2026-07-05T03:13:30Z"},{"alias_kind":"pith_short_8","alias_value":"GHI3IPER","created_at":"2026-07-05T03:13:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:GHI3IPERJ7KOQUTI3QSMGY3RHU","target":"record","payload":{"canonical_record":{"source":{"id":"2106.13029","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-06-24T14:06:06Z","cross_cats_sorted":[],"title_canon_sha256":"56251397a68d2106ec4268cfc3a37cc2885c9f64925bb3118c6b2b593dc45cf3","abstract_canon_sha256":"79a81b49c8bb6bb9cdc9e70939adf5ebf758bd1c3e699ce0d6928c4174a0aa7e"},"schema_version":"1.0"},"canonical_sha256":"31d1b43c914fd4e85268dc24c363713d29d2c2cc7c10afff5274f1f2eaa2c7e9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:13:30.164612Z","signature_b64":"LgvifNYYv0MajgKPshFV93RZ96MTlhHKFh2XRdpGOuxJ5QW3VMJcoYVbGMfQnJIvla0W2OhVUlPvFKUThwNcAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"31d1b43c914fd4e85268dc24c363713d29d2c2cc7c10afff5274f1f2eaa2c7e9","last_reissued_at":"2026-07-05T03:13:30.164211Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:13:30.164211Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2106.13029","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":"2026-07-05T03:13:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EfLw8eKGPPcFvQ8ZMVQXzF7oLwI3xvQ+qSmCh0c1cVk2b4OzQQl5D3ayheeFXJ2jvxQNdS2gb8gVKeiuxVq9Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T05:37:51.221586Z"},"content_sha256":"74634956c0a892b38d54ae64196b96a2b43005ddf85fe966f20e970ddd7f007e","schema_version":"1.0","event_id":"sha256:74634956c0a892b38d54ae64196b96a2b43005ddf85fe966f20e970ddd7f007e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:GHI3IPERJ7KOQUTI3QSMGY3RHU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"PERT: A Progressively Region-based Network for Scene Text Removal","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Hongtao Xie, Shancheng Fang, Yadong Qu, Yongdong Zhang, Yuxin Wang","submitted_at":"2021-06-24T14:06:06Z","abstract_excerpt":"Scene text removal (STR) contains two processes: text localization and background reconstruction. Through integrating both processes into a single network, previous methods provide an implicit erasure guidance by modifying all pixels in the entire image. However, there exists two problems: 1) the implicit erasure guidance causes the excessive erasure to non-text areas; 2) the one-stage erasure lacks the exhaustive removal of text region. In this paper, we propose a ProgrEssively Region-based scene Text eraser (PERT), introducing an explicit erasure guidance and performing balanced multi-stage "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.13029","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/2106.13029/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":"2026-07-05T03:13:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZZ7Cnxo7kQ8GBQEIDO4NsYch+/ghpOEcRV2Ul1YFyjzqB5Me0xFpw88TaaBJeNDb3qSD+d0ZtxpmCttV42RqDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T05:37:51.222494Z"},"content_sha256":"6cb2584a9b512e65377014c39a431aad0777bf00833221d963bfc0fc70c8e8b2","schema_version":"1.0","event_id":"sha256:6cb2584a9b512e65377014c39a431aad0777bf00833221d963bfc0fc70c8e8b2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GHI3IPERJ7KOQUTI3QSMGY3RHU/bundle.json","state_url":"https://pith.science/pith/GHI3IPERJ7KOQUTI3QSMGY3RHU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GHI3IPERJ7KOQUTI3QSMGY3RHU/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":"2026-08-01T05:37:51Z","links":{"resolver":"https://pith.science/pith/GHI3IPERJ7KOQUTI3QSMGY3RHU","bundle":"https://pith.science/pith/GHI3IPERJ7KOQUTI3QSMGY3RHU/bundle.json","state":"https://pith.science/pith/GHI3IPERJ7KOQUTI3QSMGY3RHU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GHI3IPERJ7KOQUTI3QSMGY3RHU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