{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:PI4XQEZM4P4YNE3DJQHCRBXMBZ","short_pith_number":"pith:PI4XQEZM","canonical_record":{"source":{"id":"2208.14558","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2022-08-30T22:36:19Z","cross_cats_sorted":[],"title_canon_sha256":"6ee953a5ec9190f6268cb7d7458b8878ec59788c210bb7a91be00ffde055761b","abstract_canon_sha256":"1203b033058a7de8064c79cf6a232ff199d52fbdff9cf4895d76d1a6d11889f7"},"schema_version":"1.0"},"canonical_sha256":"7a3978132ce3f98693634c0e2886ec0e5790d8d8bc75b49ff8ee43e41822f66d","source":{"kind":"arxiv","id":"2208.14558","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.14558","created_at":"2026-07-05T05:54:30Z"},{"alias_kind":"arxiv_version","alias_value":"2208.14558v2","created_at":"2026-07-05T05:54:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.14558","created_at":"2026-07-05T05:54:30Z"},{"alias_kind":"pith_short_12","alias_value":"PI4XQEZM4P4Y","created_at":"2026-07-05T05:54:30Z"},{"alias_kind":"pith_short_16","alias_value":"PI4XQEZM4P4YNE3D","created_at":"2026-07-05T05:54:30Z"},{"alias_kind":"pith_short_8","alias_value":"PI4XQEZM","created_at":"2026-07-05T05:54:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:PI4XQEZM4P4YNE3DJQHCRBXMBZ","target":"record","payload":{"canonical_record":{"source":{"id":"2208.14558","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2022-08-30T22:36:19Z","cross_cats_sorted":[],"title_canon_sha256":"6ee953a5ec9190f6268cb7d7458b8878ec59788c210bb7a91be00ffde055761b","abstract_canon_sha256":"1203b033058a7de8064c79cf6a232ff199d52fbdff9cf4895d76d1a6d11889f7"},"schema_version":"1.0"},"canonical_sha256":"7a3978132ce3f98693634c0e2886ec0e5790d8d8bc75b49ff8ee43e41822f66d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:54:30.654864Z","signature_b64":"pcy3DAKeoZ6p/RTw+Uoz6tcYzXjIXnDTJElc5f4JvvadLjhDfGNKI+oZWSTlTzYlTlgwG+TFgjJnDwObQyYtDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7a3978132ce3f98693634c0e2886ec0e5790d8d8bc75b49ff8ee43e41822f66d","last_reissued_at":"2026-07-05T05:54:30.654331Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:54:30.654331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2208.14558","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":"2026-07-05T05:54:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tyeaJJOFxmfONSquU8+HqyiPjvE9H5x9bFRZrVieKV/nnCcXBWLOyIBCWrjGAWM2IPFjItPES/tcR5yBjAwbDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-14T22:19:25.039023Z"},"content_sha256":"e3386f37a26c2366aa45475dfe226ca855c845cb7384d042d63876eb73c1c872","schema_version":"1.0","event_id":"sha256:e3386f37a26c2366aa45475dfe226ca855c845cb7384d042d63876eb73c1c872"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:PI4XQEZM4P4YNE3DJQHCRBXMBZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Augraphy: A Data Augmentation Library for Document Images","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Alexander Groleau, Jonathan Boarman, Kok Wei Chee, Samay Maini, Stefan Larson","submitted_at":"2022-08-30T22:36:19Z","abstract_excerpt":"This paper introduces Augraphy, a Python library for constructing data augmentation pipelines which produce distortions commonly seen in real-world document image datasets. Augraphy stands apart from other data augmentation tools by providing many different strategies to produce augmented versions of clean document images that appear as if they have been altered by standard office operations, such as printing, scanning, and faxing through old or dirty machines, degradation of ink over time, and handwritten markings. This paper discusses the Augraphy tool, and shows how it can be used both as a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.14558","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/2208.14558/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":"2026-07-05T05:54:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tElLw6mm4KUI0j18vKO09AOczKEPam/j/4ShjQpRmGlmQo8tFsE8Z63uJm6b6ijj+cXO7T9zXqo6hUTTCG79AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-14T22:19:25.039437Z"},"content_sha256":"1032bdae1ef44184d88d976bc47bd96d5b35cc85b117065eddbf3f62edcaaf9c","schema_version":"1.0","event_id":"sha256:1032bdae1ef44184d88d976bc47bd96d5b35cc85b117065eddbf3f62edcaaf9c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PI4XQEZM4P4YNE3DJQHCRBXMBZ/bundle.json","state_url":"https://