{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:KIK2VJ7FO33XXWHWQOAMX43DFZ","short_pith_number":"pith:KIK2VJ7F","canonical_record":{"source":{"id":"1211.2155","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2012-11-09T15:13:51Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"ea8515cb2b90af1516090160fe76795ccf96dc0ff88543868c29b7763ad1e611","abstract_canon_sha256":"fbf227a2a2299cdb181a9c6882a39fde4b8c40140586651cd9765343d533fc87"},"schema_version":"1.0"},"canonical_sha256":"5215aaa7e576f77bd8f68380cbf3632e633b119470309cb2e7e9021943bceb3a","source":{"kind":"arxiv","id":"1211.2155","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.2155","created_at":"2026-05-18T03:41:11Z"},{"alias_kind":"arxiv_version","alias_value":"1211.2155v1","created_at":"2026-05-18T03:41:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.2155","created_at":"2026-05-18T03:41:11Z"},{"alias_kind":"pith_short_12","alias_value":"KIK2VJ7FO33X","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"KIK2VJ7FO33XXWHW","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"KIK2VJ7F","created_at":"2026-05-18T12:27:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:KIK2VJ7FO33XXWHWQOAMX43DFZ","target":"record","payload":{"canonical_record":{"source":{"id":"1211.2155","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2012-11-09T15:13:51Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"ea8515cb2b90af1516090160fe76795ccf96dc0ff88543868c29b7763ad1e611","abstract_canon_sha256":"fbf227a2a2299cdb181a9c6882a39fde4b8c40140586651cd9765343d533fc87"},"schema_version":"1.0"},"canonical_sha256":"5215aaa7e576f77bd8f68380cbf3632e633b119470309cb2e7e9021943bceb3a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:41:11.572715Z","signature_b64":"QV/++yKgtbNudjM7hjSuF2xHA3Cbtqlm4r4Z6gKfrnmSF1j3d+PxwaNJGkFHqwQ5p5AUmMJ4XfxGrJuEbanqAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5215aaa7e576f77bd8f68380cbf3632e633b119470309cb2e7e9021943bceb3a","last_reissued_at":"2026-05-18T03:41:11.572163Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:41:11.572163Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1211.2155","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":"2026-05-18T03:41:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rbwgQbFPHtoM1XbKm4s8Z2u5SWHQGJqznrijTZDzS/aqrlLchDN0RMTG18mEle7tRsprBo1OVmiDlJu+CEjQCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T01:00:58.878793Z"},"content_sha256":"aad55ca055c9f3caccedc4de06acfb91e3553f0580bb3ed5ec20b3d581f532a5","schema_version":"1.0","event_id":"sha256:aad55ca055c9f3caccedc4de06acfb91e3553f0580bb3ed5ec20b3d581f532a5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:KIK2VJ7FO33XXWHWQOAMX43DFZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improved Modeling of the Correlation Between Continuous-Valued Sources in LDPC-Based DSC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Fabrice Labeau, Mojtaba Vaezi","submitted_at":"2012-11-09T15:13:51Z","abstract_excerpt":"Accurate modeling of the correlation between the sources plays a crucial role in the efficiency of distributed source coding (DSC) systems. This correlation is commonly modeled in the binary domain by using a single binary symmetric channel (BSC), both for binary and continuous-valued sources. We show that \"one\" BSC cannot accurately capture the correlation between continuous-valued sources; a more accurate model requires \"multiple\" BSCs, as many as the number of bits used to represent each sample. We incorporate this new model into the DSC system that uses low-density parity-check (LDPC) code"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.2155","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":"2026-05-18T03:41:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yUc6F7uNt3piZFpLyt64yUjZMmtbz287bkn5WVr20p29YVQS3P2qMqgzYVV4YmijeSx78mo1F5BviNBiCo32AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T01:00:58.879503Z"},"content_sha256":"1ed470ab96ba27afd98606bba0f421698e5dc03c84d58a5f325b08d6f0f18ba4","schema_version":"1.0","event_id":"sha256:1ed470ab96ba27afd98606bba0f421698e5dc03c84d58a5f325b08d6f0f18ba4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KIK2VJ7FO33XXWHWQOAMX43DFZ/bundle.json","state_url":"https://