{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:G5FX47PXMFAZO3DMRHXSWQPEFV","short_pith_number":"pith:G5FX47PX","canonical_record":{"source":{"id":"2505.15869","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-05-21T12:58:57Z","cross_cats_sorted":[],"title_canon_sha256":"a75434638e28517afe37133e8d8406fcd6cae4cb4580c1855c9866ded9d4d92b","abstract_canon_sha256":"6ebb6791b410f570237862367a106acbb24c9d52a3a47d75c631fe63960ca608"},"schema_version":"1.0"},"canonical_sha256":"374b7e7df76141976c6c89ef2b41e42d7243f75a4dc411d93bf3c338cd990be1","source":{"kind":"arxiv","id":"2505.15869","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.15869","created_at":"2026-05-20T00:05:28Z"},{"alias_kind":"arxiv_version","alias_value":"2505.15869v2","created_at":"2026-05-20T00:05:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.15869","created_at":"2026-05-20T00:05:28Z"},{"alias_kind":"pith_short_12","alias_value":"G5FX47PXMFAZ","created_at":"2026-05-20T00:05:28Z"},{"alias_kind":"pith_short_16","alias_value":"G5FX47PXMFAZO3DM","created_at":"2026-05-20T00:05:28Z"},{"alias_kind":"pith_short_8","alias_value":"G5FX47PX","created_at":"2026-05-20T00:05:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:G5FX47PXMFAZO3DMRHXSWQPEFV","target":"record","payload":{"canonical_record":{"source":{"id":"2505.15869","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-05-21T12:58:57Z","cross_cats_sorted":[],"title_canon_sha256":"a75434638e28517afe37133e8d8406fcd6cae4cb4580c1855c9866ded9d4d92b","abstract_canon_sha256":"6ebb6791b410f570237862367a106acbb24c9d52a3a47d75c631fe63960ca608"},"schema_version":"1.0"},"canonical_sha256":"374b7e7df76141976c6c89ef2b41e42d7243f75a4dc411d93bf3c338cd990be1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T00:05:28.910644Z","signature_b64":"mxalXiA1JdGArQas+Mz80Ntb07wA6RaRtiOaa0cQttaRFrwrk4C+CNoz5Vem0gGz00/Bl4Er1C+LHFgfiFEUAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"374b7e7df76141976c6c89ef2b41e42d7243f75a4dc411d93bf3c338cd990be1","last_reissued_at":"2026-05-20T00:05:28.909748Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T00:05:28.909748Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.15869","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-20T00:05:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DjhNczoI5ZIUaoMyiNGeVc+WOuBrHvNrJqf6TtvJmdQIRRcHNKbKSPlYVgzOl3kEhsVkpoFMpD5++m7mqFD7BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T00:53:20.371642Z"},"content_sha256":"66f036b93b7e609c0b661768f4a15ff61423a00c837ef781090f3a96f1c59f84","schema_version":"1.0","event_id":"sha256:66f036b93b7e609c0b661768f4a15ff61423a00c837ef781090f3a96f1c59f84"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:G5FX47PXMFAZO3DMRHXSWQPEFV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum steganographic protocols using degenerate and entanglement-assisted quantum codes","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Nihar Ranjan Dash, R. Srikanth, Sanjoy Dutta, Subhashish Banerjee","submitted_at":"2025-05-21T12:58:57Z","abstract_excerpt":"Steganography is the art of concealing secret information by embedding it in an apparently innocent-looking message. Quantum steganography applies the principles of quantum mechanics to traditional steganography and, compared to the latter, offers significant advantages, including heightened security, improved concealment, and increased data-hiding capacity. Traditionally, quantum steganography disguises the covert communication as channel noise, which is corrected using preshared classical randomness. This method requires the steganalytic eavesdropper Eve to overestimate the level of channel "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.15869","kind":"arxiv","version":2},"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/2505.15869/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":"2026-05-20T00:05:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lKVj8253BMQjT5xwoZ8MqsgmmJ8ZI0jdBfhVfAJh+5gNQShRmIR2Xiku5p/duRqEqFFeeycYaPbqQMGP1UuxDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T00:53:20.372254Z"},"content_sha256":"698cb065a995ea5d661e03ecf195cf87ea300e6217b7ee8bdfbf04fa3f616176","schema_version":"1.0","event_id":"sha256:698cb065a995ea5d661e03ecf195cf87ea300e6217b7ee8bdfbf04fa3f616176"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G5FX47PXMFAZO3DMRHXSWQPEFV/bundle.json","state_url":"https://pith.science/pith