{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:AIQZCO6GPOEH5CTPBOPFI5YY34","short_pith_number":"pith:AIQZCO6G","canonical_record":{"source":{"id":"1307.1397","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-07-04T16:28:49Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"c2bcdff7a7d9019c5115c0fdd4912ce0b362f0ec92acf0b21d77e6edc3138ce0","abstract_canon_sha256":"1aa2d797a8aed9bbf0537ef7862dab87ada8920030552f567080df248ba8c472"},"schema_version":"1.0"},"canonical_sha256":"0221913bc67b887e8a6f0b9e547718df0c1419173dc54d0482c88df2c2f40f21","source":{"kind":"arxiv","id":"1307.1397","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.1397","created_at":"2026-05-18T03:19:13Z"},{"alias_kind":"arxiv_version","alias_value":"1307.1397v1","created_at":"2026-05-18T03:19:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.1397","created_at":"2026-05-18T03:19:13Z"},{"alias_kind":"pith_short_12","alias_value":"AIQZCO6GPOEH","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"AIQZCO6GPOEH5CTP","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"AIQZCO6G","created_at":"2026-05-18T12:27:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:AIQZCO6GPOEH5CTPBOPFI5YY34","target":"record","payload":{"canonical_record":{"source":{"id":"1307.1397","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-07-04T16:28:49Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"c2bcdff7a7d9019c5115c0fdd4912ce0b362f0ec92acf0b21d77e6edc3138ce0","abstract_canon_sha256":"1aa2d797a8aed9bbf0537ef7862dab87ada8920030552f567080df248ba8c472"},"schema_version":"1.0"},"canonical_sha256":"0221913bc67b887e8a6f0b9e547718df0c1419173dc54d0482c88df2c2f40f21","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:19:13.792580Z","signature_b64":"BS0N16jmz6oV1oPSXNk2xQI+uJcrKWcQgqp8bUNCf1y43HDpb0Ka0l4hFmRZQ4iAYp4ggYXMJFxT6TRmpF2jBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0221913bc67b887e8a6f0b9e547718df0c1419173dc54d0482c88df2c2f40f21","last_reissued_at":"2026-05-18T03:19:13.791922Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:19:13.791922Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.1397","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":"2026-05-18T03:19:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KGorB76gmlzSq6INAXpztfSQBLGotYTYUwEtMkfRJ5lxpyObI+ASQ+rRXF5SxrCw5wQETfn8m0LnxNMheejhDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T09:24:54.860920Z"},"content_sha256":"2367b0de9ce7f2cfa7b56cfe8a660304f69190b902ae00a9989c233c52ecebfe","schema_version":"1.0","event_id":"sha256:2367b0de9ce7f2cfa7b56cfe8a660304f69190b902ae00a9989c233c52ecebfe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:AIQZCO6GPOEH5CTPBOPFI5YY34","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Secure Source Coding with a Public Helper","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Kittipong Kittichokechai, Mikael Skoglund, Tobias J. Oechtering, Tsachy Weissman, Yeow-Khiang Chia","submitted_at":"2013-07-04T16:28:49Z","abstract_excerpt":"We consider secure multi-terminal source coding problems in the presence of a public helper. Two main scenarios are studied: 1) source coding with a helper where the coded side information from the helper is eavesdropped by an external eavesdropper; 2) triangular source coding with a helper where the helper is considered as a public terminal. We are interested in how the helper can support the source transmission subject to a constraint on the amount of information leaked due to its public nature. We characterize the tradeoff between transmission rate, incurred distortion, and information leak"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.1397","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":"2026-05-18T03:19:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pi7HnhFjnZe2LcRNNwiiimLiXGGWf1rgEmURaaHsczDKbNyMAzIVjbmWrLw4s8v/J1iDVyEd3Rp87mbw1JqeBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T09:24:54.861265Z"},"content_sha256":"4f56ff9e880ff7b1caf9ce02b5d8f5472480ee46985ba1455b7132f51ba7ea58","schema_version":"1.0","event_id":"sha256:4f56ff9e880ff7b1caf9ce02b5d8f5472480ee46985ba1455b7132f51ba7ea58"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AIQZCO6GPOEH5CTPBOPFI5YY34/bundle.json","state_url":"https://pith