{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:GH4PDBEZO3OB74UEDA3YJVZZBI","short_pith_number":"pith:GH4PDBEZ","canonical_record":{"source":{"id":"1409.4883","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2014-09-17T07:33:46Z","cross_cats_sorted":[],"title_canon_sha256":"a19d7cbe26076ecce09ebbb8c7a5a922f6d7dd9075fec9e5858dfef13ef1e4a5","abstract_canon_sha256":"692ec4fb18159995b86477639cc582238a6c303087b7beaa7a58f0c07e9fe03e"},"schema_version":"1.0"},"canonical_sha256":"31f8f1849976dc1ff284183784d7390a2ba4a0ab8916b0d8ff9c725c154950ca","source":{"kind":"arxiv","id":"1409.4883","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.4883","created_at":"2026-05-18T02:42:38Z"},{"alias_kind":"arxiv_version","alias_value":"1409.4883v1","created_at":"2026-05-18T02:42:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.4883","created_at":"2026-05-18T02:42:38Z"},{"alias_kind":"pith_short_12","alias_value":"GH4PDBEZO3OB","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"GH4PDBEZO3OB74UE","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"GH4PDBEZ","created_at":"2026-05-18T12:28:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:GH4PDBEZO3OB74UEDA3YJVZZBI","target":"record","payload":{"canonical_record":{"source":{"id":"1409.4883","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2014-09-17T07:33:46Z","cross_cats_sorted":[],"title_canon_sha256":"a19d7cbe26076ecce09ebbb8c7a5a922f6d7dd9075fec9e5858dfef13ef1e4a5","abstract_canon_sha256":"692ec4fb18159995b86477639cc582238a6c303087b7beaa7a58f0c07e9fe03e"},"schema_version":"1.0"},"canonical_sha256":"31f8f1849976dc1ff284183784d7390a2ba4a0ab8916b0d8ff9c725c154950ca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:42:38.468399Z","signature_b64":"OZqOAvQ1BbMnFa3TMb7UP2t75RohJuhprueFvRJH/yL+MktoLNmVF3D2v0f9TLwoIoxlz1UhUmBcd3TP/vBADw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"31f8f1849976dc1ff284183784d7390a2ba4a0ab8916b0d8ff9c725c154950ca","last_reissued_at":"2026-05-18T02:42:38.467889Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:42:38.467889Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.4883","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":"2026-05-18T02:42:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lLPfQ/4ZdlRtQGrIx3Rt1nSvUZ7bD64xrSNLC4148Rt3Cqar10tApROwGXQwOHdDLvGeM0U+9V0Odsh5CmZqBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T19:07:34.983673Z"},"content_sha256":"5ea7678f876f2be8b0ee1d16f72b043495a38cb4247ea30408ba8f301e8a4a4c","schema_version":"1.0","event_id":"sha256:5ea7678f876f2be8b0ee1d16f72b043495a38cb4247ea30408ba8f301e8a4a4c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:GH4PDBEZO3OB74UEDA3YJVZZBI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Developing a Video Steganography Toolkit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.MM","authors_text":"James Ridgway, Mike Stannett","submitted_at":"2014-09-17T07:33:46Z","abstract_excerpt":"Although techniques for separate image and audio steganography are widely known, relatively little has been described concerning the hiding of information within video streams (\"video steganography\"). In this paper we review the current state of the art in this field, and describe the key issues we have encountered in developing a practical video steganography system. A supporting video is also available online at http://www.youtube.com/watch?v=YhnlHmZolRM"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.4883","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":""},"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":"2026-05-18T02:42:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CQKi/4/gKwAz5BZkv9tE8xfXB+Gk0zDpOdQ+2VMkiSxY5ujSPz6m6OmwzZ2hdtyyKQgnXOzQ1IfwaMvlzYKVBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T19:07:34.984007Z"},"content_sha256":"93cec8774aef090fd6593ccc1d03fc83cf9bf53707dbec3e10c01cffed0ee231","schema_version":"1.0","event_id":"sha256:93cec8774aef090fd6593ccc1d03fc83cf9bf53707dbec3e10c01cffed0ee231"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GH4PDBEZO3OB74UEDA3YJVZZBI/bundle.json