{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:JHBPSG2DBET3GBHQFCSLBOVM5A","short_pith_number":"pith:JHBPSG2D","canonical_record":{"source":{"id":"cs/0603041","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cs.CV","submitted_at":"2006-03-09T17:14:00Z","cross_cats_sorted":[],"title_canon_sha256":"15f1f74bc02efa581c45af16609ee49c8e66446c19e224535e09ce4f7f089bcc","abstract_canon_sha256":"24bb202bc895c3e0621da67377548bd74abc6c1c5c64d8d343173bb485b2d151"},"schema_version":"1.0"},"canonical_sha256":"49c2f91b430927b304f028a4b0baace8249fcfdd104d3f5bababe42213a0cfe9","source":{"kind":"arxiv","id":"cs/0603041","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cs/0603041","created_at":"2026-07-04T14:53:52Z"},{"alias_kind":"arxiv_version","alias_value":"cs/0603041v1","created_at":"2026-07-04T14:53:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cs/0603041","created_at":"2026-07-04T14:53:52Z"},{"alias_kind":"pith_short_12","alias_value":"JHBPSG2DBET3","created_at":"2026-07-04T14:53:52Z"},{"alias_kind":"pith_short_16","alias_value":"JHBPSG2DBET3GBHQ","created_at":"2026-07-04T14:53:52Z"},{"alias_kind":"pith_short_8","alias_value":"JHBPSG2D","created_at":"2026-07-04T14:53:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:JHBPSG2DBET3GBHQFCSLBOVM5A","target":"record","payload":{"canonical_record":{"source":{"id":"cs/0603041","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cs.CV","submitted_at":"2006-03-09T17:14:00Z","cross_cats_sorted":[],"title_canon_sha256":"15f1f74bc02efa581c45af16609ee49c8e66446c19e224535e09ce4f7f089bcc","abstract_canon_sha256":"24bb202bc895c3e0621da67377548bd74abc6c1c5c64d8d343173bb485b2d151"},"schema_version":"1.0"},"canonical_sha256":"49c2f91b430927b304f028a4b0baace8249fcfdd104d3f5bababe42213a0cfe9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:53:52.132777Z","signature_b64":"TifZsAxMHlmj0adERrq/M/ygDO+3Sp9TJMxR/ONZQGbuZaPxqCzJGplCm2pXO1p+dUVP9eG50y1pI55chL18DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"49c2f91b430927b304f028a4b0baace8249fcfdd104d3f5bababe42213a0cfe9","last_reissued_at":"2026-07-04T14:53:52.132404Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:53:52.132404Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cs/0603041","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":"2026-07-04T14:53:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xXZvaNe9FZ2uGPapnYhJ2RDb0xeuIA2gEwnI3UrOzK8q3k+VuILxrngQp2z5NGyEdSTOurnkdDLdVADN6AJtCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-12T14:55:23.018682Z"},"content_sha256":"2b2400929a3f3729b9864bcdcc39e85f049446076b818ed769c413067dc8601d","schema_version":"1.0","event_id":"sha256:2b2400929a3f3729b9864bcdcc39e85f049446076b818ed769c413067dc8601d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:JHBPSG2DBET3GBHQFCSLBOVM5A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Locally Adaptive Block Thresholding Method with Continuity Constraint","license":"","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Amit Verma, Prasanta K. Panigrahi, S. Hemachander, Siddharth Arora","submitted_at":"2006-03-09T17:14:00Z","abstract_excerpt":"We present an algorithm that enables one to perform locally adaptive block thresholding, while maintaining image continuity. Images are divided into sub-images based some standard image attributes and thresholding technique is employed over the sub-images. The present algorithm makes use of the thresholds of neighboring sub-images to calculate a range of values. The image continuity is taken care by choosing the threshold of the sub-image under consideration to lie within the above range. After examining the average range values for various sub-image sizes of a variety of images, it was found "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cs/0603041","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/cs/0603041/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":"2026-07-04T14:53:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AJbM+i6lM/YqFov0ln9MU/LscD2qeY35/Pz3J3QrBBhpotLfmgmUbX6U4ALQ8ivaOfFCI3QFsYbeyvlbwOuyDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-12T14:55:23.019339Z"},"content_sha256":"67196fc0178ac8506d2a34122d3d238e82e091f686ecf67ef8920ac5f48a043d","schema_version":"1.0","event_id":"sha256:67196fc0178ac8506d2a34122d3d238e82e091f686ecf67ef8920ac5f48a043d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JHBPSG2DBET3GBHQFCSLBOVM5A/bundle.json","state_url":"https://pith.science/pith/JHBPSG2DBET3GBHQFCSLBOVM5A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JHBPSG2DBET3GBHQFCSLBOVM5A/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":"2026-07-12T14:55:23Z","links":{"resolver":"https://pith.science/pith/JHBPSG2DBET3GBHQFCSLBOVM5A","bundle":"https://pith.science/pith/JHBPSG2DBET3GBHQFCSLBOVM5A/bundle.json","state":"https://pith.science/pith/JHBPSG2DBET3GBHQFCSLBOVM5A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JHBPSG2DBET3GBHQFCSLBOVM5A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:JHBPSG2DBET3GBHQFCSLBOVM5A","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":"24bb202bc895c3e0621da67377548bd74abc6c1c5c64d8d343173bb485b2d151","cross_cats_sorted":[],"license":"","primary_cat":"cs.CV","submitted_at":"2006-03-09T17:14:00Z","title_canon_sha256":"15f1f74bc02efa581c45af16609ee49c8e66446c19e224535e09ce4f7f089bcc"},"schema_version":"1.0","source":{"id":"cs/0603041","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cs/0603041","created_at":"2026-07-04T14:53:52Z"},{"alias_kind":"arxiv_version","alias_value":"cs/0603041v1","created_at":"2026-07-04T14:53:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cs/0603041","created_at":"2026-07-04T14:53:52Z"},{"alias_kind":"pith_short_12","alias_value":"JHBPSG2DBET3","created_at":"2026-07-04T14:53:52Z"},{"alias_kind":"pith_short_16","alias_value":"JHBPSG2DBET3GBHQ","created_at":"2026-07-04T14:53:52Z"},{"alias_kind":"pith_short_8","alias_value":"JHBPSG2D","created_at":"2026-07-04T14:53:52Z"}],"graph_snapshots":[{"event_id":"sha256:67196fc0178ac8506d2a34122d3d238e82e091f686ecf67ef8920ac5f48a043d","target":"graph","created_at":"2026-07-04T14:53:52Z","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/cs/0603041/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present an algorithm that enables one to perform locally adaptive block thresholding, while maintaining image continuity. Images are divided into sub-images based some standard image attributes and thresholding technique is employed over the sub-images. The present algorithm makes use of the thresholds of neighboring sub-images to calculate a range of values. The image continuity is taken care by choosing the threshold of the sub-image under consideration to lie within the above range. After examining the average range values for various sub-image sizes of a variety of images, it was found ","authors_text":"Amit Verma, Prasanta K. Panigrahi, S. Hemachander, Siddharth Arora","cross_cats":[],"headline":"","license":"","primary_cat":"cs.CV","submitted_at":"2006-03-09T17:14:00Z","title":"Locally Adaptive Block Thresholding Method with Continuity Constraint"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cs/0603041","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":"sha256:2b2400929a3f3729b9864bcdcc39e85f049446076b818ed769c413067dc8601d","target":"record","created_at":"2026-07-04T14:53:52Z","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":"24bb202bc895c3e0621da67377548bd74abc6c1c5c64d8d343173bb485b2d151","cross_cats_sorted":[],"license":"","primary_cat":"cs.CV","submitted_at":"2006-03-09T17:14:00Z","title_canon_sha256":"15f1f74bc02efa581c45af16609ee49c8e66446c19e224535e09ce4f7f089bcc"},"schema_version":"1.0","source":{"id":"cs/0603041","kind":"arxiv","version":1}},"canonical_sha256":"49c2f91b430927b304f028a4b0baace8249fcfdd104d3f5bababe42213a0cfe9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"49c2f91b430927b304f028a4b0baace8249fcfdd104d3f5bababe42213a0cfe9","first_computed_at":"2026-07-04T14:53:52.132404Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:53:52.132404Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TifZsAxMHlmj0adERrq/M/ygDO+3Sp9TJMxR/ONZQGbuZaPxqCzJGplCm2pXO1p+dUVP9eG50y1pI55chL18DQ==","signature_status":"signed_v1","signed_at":"2026-07-04T14:53:52.132777Z","signed_message":"canonical_sha256_bytes"},"source_id":"cs/0603041","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2b2400929a3f3729b9864bcdcc39e85f049446076b818ed769c413067dc8601d","sha256:67196fc0178ac8506d2a34122d3d238e82e091f686ecf67ef8920ac5f48a043d"],"state_sha256":"3320c03e13471731ec239e4aa1e40be073dc2699c101e1cfd8555e841fa5c115"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gCkp7Dk+OsXXcs4SAREehvAuRdGAptENVka+LMAQvHj7za4DZ9v4uGKGNEcxTTJZFWG+eG9WMfzRKms+e6D1DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-12T14:55:23.023380Z","bundle_sha256":"87ab3d1ef6782c0595b71fc3c438f8853a26c00270357eb4a222c5026fb15901"}}