{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:7DSUH7VT5H4FJD4E6WYKE54AGC","short_pith_number":"pith:7DSUH7VT","canonical_record":{"source":{"id":"1708.05970","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2017-08-20T14:22:48Z","cross_cats_sorted":["cs.CR","cs.IT","math.IT"],"title_canon_sha256":"8b8c71f31d10be32bcd41ed47a8eb4756f78c7f0e168aa14b05601dad04eb245","abstract_canon_sha256":"81e09fba475e8f00470296f495719f3554b2171c34fa07474c5c1d75eb0206a2"},"schema_version":"1.0"},"canonical_sha256":"f8e543feb3e9f8548f84f5b0a2778030be91e018edb88c28836c7b964d981836","source":{"kind":"arxiv","id":"1708.05970","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.05970","created_at":"2026-05-18T00:37:43Z"},{"alias_kind":"arxiv_version","alias_value":"1708.05970v1","created_at":"2026-05-18T00:37:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.05970","created_at":"2026-05-18T00:37:43Z"},{"alias_kind":"pith_short_12","alias_value":"7DSUH7VT5H4F","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"7DSUH7VT5H4FJD4E","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"7DSUH7VT","created_at":"2026-05-18T12:31:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:7DSUH7VT5H4FJD4E6WYKE54AGC","target":"record","payload":{"canonical_record":{"source":{"id":"1708.05970","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2017-08-20T14:22:48Z","cross_cats_sorted":["cs.CR","cs.IT","math.IT"],"title_canon_sha256":"8b8c71f31d10be32bcd41ed47a8eb4756f78c7f0e168aa14b05601dad04eb245","abstract_canon_sha256":"81e09fba475e8f00470296f495719f3554b2171c34fa07474c5c1d75eb0206a2"},"schema_version":"1.0"},"canonical_sha256":"f8e543feb3e9f8548f84f5b0a2778030be91e018edb88c28836c7b964d981836","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:37:43.651059Z","signature_b64":"G3Tdur3GvPujt9Zv+MHle/MWAkbnFqYY9IugGl7H9r3sa7yxDERNSf1n4ZkZlRhPqHtvyhW2mjEF+BNP7xSrDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f8e543feb3e9f8548f84f5b0a2778030be91e018edb88c28836c7b964d981836","last_reissued_at":"2026-05-18T00:37:43.650391Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:37:43.650391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.05970","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":"2026-05-18T00:37:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"StTe8I0uM5ubehGFamlungoolu7v6WZn4lrhlel5k2Z50tEaFMr9rFkkStkzldnME227XOV/us01w9iz9V05BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T22:39:54.203975Z"},"content_sha256":"a604902d81cd07e1099860259c1df9a276f7b5465b9a5beb1fc5ebf3908a18e4","schema_version":"1.0","event_id":"sha256:a604902d81cd07e1099860259c1df9a276f7b5465b9a5beb1fc5ebf3908a18e4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:7DSUH7VT5H4FJD4E6WYKE54AGC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An improved watermarking scheme for Internet applications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CR","cs.IT","math.IT"],"primary_cat":"cs.MM","authors_text":"Christophe Guyeux, Jacques M. Bahi","submitted_at":"2017-08-20T14:22:48Z","abstract_excerpt":"In this paper, a data hiding scheme ready for Internet applications is proposed. An existing scheme based on chaotic iterations is improved, to respond to some major Internet security concerns, such as digital rights management, communication over hidden channels, and social search engines. By using Reed Solomon error correcting codes and wavelets domain, we show that this data hiding scheme can be improved to solve issues and requirements raised by these Internet fields."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.05970","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":"2026-05-18T00:37:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KSBaBSu+PIe/J8IAOAktbBJnnQ/aIiFOlojsoQZVA2pJVp+6F6xLNtbJtstZLJ/4GJReYMXdaLZp6iC4ePJMBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T22:39:54.204331Z"},"content_sha256":"9aedb92acd3dad4eba19ddf959550e30c9047d4f929924555c91762c2a7b695d","schema_version":"1.0","event_id":"sha256:9aedb92acd3dad4eba19ddf959550e30c9047d4f929924555c91762c2a7b695d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7DSUH7VT5H4FJD4E6WYKE54AGC/bundle.json","state_url":"https