{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:JAV34ETBEBLXCRRJZDYZBXSRKV","short_pith_number":"pith:JAV34ETB","canonical_record":{"source":{"id":"2606.31427","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-06-30T09:51:34Z","cross_cats_sorted":["cs.CR"],"title_canon_sha256":"6ffcfd5fb4d940ba497fd47586eb5952a9a196819c462da5805054ae610f46ae","abstract_canon_sha256":"eec0da9cdd67673735aefb76c977d9d476d9c8a51f13459ddb9dca043efffa59"},"schema_version":"1.0"},"canonical_sha256":"482bbe12612057714629c8f190de51556f72e26f32d71d83573a18fbd569fbc5","source":{"kind":"arxiv","id":"2606.31427","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.31427","created_at":"2026-07-01T01:18:02Z"},{"alias_kind":"arxiv_version","alias_value":"2606.31427v1","created_at":"2026-07-01T01:18:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.31427","created_at":"2026-07-01T01:18:02Z"},{"alias_kind":"pith_short_12","alias_value":"JAV34ETBEBLX","created_at":"2026-07-01T01:18:02Z"},{"alias_kind":"pith_short_16","alias_value":"JAV34ETBEBLXCRRJ","created_at":"2026-07-01T01:18:02Z"},{"alias_kind":"pith_short_8","alias_value":"JAV34ETB","created_at":"2026-07-01T01:18:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:JAV34ETBEBLXCRRJZDYZBXSRKV","target":"record","payload":{"canonical_record":{"source":{"id":"2606.31427","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-06-30T09:51:34Z","cross_cats_sorted":["cs.CR"],"title_canon_sha256":"6ffcfd5fb4d940ba497fd47586eb5952a9a196819c462da5805054ae610f46ae","abstract_canon_sha256":"eec0da9cdd67673735aefb76c977d9d476d9c8a51f13459ddb9dca043efffa59"},"schema_version":"1.0"},"canonical_sha256":"482bbe12612057714629c8f190de51556f72e26f32d71d83573a18fbd569fbc5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-01T01:18:02.906762Z","signature_b64":"Qyq5pZGPjaoU/QZ5oYx0Gmr26Q9h6vCc3MHDOpsadcmK0YpSWnpII5lU3EwcpXlEV6LV9EK/BPXLSwF/trT0Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"482bbe12612057714629c8f190de51556f72e26f32d71d83573a18fbd569fbc5","last_reissued_at":"2026-07-01T01:18:02.906350Z","signature_status":"signed_v1","first_computed_at":"2026-07-01T01:18:02.906350Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.31427","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":"2026-07-01T01:18:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BMkxP4RpJa8CQc9koiLfkHmHsm4wuPLyCfNyxROv2DyIlWAY2Kzh9sAtca4QZ6/VYYk/6w8QiLHl/U3OTV0pAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T06:45:17.277484Z"},"content_sha256":"f0c9bb78b0e3b9e4b6726123e5ed8b8665d61f42086066ec9db02d53d62463bb","schema_version":"1.0","event_id":"sha256:f0c9bb78b0e3b9e4b6726123e5ed8b8665d61f42086066ec9db02d53d62463bb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:JAV34ETBEBLXCRRJZDYZBXSRKV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"No Prompt, No Leaks: A Robust Generative Steganography Framework via Prompt-Free Diffusion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CR"],"primary_cat":"cs.CV","authors_text":"Fen Xiao, Jingwen Cai, Shuhua Deng, Xieping Gao","submitted_at":"2026-06-30T09:51:34Z","abstract_excerpt":"Generative image steganography synthesizes stego images directly from secret information to achieve inherent security advantages. Latent Diffusion Models (LDMs) have recently emerged as a fundamental image steganography framework that modulates secret latent representations with text prompts. Limited by the inflexibility of text prompts, these methods still struggle to generate high-quality stego images and accurately recover secret images. In this work, we propose a prompt-free diffusion image steganography framework that integrates style semantic priors to control more robust and reliable st"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.31427","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/2606.31427/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":"2026-07-01T01:18:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cjEQIuvExrd/WfrmUSo+svsxxHnsKnM1ou83Xt+5QHXqTrHxQI/BPkWloOYDH/nQlOfDO4mEXh+eYVzAJAjWBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T06:45:17.277873Z"},"content_sha256":"71a26a1086e8684015cba773dbd10b9eea83df54b93c944b1636f0cb49e8c8e2","schema_version":"1.0","event_id":"sha256:71a26a1086e8684015cba773dbd10b9eea83df54b93c944b1636f0cb49e8c8e2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JAV34ETBEBLXCRRJZDYZBXSRKV/bundle.json","state_url":"https://pith.science