{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:NJD2ZKP47VW46EYF7GAQ66MEI5","short_pith_number":"pith:NJD2ZKP4","schema_version":"1.0","canonical_sha256":"6a47aca9fcfd6dcf1305f9810f798447740557c24eae2180c5430620f4fba951","source":{"kind":"arxiv","id":"2504.17594","version":1},"attestation_state":"computed","paper":{"title":"Tamper-evident Image using JPEG Fixed Points","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Siwei Lyu, Zhaofeng Si","submitted_at":"2025-04-24T14:22:13Z","abstract_excerpt":"An intriguing phenomenon about JPEG compression has been observed since two decades ago- after repeating JPEG compression and decompression, it leads to a stable image that does not change anymore, which is a fixed point. In this work, we prove the existence of fixed points in the essential JPEG procedures. We analyze JPEG compression and decompression processes, revealing the existence of fixed points that can be reached within a few iterations. These fixed points are diverse and preserve the image's visual quality, ensuring minimal distortion. This result is used to develop a method to creat"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2504.17594","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-04-24T14:22:13Z","cross_cats_sorted":[],"title_canon_sha256":"258c631289c43ecd9ed4af0f1738a584036b91e1da60968b6a78cc84356f0a15","abstract_canon_sha256":"fff6e28f1bda31034c23c1bda08dc5a05e14b78cac3d3ee2d21b8e512db84d60"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:53:31.911761Z","signature_b64":"yjAyw1qxk/cGBUSk3nHdBTViqHOEASoq414DsCRT99tFFbimlJ7GHF56x65wpMIDzaw850HGL9ROywnFdN9VDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6a47aca9fcfd6dcf1305f9810f798447740557c24eae2180c5430620f4fba951","last_reissued_at":"2026-07-05T10:53:31.911322Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:53:31.911322Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Tamper-evident Image using JPEG Fixed Points","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Siwei Lyu, Zhaofeng Si","submitted_at":"2025-04-24T14:22:13Z","abstract_excerpt":"An intriguing phenomenon about JPEG compression has been observed since two decades ago- after repeating JPEG compression and decompression, it leads to a stable image that does not change anymore, which is a fixed point. In this work, we prove the existence of fixed points in the essential JPEG procedures. We analyze JPEG compression and decompression processes, revealing the existence of fixed points that can be reached within a few iterations. These fixed points are diverse and preserve the image's visual quality, ensuring minimal distortion. This result is used to develop a method to creat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.17594","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/2504.17594/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2504.17594","created_at":"2026-07-05T10:53:31.911393+00:00"},{"alias_kind":"arxiv_version","alias_value":"2504.17594v1","created_at":"2026-07-05T10:53:31.911393+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.17594","created_at":"2026-07-05T10:53:31.911393+00:00"},{"alias_kind":"pith_short_12","alias_value":"NJD2ZKP47VW4","created_at":"2026-07-05T10:53:31.911393+00:00"},{"alias_kind":"pith_short_16","alias_value":"NJD2ZKP47VW46EYF","created_at":"2026-07-05T10:53:31.911393+00:00"},{"alias_kind":"pith_short_8","alias_value":"NJD2ZKP4","created_at":"2026-07-05T10:53:31.911393+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2504.17594","citing_title":"Tamper-evident Image using JPEG Fixed Points","ref_index":1,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/NJD2ZKP47VW46EYF7GAQ66MEI5","json":"https://pith.science/pith/NJD2ZKP47VW46EYF7GAQ66MEI5.json","graph_json":"https://pith.science/api/pith-number/NJD2ZKP47VW46EYF7GAQ66MEI5/graph.json","events_json":"https://pith.science/api/pith-number/NJD2ZKP47VW46EYF7GAQ66MEI5/events.json","paper":"https://pith.science/paper/NJD2ZKP4"},"agent_actions":{"view_html":"https://pith.science/pith/NJD2ZKP47VW46EYF7GAQ66MEI5","download_json":"https://pith.science/pith/NJD2ZKP47VW46EYF7GAQ66MEI5.json","view_paper":"https://pith.science/paper/NJD2ZKP4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2504.17594&json=true","fetch_graph":"https://pith.science/api/pith-number/NJD2ZKP47VW46EYF7GAQ66MEI5/graph.json","fetch_events":"https://pith.science/api/pith-number/NJD2ZKP47VW46EYF7GAQ66MEI5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NJD2ZKP47VW46EYF7GAQ66MEI5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NJD2ZKP47VW46EYF7GAQ66MEI5/action/storage_attestation","attest_author":"https://pith.science/pith/NJD2ZKP47VW46EYF7GAQ66MEI5/action/author_attestation","sign_citation":"https://pith.science/pith/NJD2ZKP47VW46EYF7GAQ66MEI5/action/citation_signature","submit_replication":"https://pith.science/pith/NJD2ZKP47VW46EYF7GAQ66MEI5/action/replication_record"}},"created_at":"2026-07-05T10:53:31.911393+00:00","updated_at":"2026-07-05T10:53:31.911393+00:00"}