.science/pith/AIQZCO6GPOEH5CTPBOPFI5YY34/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AIQZCO6GPOEH5CTPBOPFI5YY34/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":"2026-05-28T09:24:54Z","links":{"resolver":"https://pith.science/pith/AIQZCO6GPOEH5CTPBOPFI5YY34","bundle":"https://pith.science/pith/AIQZCO6GPOEH5CTPBOPFI5YY34/bundle.json","state":"https://pith.science/pith/AIQZCO6GPOEH5CTPBOPFI5YY34/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AIQZCO6GPOEH5CTPBOPFI5YY34/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:AIQZCO6GPOEH5CTPBOPFI5YY34","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":"1aa2d797a8aed9bbf0537ef7862dab87ada8920030552f567080df248ba8c472","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-07-04T16:28:49Z","title_canon_sha256":"c2bcdff7a7d9019c5115c0fdd4912ce0b362f0ec92acf0b21d77e6edc3138ce0"},"schema_version":"1.0","source":{"id":"1307.1397","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.1397","created_at":"2026-05-18T03:19:13Z"},{"alias_kind":"arxiv_version","alias_value":"1307.1397v1","created_at":"2026-05-18T03:19:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.1397","created_at":"2026-05-18T03:19:13Z"},{"alias_kind":"pith_short_12","alias_value":"AIQZCO6GPOEH","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"AIQZCO6GPOEH5CTP","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"AIQZCO6G","created_at":"2026-05-18T12:27:38Z"}],"graph_snapshots":[{"event_id":"sha256:4f56ff9e880ff7b1caf9ce02b5d8f5472480ee46985ba1455b7132f51ba7ea58","target":"graph","created_at":"2026-05-18T03:19:13Z","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":"We consider secure multi-terminal source coding problems in the presence of a public helper. Two main scenarios are studied: 1) source coding with a helper where the coded side information from the helper is eavesdropped by an external eavesdropper; 2) triangular source coding with a helper where the helper is considered as a public terminal. We are interested in how the helper can support the source transmission subject to a constraint on the amount of information leaked due to its public nature. We characterize the tradeoff between transmission rate, incurred distortion, and information leak","authors_text":"Kittipong Kittichokechai, Mikael Skoglund, Tobias J. Oechtering, Tsachy Weissman, Yeow-Khiang Chia","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-07-04T16:28:49Z","title":"Secure Source Coding with a Public Helper"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.1397","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":"sha256:2367b0de9ce7f2cfa7b56cfe8a660304f69190b902ae00a9989c233c52ecebfe","target":"record","created_at":"2026-05-18T03:19:13Z","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":"1aa2d797a8aed9bbf0537ef7862dab87ada8920030552f567080df248ba8c472","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-07-04T16:28:49Z","title_canon_sha256":"c2bcdff7a7d9019c5115c0fdd4912ce0b362f0ec92acf0b21d77e6edc3138ce0"},"schema_version":"1.0","source":{"id":"1307.1397","kind":"arxiv","version":1}},"canonical_sha256":"0221913bc67b887e8a6f0b9e547718df0c1419173dc54d0482c88df2c2f40f21","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0221913bc67b887e8a6f0b9e547718df0c1419173dc54d0482c88df2c2f40f21","first_computed_at":"2026-05-18T03:19:13.791922Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:19:13.791922Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BS0N16jmz6oV1oPSXNk2xQI+uJcrKWcQgqp8bUNCf1y43HDpb0Ka0l4hFmRZQ4iAYp4ggYXMJFxT6TRmpF2jBA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:19:13.792580Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.1397","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2367b0de9ce7f2cfa7b56cfe8a660304f69190b902ae00a9989c233c52ecebfe","sha256:4f56ff9e880ff7b1caf9ce02b5d8f5472480ee46985ba1455b7132f51ba7ea58"],"state_sha256":"99403654b5575ad21316c26c56d9fba639dcfc3bfe66ba8ac4e589e2aa31f767"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sIAowWRuse1zLUYiXZIz6eJRfU6CSUE8I6TM7F4kUSPqlciar33iZehBqI7BBm/hstD5F5PvTFPPyiBJhrc1Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T09:24:54.863363Z","bundle_sha256":"be056a4eaa5207b89ab6bcc2612228a3e7a5ddde9a1dee15e97169c3bb10e62c"}}