://pith.science/pith/7DSUH7VT5H4FJD4E6WYKE54AGC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7DSUH7VT5H4FJD4E6WYKE54AGC/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":"2026-06-24T22:39:54Z","links":{"resolver":"https://pith.science/pith/7DSUH7VT5H4FJD4E6WYKE54AGC","bundle":"https://pith.science/pith/7DSUH7VT5H4FJD4E6WYKE54AGC/bundle.json","state":"https://pith.science/pith/7DSUH7VT5H4FJD4E6WYKE54AGC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7DSUH7VT5H4FJD4E6WYKE54AGC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:7DSUH7VT5H4FJD4E6WYKE54AGC","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":"81e09fba475e8f00470296f495719f3554b2171c34fa07474c5c1d75eb0206a2","cross_cats_sorted":["cs.CR","cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2017-08-20T14:22:48Z","title_canon_sha256":"8b8c71f31d10be32bcd41ed47a8eb4756f78c7f0e168aa14b05601dad04eb245"},"schema_version":"1.0","source":{"id":"1708.05970","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.05970","created_at":"2026-05-18T00:37:43Z"},{"alias_kind":"arxiv_version","alias_value":"1708.05970v1","created_at":"2026-05-18T00:37:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.05970","created_at":"2026-05-18T00:37:43Z"},{"alias_kind":"pith_short_12","alias_value":"7DSUH7VT5H4F","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"7DSUH7VT5H4FJD4E","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"7DSUH7VT","created_at":"2026-05-18T12:31:03Z"}],"graph_snapshots":[{"event_id":"sha256:9aedb92acd3dad4eba19ddf959550e30c9047d4f929924555c91762c2a7b695d","target":"graph","created_at":"2026-05-18T00:37:43Z","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":"In this paper, a data hiding scheme ready for Internet applications is proposed. An existing scheme based on chaotic iterations is improved, to respond to some major Internet security concerns, such as digital rights management, communication over hidden channels, and social search engines. By using Reed Solomon error correcting codes and wavelets domain, we show that this data hiding scheme can be improved to solve issues and requirements raised by these Internet fields.","authors_text":"Christophe Guyeux, Jacques M. Bahi","cross_cats":["cs.CR","cs.IT","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2017-08-20T14:22:48Z","title":"An improved watermarking scheme for Internet applications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.05970","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:a604902d81cd07e1099860259c1df9a276f7b5465b9a5beb1fc5ebf3908a18e4","target":"record","created_at":"2026-05-18T00:37:43Z","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":"81e09fba475e8f00470296f495719f3554b2171c34fa07474c5c1d75eb0206a2","cross_cats_sorted":["cs.CR","cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2017-08-20T14:22:48Z","title_canon_sha256":"8b8c71f31d10be32bcd41ed47a8eb4756f78c7f0e168aa14b05601dad04eb245"},"schema_version":"1.0","source":{"id":"1708.05970","kind":"arxiv","version":1}},"canonical_sha256":"f8e543feb3e9f8548f84f5b0a2778030be91e018edb88c28836c7b964d981836","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f8e543feb3e9f8548f84f5b0a2778030be91e018edb88c28836c7b964d981836","first_computed_at":"2026-05-18T00:37:43.650391Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:37:43.650391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"G3Tdur3GvPujt9Zv+MHle/MWAkbnFqYY9IugGl7H9r3sa7yxDERNSf1n4ZkZlRhPqHtvyhW2mjEF+BNP7xSrDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:37:43.651059Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.05970","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a604902d81cd07e1099860259c1df9a276f7b5465b9a5beb1fc5ebf3908a18e4","sha256:9aedb92acd3dad4eba19ddf959550e30c9047d4f929924555c91762c2a7b695d"],"state_sha256":"0602129fba1914da4a0eb28b1a4b0af88bab0655574e7ce5c5fc0984711eafaa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W9QPmIpjFiL+TqP1dXaQ2oMpVBAM57TNSJfNExs8+9rUdgeiDsllnG4mD5TxMPNH/7/cdBuqYm/DKCrW5/UuAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T22:39:54.206210Z","bundle_sha256":"b5f815647829cad4231c623dc3c7e8c68f68934eec730c6998b40c980115f2aa"}}