pith.science/pith/KIK2VJ7FO33XXWHWQOAMX43DFZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KIK2VJ7FO33XXWHWQOAMX43DFZ/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":"2026-06-10T01:00:58Z","links":{"resolver":"https://pith.science/pith/KIK2VJ7FO33XXWHWQOAMX43DFZ","bundle":"https://pith.science/pith/KIK2VJ7FO33XXWHWQOAMX43DFZ/bundle.json","state":"https://pith.science/pith/KIK2VJ7FO33XXWHWQOAMX43DFZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KIK2VJ7FO33XXWHWQOAMX43DFZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:KIK2VJ7FO33XXWHWQOAMX43DFZ","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":"fbf227a2a2299cdb181a9c6882a39fde4b8c40140586651cd9765343d533fc87","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2012-11-09T15:13:51Z","title_canon_sha256":"ea8515cb2b90af1516090160fe76795ccf96dc0ff88543868c29b7763ad1e611"},"schema_version":"1.0","source":{"id":"1211.2155","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.2155","created_at":"2026-05-18T03:41:11Z"},{"alias_kind":"arxiv_version","alias_value":"1211.2155v1","created_at":"2026-05-18T03:41:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.2155","created_at":"2026-05-18T03:41:11Z"},{"alias_kind":"pith_short_12","alias_value":"KIK2VJ7FO33X","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"KIK2VJ7FO33XXWHW","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"KIK2VJ7F","created_at":"2026-05-18T12:27:11Z"}],"graph_snapshots":[{"event_id":"sha256:1ed470ab96ba27afd98606bba0f421698e5dc03c84d58a5f325b08d6f0f18ba4","target":"graph","created_at":"2026-05-18T03:41:11Z","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":"Accurate modeling of the correlation between the sources plays a crucial role in the efficiency of distributed source coding (DSC) systems. This correlation is commonly modeled in the binary domain by using a single binary symmetric channel (BSC), both for binary and continuous-valued sources. We show that \"one\" BSC cannot accurately capture the correlation between continuous-valued sources; a more accurate model requires \"multiple\" BSCs, as many as the number of bits used to represent each sample. We incorporate this new model into the DSC system that uses low-density parity-check (LDPC) code","authors_text":"Fabrice Labeau, Mojtaba Vaezi","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2012-11-09T15:13:51Z","title":"Improved Modeling of the Correlation Between Continuous-Valued Sources in LDPC-Based DSC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.2155","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:aad55ca055c9f3caccedc4de06acfb91e3553f0580bb3ed5ec20b3d581f532a5","target":"record","created_at":"2026-05-18T03:41:11Z","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":"fbf227a2a2299cdb181a9c6882a39fde4b8c40140586651cd9765343d533fc87","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2012-11-09T15:13:51Z","title_canon_sha256":"ea8515cb2b90af1516090160fe76795ccf96dc0ff88543868c29b7763ad1e611"},"schema_version":"1.0","source":{"id":"1211.2155","kind":"arxiv","version":1}},"canonical_sha256":"5215aaa7e576f77bd8f68380cbf3632e633b119470309cb2e7e9021943bceb3a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5215aaa7e576f77bd8f68380cbf3632e633b119470309cb2e7e9021943bceb3a","first_computed_at":"2026-05-18T03:41:11.572163Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:41:11.572163Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QV/++yKgtbNudjM7hjSuF2xHA3Cbtqlm4r4Z6gKfrnmSF1j3d+PxwaNJGkFHqwQ5p5AUmMJ4XfxGrJuEbanqAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:41:11.572715Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.2155","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aad55ca055c9f3caccedc4de06acfb91e3553f0580bb3ed5ec20b3d581f532a5","sha256:1ed470ab96ba27afd98606bba0f421698e5dc03c84d58a5f325b08d6f0f18ba4"],"state_sha256":"5ef76d9f1d8b18b4d0b5480536e94b2936eb2a8d69181796a1f43d340c72c4b5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AE1a8ezFCBDWeny/9tXqrCE4tPVTJ79RnTDFaUcNyEgYWcmqU5gv6z1lIQHXfRqDTk29SFbuQaWK/pD+ryycDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T01:00:58.883526Z","bundle_sha256":"85aa87ce4c7aa5ac75f62387a6528cc41b710e94a15185fa6560b5ca756033da"}}