pith.science/pith/PI4XQEZM4P4YNE3DJQHCRBXMBZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PI4XQEZM4P4YNE3DJQHCRBXMBZ/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":"2026-07-14T22:19:25Z","links":{"resolver":"https://pith.science/pith/PI4XQEZM4P4YNE3DJQHCRBXMBZ","bundle":"https://pith.science/pith/PI4XQEZM4P4YNE3DJQHCRBXMBZ/bundle.json","state":"https://pith.science/pith/PI4XQEZM4P4YNE3DJQHCRBXMBZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PI4XQEZM4P4YNE3DJQHCRBXMBZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:PI4XQEZM4P4YNE3DJQHCRBXMBZ","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":"1203b033058a7de8064c79cf6a232ff199d52fbdff9cf4895d76d1a6d11889f7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2022-08-30T22:36:19Z","title_canon_sha256":"6ee953a5ec9190f6268cb7d7458b8878ec59788c210bb7a91be00ffde055761b"},"schema_version":"1.0","source":{"id":"2208.14558","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.14558","created_at":"2026-07-05T05:54:30Z"},{"alias_kind":"arxiv_version","alias_value":"2208.14558v2","created_at":"2026-07-05T05:54:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.14558","created_at":"2026-07-05T05:54:30Z"},{"alias_kind":"pith_short_12","alias_value":"PI4XQEZM4P4Y","created_at":"2026-07-05T05:54:30Z"},{"alias_kind":"pith_short_16","alias_value":"PI4XQEZM4P4YNE3D","created_at":"2026-07-05T05:54:30Z"},{"alias_kind":"pith_short_8","alias_value":"PI4XQEZM","created_at":"2026-07-05T05:54:30Z"}],"graph_snapshots":[{"event_id":"sha256:1032bdae1ef44184d88d976bc47bd96d5b35cc85b117065eddbf3f62edcaaf9c","target":"graph","created_at":"2026-07-05T05:54:30Z","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/2208.14558/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper introduces Augraphy, a Python library for constructing data augmentation pipelines which produce distortions commonly seen in real-world document image datasets. Augraphy stands apart from other data augmentation tools by providing many different strategies to produce augmented versions of clean document images that appear as if they have been altered by standard office operations, such as printing, scanning, and faxing through old or dirty machines, degradation of ink over time, and handwritten markings. This paper discusses the Augraphy tool, and shows how it can be used both as a","authors_text":"Alexander Groleau, Jonathan Boarman, Kok Wei Chee, Samay Maini, Stefan Larson","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2022-08-30T22:36:19Z","title":"Augraphy: A Data Augmentation Library for Document Images"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.14558","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:e3386f37a26c2366aa45475dfe226ca855c845cb7384d042d63876eb73c1c872","target":"record","created_at":"2026-07-05T05:54:30Z","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":"1203b033058a7de8064c79cf6a232ff199d52fbdff9cf4895d76d1a6d11889f7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2022-08-30T22:36:19Z","title_canon_sha256":"6ee953a5ec9190f6268cb7d7458b8878ec59788c210bb7a91be00ffde055761b"},"schema_version":"1.0","source":{"id":"2208.14558","kind":"arxiv","version":2}},"canonical_sha256":"7a3978132ce3f98693634c0e2886ec0e5790d8d8bc75b49ff8ee43e41822f66d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7a3978132ce3f98693634c0e2886ec0e5790d8d8bc75b49ff8ee43e41822f66d","first_computed_at":"2026-07-05T05:54:30.654331Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:54:30.654331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pcy3DAKeoZ6p/RTw+Uoz6tcYzXjIXnDTJElc5f4JvvadLjhDfGNKI+oZWSTlTzYlTlgwG+TFgjJnDwObQyYtDw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:54:30.654864Z","signed_message":"canonical_sha256_bytes"},"source_id":"2208.14558","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e3386f37a26c2366aa45475dfe226ca855c845cb7384d042d63876eb73c1c872","sha256:1032bdae1ef44184d88d976bc47bd96d5b35cc85b117065eddbf3f62edcaaf9c"],"state_sha256":"7b0279d0378f241195cdebee8da1a27b09299a61325fc8dc53019b58eaab350b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"laGPmlgFUswfYLUd/Js81GDXHSxtiNSfD79ojMII8W80TXG1s2EN2sETRyC1PC25dLTQ1ynoPEkWZstDEP69Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-14T22:19:25.041744Z","bundle_sha256":"85799686364b8837be489525b4d2b41ebfbb51bba6f46d0d6d97b368ba254cce"}}