","state_url":"https://pith.science/pith/GH4PDBEZO3OB74UEDA3YJVZZBI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GH4PDBEZO3OB74UEDA3YJVZZBI/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":"2026-06-25T19:07:34Z","links":{"resolver":"https://pith.science/pith/GH4PDBEZO3OB74UEDA3YJVZZBI","bundle":"https://pith.science/pith/GH4PDBEZO3OB74UEDA3YJVZZBI/bundle.json","state":"https://pith.science/pith/GH4PDBEZO3OB74UEDA3YJVZZBI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GH4PDBEZO3OB74UEDA3YJVZZBI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:GH4PDBEZO3OB74UEDA3YJVZZBI","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":"692ec4fb18159995b86477639cc582238a6c303087b7beaa7a58f0c07e9fe03e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2014-09-17T07:33:46Z","title_canon_sha256":"a19d7cbe26076ecce09ebbb8c7a5a922f6d7dd9075fec9e5858dfef13ef1e4a5"},"schema_version":"1.0","source":{"id":"1409.4883","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.4883","created_at":"2026-05-18T02:42:38Z"},{"alias_kind":"arxiv_version","alias_value":"1409.4883v1","created_at":"2026-05-18T02:42:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.4883","created_at":"2026-05-18T02:42:38Z"},{"alias_kind":"pith_short_12","alias_value":"GH4PDBEZO3OB","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"GH4PDBEZO3OB74UE","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"GH4PDBEZ","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:93cec8774aef090fd6593ccc1d03fc83cf9bf53707dbec3e10c01cffed0ee231","target":"graph","created_at":"2026-05-18T02:42:38Z","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"},"paper":{"abstract_excerpt":"Although techniques for separate image and audio steganography are widely known, relatively little has been described concerning the hiding of information within video streams (\"video steganography\"). In this paper we review the current state of the art in this field, and describe the key issues we have encountered in developing a practical video steganography system. A supporting video is also available online at http://www.youtube.com/watch?v=YhnlHmZolRM","authors_text":"James Ridgway, Mike Stannett","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2014-09-17T07:33:46Z","title":"Developing a Video Steganography Toolkit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.4883","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":"sha256:5ea7678f876f2be8b0ee1d16f72b043495a38cb4247ea30408ba8f301e8a4a4c","target":"record","created_at":"2026-05-18T02:42:38Z","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":"692ec4fb18159995b86477639cc582238a6c303087b7beaa7a58f0c07e9fe03e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2014-09-17T07:33:46Z","title_canon_sha256":"a19d7cbe26076ecce09ebbb8c7a5a922f6d7dd9075fec9e5858dfef13ef1e4a5"},"schema_version":"1.0","source":{"id":"1409.4883","kind":"arxiv","version":1}},"canonical_sha256":"31f8f1849976dc1ff284183784d7390a2ba4a0ab8916b0d8ff9c725c154950ca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"31f8f1849976dc1ff284183784d7390a2ba4a0ab8916b0d8ff9c725c154950ca","first_computed_at":"2026-05-18T02:42:38.467889Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:42:38.467889Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OZqOAvQ1BbMnFa3TMb7UP2t75RohJuhprueFvRJH/yL+MktoLNmVF3D2v0f9TLwoIoxlz1UhUmBcd3TP/vBADw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:42:38.468399Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.4883","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5ea7678f876f2be8b0ee1d16f72b043495a38cb4247ea30408ba8f301e8a4a4c","sha256:93cec8774aef090fd6593ccc1d03fc83cf9bf53707dbec3e10c01cffed0ee231"],"state_sha256":"39e5e25c54a25359650da411dc13295ade7560eb5ba34bbe4488a733a4ca9b29"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4cvQNoER8/Ou3BUNUfb6yfKWG30SqOdUP8OAVbt1kmqS1qkokaVhzEhK0+8S37lqJT2FWEPh7B8GCVWnzLoFDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-25T19:07:34.985904Z","bundle_sha256":"a4c012a83579180cab734bdf72b7f3e63ced0e717970368d79033f2d0beb3094"}}