:GHI3IPERJ7KOQUTI3QSMGY3RHU","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":"79a81b49c8bb6bb9cdc9e70939adf5ebf758bd1c3e699ce0d6928c4174a0aa7e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-06-24T14:06:06Z","title_canon_sha256":"56251397a68d2106ec4268cfc3a37cc2885c9f64925bb3118c6b2b593dc45cf3"},"schema_version":"1.0","source":{"id":"2106.13029","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.13029","created_at":"2026-07-05T03:13:30Z"},{"alias_kind":"arxiv_version","alias_value":"2106.13029v2","created_at":"2026-07-05T03:13:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.13029","created_at":"2026-07-05T03:13:30Z"},{"alias_kind":"pith_short_12","alias_value":"GHI3IPERJ7KO","created_at":"2026-07-05T03:13:30Z"},{"alias_kind":"pith_short_16","alias_value":"GHI3IPERJ7KOQUTI","created_at":"2026-07-05T03:13:30Z"},{"alias_kind":"pith_short_8","alias_value":"GHI3IPER","created_at":"2026-07-05T03:13:30Z"}],"graph_snapshots":[{"event_id":"sha256:6cb2584a9b512e65377014c39a431aad0777bf00833221d963bfc0fc70c8e8b2","target":"graph","created_at":"2026-07-05T03:13:30Z","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/2106.13029/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Scene text removal (STR) contains two processes: text localization and background reconstruction. Through integrating both processes into a single network, previous methods provide an implicit erasure guidance by modifying all pixels in the entire image. However, there exists two problems: 1) the implicit erasure guidance causes the excessive erasure to non-text areas; 2) the one-stage erasure lacks the exhaustive removal of text region. In this paper, we propose a ProgrEssively Region-based scene Text eraser (PERT), introducing an explicit erasure guidance and performing balanced multi-stage ","authors_text":"Hongtao Xie, Shancheng Fang, Yadong Qu, Yongdong Zhang, Yuxin Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-06-24T14:06:06Z","title":"PERT: A Progressively Region-based Network for Scene Text Removal"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.13029","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":"sha256:74634956c0a892b38d54ae64196b96a2b43005ddf85fe966f20e970ddd7f007e","target":"record","created_at":"2026-07-05T03:13:30Z","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":"79a81b49c8bb6bb9cdc9e70939adf5ebf758bd1c3e699ce0d6928c4174a0aa7e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-06-24T14:06:06Z","title_canon_sha256":"56251397a68d2106ec4268cfc3a37cc2885c9f64925bb3118c6b2b593dc45cf3"},"schema_version":"1.0","source":{"id":"2106.13029","kind":"arxiv","version":2}},"canonical_sha256":"31d1b43c914fd4e85268dc24c363713d29d2c2cc7c10afff5274f1f2eaa2c7e9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"31d1b43c914fd4e85268dc24c363713d29d2c2cc7c10afff5274f1f2eaa2c7e9","first_computed_at":"2026-07-05T03:13:30.164211Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:13:30.164211Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LgvifNYYv0MajgKPshFV93RZ96MTlhHKFh2XRdpGOuxJ5QW3VMJcoYVbGMfQnJIvla0W2OhVUlPvFKUThwNcAA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:13:30.164612Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.13029","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:74634956c0a892b38d54ae64196b96a2b43005ddf85fe966f20e970ddd7f007e","sha256:6cb2584a9b512e65377014c39a431aad0777bf00833221d963bfc0fc70c8e8b2"],"state_sha256":"8366ca40d4859b09ec29905ff9c4a9598053c76a778442cb2fddfc3b20856987"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"09iwnyXD1SnGy+/lrG5DYyAbWiCJrDYcp7vRD3o+KCk6oUPGa3cqyx2pRavJg6BgivImrdpXxCBoZFktZa3rAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-01T05:37:51.230764Z","bundle_sha256":"51b29bf57267cf93915cf0daaf932b37ec4d122a6059ae8049248c3303985c54"}}