/pith/JAV34ETBEBLXCRRJZDYZBXSRKV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JAV34ETBEBLXCRRJZDYZBXSRKV/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":"2026-07-02T06:45:17Z","links":{"resolver":"https://pith.science/pith/JAV34ETBEBLXCRRJZDYZBXSRKV","bundle":"https://pith.science/pith/JAV34ETBEBLXCRRJZDYZBXSRKV/bundle.json","state":"https://pith.science/pith/JAV34ETBEBLXCRRJZDYZBXSRKV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JAV34ETBEBLXCRRJZDYZBXSRKV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:JAV34ETBEBLXCRRJZDYZBXSRKV","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":"eec0da9cdd67673735aefb76c977d9d476d9c8a51f13459ddb9dca043efffa59","cross_cats_sorted":["cs.CR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-06-30T09:51:34Z","title_canon_sha256":"6ffcfd5fb4d940ba497fd47586eb5952a9a196819c462da5805054ae610f46ae"},"schema_version":"1.0","source":{"id":"2606.31427","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.31427","created_at":"2026-07-01T01:18:02Z"},{"alias_kind":"arxiv_version","alias_value":"2606.31427v1","created_at":"2026-07-01T01:18:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.31427","created_at":"2026-07-01T01:18:02Z"},{"alias_kind":"pith_short_12","alias_value":"JAV34ETBEBLX","created_at":"2026-07-01T01:18:02Z"},{"alias_kind":"pith_short_16","alias_value":"JAV34ETBEBLXCRRJ","created_at":"2026-07-01T01:18:02Z"},{"alias_kind":"pith_short_8","alias_value":"JAV34ETB","created_at":"2026-07-01T01:18:02Z"}],"graph_snapshots":[{"event_id":"sha256:71a26a1086e8684015cba773dbd10b9eea83df54b93c944b1636f0cb49e8c8e2","target":"graph","created_at":"2026-07-01T01:18:02Z","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/2606.31427/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Generative image steganography synthesizes stego images directly from secret information to achieve inherent security advantages. Latent Diffusion Models (LDMs) have recently emerged as a fundamental image steganography framework that modulates secret latent representations with text prompts. Limited by the inflexibility of text prompts, these methods still struggle to generate high-quality stego images and accurately recover secret images. In this work, we propose a prompt-free diffusion image steganography framework that integrates style semantic priors to control more robust and reliable st","authors_text":"Fen Xiao, Jingwen Cai, Shuhua Deng, Xieping Gao","cross_cats":["cs.CR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-06-30T09:51:34Z","title":"No Prompt, No Leaks: A Robust Generative Steganography Framework via Prompt-Free Diffusion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.31427","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:f0c9bb78b0e3b9e4b6726123e5ed8b8665d61f42086066ec9db02d53d62463bb","target":"record","created_at":"2026-07-01T01:18:02Z","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":"eec0da9cdd67673735aefb76c977d9d476d9c8a51f13459ddb9dca043efffa59","cross_cats_sorted":["cs.CR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-06-30T09:51:34Z","title_canon_sha256":"6ffcfd5fb4d940ba497fd47586eb5952a9a196819c462da5805054ae610f46ae"},"schema_version":"1.0","source":{"id":"2606.31427","kind":"arxiv","version":1}},"canonical_sha256":"482bbe12612057714629c8f190de51556f72e26f32d71d83573a18fbd569fbc5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"482bbe12612057714629c8f190de51556f72e26f32d71d83573a18fbd569fbc5","first_computed_at":"2026-07-01T01:18:02.906350Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-01T01:18:02.906350Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Qyq5pZGPjaoU/QZ5oYx0Gmr26Q9h6vCc3MHDOpsadcmK0YpSWnpII5lU3EwcpXlEV6LV9EK/BPXLSwF/trT0Cw==","signature_status":"signed_v1","signed_at":"2026-07-01T01:18:02.906762Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.31427","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f0c9bb78b0e3b9e4b6726123e5ed8b8665d61f42086066ec9db02d53d62463bb","sha256:71a26a1086e8684015cba773dbd10b9eea83df54b93c944b1636f0cb49e8c8e2"],"state_sha256":"6e0eabb0dada28828b8e4e4c5c8657ba8f30e011531ecfeda2ec06cd0074ea28"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TMTgntXyEk4t3+SIIuhz/1e7D3Q2VGFgjE/QBlsVJk3NPnbARrR7ZqiLM/wOC08PIxxKdCnlhmoTmOALhHiXCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-02T06:45:17.279996Z","bundle_sha256":"75712fb1f10f1f235731f5cec1769d7fc680b295cdfe5733ad5fe316ae3b805b"}}