/G5FX47PXMFAZO3DMRHXSWQPEFV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G5FX47PXMFAZO3DMRHXSWQPEFV/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":"2026-08-07T00:53:20Z","links":{"resolver":"https://pith.science/pith/G5FX47PXMFAZO3DMRHXSWQPEFV","bundle":"https://pith.science/pith/G5FX47PXMFAZO3DMRHXSWQPEFV/bundle.json","state":"https://pith.science/pith/G5FX47PXMFAZO3DMRHXSWQPEFV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G5FX47PXMFAZO3DMRHXSWQPEFV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:G5FX47PXMFAZO3DMRHXSWQPEFV","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":"6ebb6791b410f570237862367a106acbb24c9d52a3a47d75c631fe63960ca608","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-05-21T12:58:57Z","title_canon_sha256":"a75434638e28517afe37133e8d8406fcd6cae4cb4580c1855c9866ded9d4d92b"},"schema_version":"1.0","source":{"id":"2505.15869","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.15869","created_at":"2026-05-20T00:05:28Z"},{"alias_kind":"arxiv_version","alias_value":"2505.15869v2","created_at":"2026-05-20T00:05:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.15869","created_at":"2026-05-20T00:05:28Z"},{"alias_kind":"pith_short_12","alias_value":"G5FX47PXMFAZ","created_at":"2026-05-20T00:05:28Z"},{"alias_kind":"pith_short_16","alias_value":"G5FX47PXMFAZO3DM","created_at":"2026-05-20T00:05:28Z"},{"alias_kind":"pith_short_8","alias_value":"G5FX47PX","created_at":"2026-05-20T00:05:28Z"}],"graph_snapshots":[{"event_id":"sha256:698cb065a995ea5d661e03ecf195cf87ea300e6217b7ee8bdfbf04fa3f616176","target":"graph","created_at":"2026-05-20T00:05:28Z","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/2505.15869/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Steganography is the art of concealing secret information by embedding it in an apparently innocent-looking message. Quantum steganography applies the principles of quantum mechanics to traditional steganography and, compared to the latter, offers significant advantages, including heightened security, improved concealment, and increased data-hiding capacity. Traditionally, quantum steganography disguises the covert communication as channel noise, which is corrected using preshared classical randomness. This method requires the steganalytic eavesdropper Eve to overestimate the level of channel ","authors_text":"Nihar Ranjan Dash, R. Srikanth, Sanjoy Dutta, Subhashish Banerjee","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-05-21T12:58:57Z","title":"Quantum steganographic protocols using degenerate and entanglement-assisted quantum codes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.15869","kind":"arxiv","version":2},"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":"sha256:66f036b93b7e609c0b661768f4a15ff61423a00c837ef781090f3a96f1c59f84","target":"record","created_at":"2026-05-20T00:05:28Z","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":"6ebb6791b410f570237862367a106acbb24c9d52a3a47d75c631fe63960ca608","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-05-21T12:58:57Z","title_canon_sha256":"a75434638e28517afe37133e8d8406fcd6cae4cb4580c1855c9866ded9d4d92b"},"schema_version":"1.0","source":{"id":"2505.15869","kind":"arxiv","version":2}},"canonical_sha256":"374b7e7df76141976c6c89ef2b41e42d7243f75a4dc411d93bf3c338cd990be1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"374b7e7df76141976c6c89ef2b41e42d7243f75a4dc411d93bf3c338cd990be1","first_computed_at":"2026-05-20T00:05:28.909748Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:05:28.909748Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mxalXiA1JdGArQas+Mz80Ntb07wA6RaRtiOaa0cQttaRFrwrk4C+CNoz5Vem0gGz00/Bl4Er1C+LHFgfiFEUAA==","signature_status":"signed_v1","signed_at":"2026-05-20T00:05:28.910644Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.15869","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66f036b93b7e609c0b661768f4a15ff61423a00c837ef781090f3a96f1c59f84","sha256:698cb065a995ea5d661e03ecf195cf87ea300e6217b7ee8bdfbf04fa3f616176"],"state_sha256":"bd05ac758d8091dddadae45f5eaf5c11bc75caaf11292dc088e824032be52c4a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"npbqCtpEhVa2vBsWgf+7Xz1CMTkedlzfrm8m+NdEw/nan0arvxi0Kv5ZqKWuN9pfXKT4kdGeZ5QFxS9c890oCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T00:53:20.454162Z","bundle_sha256":"b1c8140e18fb20e5f9dc4dab1cf252057cccaa1645b296c5f362db39ad7c1f4c"}}