{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:EKOSHRWO35HL2SXGOZGFXZRQ7W","short_pith_number":"pith:EKOSHRWO","canonical_record":{"source":{"id":"1907.01078","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-07-01T21:16:51Z","cross_cats_sorted":["math.IT","math.SP"],"title_canon_sha256":"39e1b990ee9eee55d640f04f4bc197474823db81547d3822d09e55539c20e94b","abstract_canon_sha256":"164129a38d05ee1530f5e7f922fd5be7ef5c75b4fc24d86830adfa8e9a2349ab"},"schema_version":"1.0"},"canonical_sha256":"229d23c6cedf4ebd4ae6764c5be630fd9d60f73706bfc20fb002e6d3721c4607","source":{"kind":"arxiv","id":"1907.01078","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.01078","created_at":"2026-05-17T23:41:41Z"},{"alias_kind":"arxiv_version","alias_value":"1907.01078v1","created_at":"2026-05-17T23:41:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.01078","created_at":"2026-05-17T23:41:41Z"},{"alias_kind":"pith_short_12","alias_value":"EKOSHRWO35HL","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"EKOSHRWO35HL2SXG","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"EKOSHRWO","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:EKOSHRWO35HL2SXGOZGFXZRQ7W","target":"record","payload":{"canonical_record":{"source":{"id":"1907.01078","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-07-01T21:16:51Z","cross_cats_sorted":["math.IT","math.SP"],"title_canon_sha256":"39e1b990ee9eee55d640f04f4bc197474823db81547d3822d09e55539c20e94b","abstract_canon_sha256":"164129a38d05ee1530f5e7f922fd5be7ef5c75b4fc24d86830adfa8e9a2349ab"},"schema_version":"1.0"},"canonical_sha256":"229d23c6cedf4ebd4ae6764c5be630fd9d60f73706bfc20fb002e6d3721c4607","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:41.298598Z","signature_b64":"k6mDH+oXGrCHeIHpga35O8gNUHp4VsLXRMHj49K2z4EYc6zX3loYHDuVD0m/dNp2IiafEBjIeflQn2VYz77+CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"229d23c6cedf4ebd4ae6764c5be630fd9d60f73706bfc20fb002e6d3721c4607","last_reissued_at":"2026-05-17T23:41:41.297927Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:41.297927Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.01078","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":"2026-05-17T23:41:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QvTScVOmTxMfNFDAlUVlXJv/rnEe91OmHkdH18EhGTmfiGygIIpMHoQeG46zMk+761YBe71JVdNBanryfX0aAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T17:50:46.121431Z"},"content_sha256":"f773d62e3eedd3c43721b338f95ba80fc7b969de57d8cbfcccd7fe4f8a46e260","schema_version":"1.0","event_id":"sha256:f773d62e3eedd3c43721b338f95ba80fc7b969de57d8cbfcccd7fe4f8a46e260"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:EKOSHRWO35HL2SXGOZGFXZRQ7W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantization in Compressive Sensing: A Signal Processing Approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT","math.SP"],"primary_cat":"cs.IT","authors_text":"Cornel Ioana, Isidora Stankovic, Ljubisa Stankovic, Milos Brajovic, Milos Dakovic","submitted_at":"2019-07-01T21:16:51Z","abstract_excerpt":"Influence of the finite-length registers and quantization effects on the reconstruction of sparse and approximately sparse signals is analyzed in this paper. For the nonquantized measurements, the compressive sensing (CS) framework provides highly accurate reconstruction algorithms that produce negligible errors when the reconstruction conditions are met. However, hardware implementations of signal processing algorithms involve the finite-length registers and quantization of the measurements. An analysis of the effects related to the measurements quantization with an arbitrary number of bits i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.01078","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":"2026-05-17T23:41:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jnJxPJRWfyL8VtuWaWZzlJGXSE9MHh0J0XEW+eRjvTQ/nm801BRlnydHRzwJp/bw2w7zPgwgREFEsQjKjPuKBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T17:50:46.122176Z"},"content_sha256":"ce538ab8ac3df863a33752f4ab8317e01e35fd88a574ffc75d6a4a4a8ac2adf9","schema_version":"1.0","event_id":"sha256:ce538ab8ac3df863a33752f4ab8317e01e35fd88a574ffc75d6a4a4a8ac2adf9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EKOSHRWO35HL2SXGOZGFXZRQ7W/bundle.json","state_url":"https://pith.science/pith/EKOSHRWO35HL2SXGOZGFXZRQ7W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EKOSHRWO35HL2SXGOZGFXZRQ7W/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":"2026-06-05T17:50:46Z","links":{"resolver":"https://pith.science/pith/EKOSHRWO35HL2SXGOZGFXZRQ7W","bundle":"https://pith.science/pith/EKOSHRWO35HL2SXGOZGFXZRQ7W/bundle.json","state":"https://pith.science/pith/EKOSHRWO35HL2SXGOZGFXZRQ7W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EKOSHRWO35HL2SXGOZGFXZRQ7W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:EKOSHRWO35HL2SXGOZGFXZRQ7W","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":"164129a38d05ee1530f5e7f922fd5be7ef5c75b4fc24d86830adfa8e9a2349ab","cross_cats_sorted":["math.IT","math.SP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-07-01T21:16:51Z","title_canon_sha256":"39e1b990ee9eee55d640f04f4bc197474823db81547d3822d09e55539c20e94b"},"schema_version":"1.0","source":{"id":"1907.01078","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.01078","created_at":"2026-05-17T23:41:41Z"},{"alias_kind":"arxiv_version","alias_value":"1907.01078v1","created_at":"2026-05-17T23:41:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.01078","created_at":"2026-05-17T23:41:41Z"},{"alias_kind":"pith_short_12","alias_value":"EKOSHRWO35HL","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"EKOSHRWO35HL2SXG","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"EKOSHRWO","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:ce538ab8ac3df863a33752f4ab8317e01e35fd88a574ffc75d6a4a4a8ac2adf9","target":"graph","created_at":"2026-05-17T23:41:41Z","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":"Influence of the finite-length registers and quantization effects on the reconstruction of sparse and approximately sparse signals is analyzed in this paper. For the nonquantized measurements, the compressive sensing (CS) framework provides highly accurate reconstruction algorithms that produce negligible errors when the reconstruction conditions are met. However, hardware implementations of signal processing algorithms involve the finite-length registers and quantization of the measurements. An analysis of the effects related to the measurements quantization with an arbitrary number of bits i","authors_text":"Cornel Ioana, Isidora Stankovic, Ljubisa Stankovic, Milos Brajovic, Milos Dakovic","cross_cats":["math.IT","math.SP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-07-01T21:16:51Z","title":"Quantization in Compressive Sensing: A Signal Processing Approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.01078","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:f773d62e3eedd3c43721b338f95ba80fc7b969de57d8cbfcccd7fe4f8a46e260","target":"record","created_at":"2026-05-17T23:41:41Z","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":"164129a38d05ee1530f5e7f922fd5be7ef5c75b4fc24d86830adfa8e9a2349ab","cross_cats_sorted":["math.IT","math.SP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-07-01T21:16:51Z","title_canon_sha256":"39e1b990ee9eee55d640f04f4bc197474823db81547d3822d09e55539c20e94b"},"schema_version":"1.0","source":{"id":"1907.01078","kind":"arxiv","version":1}},"canonical_sha256":"229d23c6cedf4ebd4ae6764c5be630fd9d60f73706bfc20fb002e6d3721c4607","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"229d23c6cedf4ebd4ae6764c5be630fd9d60f73706bfc20fb002e6d3721c4607","first_computed_at":"2026-05-17T23:41:41.297927Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:41.297927Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"k6mDH+oXGrCHeIHpga35O8gNUHp4VsLXRMHj49K2z4EYc6zX3loYHDuVD0m/dNp2IiafEBjIeflQn2VYz77+CA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:41.298598Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.01078","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f773d62e3eedd3c43721b338f95ba80fc7b969de57d8cbfcccd7fe4f8a46e260","sha256:ce538ab8ac3df863a33752f4ab8317e01e35fd88a574ffc75d6a4a4a8ac2adf9"],"state_sha256":"695445e4fe55ce861fc13e4f5c7fbf88661135c4e66717a10896012fa1420ada"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+Zyx1IxNYQg9M82HlWdemOsEvHb2+A4QkQmuS2FbvdPF+eovaH+H3N81Ct1DigWYPrmpvld8Y5zd1Izf3A3UBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T17:50:46.127223Z","bundle_sha256":"32065f5adafb60a96aed2dc33c7b2d1cd8220eda33e00103591cd9d07d1dc1d0"}}