{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:IA33SIPDXI2DQJOMRXSLD446B7","short_pith_number":"pith:IA33SIPD","canonical_record":{"source":{"id":"2304.03600","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2023-04-07T11:51:32Z","cross_cats_sorted":[],"title_canon_sha256":"5976978fac98ef65b98c0afb0db928235b317f112b2cefa8cc6def051e5c175a","abstract_canon_sha256":"5b26a46d440a87ed695207fef96d1655c2d80f0e1a15138fb5ce7e6d7b4e716e"},"schema_version":"1.0"},"canonical_sha256":"4037b921e3ba343825cc8de4b1f39e0fd415ee74fa364d93393e0800ad60c1a1","source":{"kind":"arxiv","id":"2304.03600","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.03600","created_at":"2026-07-05T05:59:24Z"},{"alias_kind":"arxiv_version","alias_value":"2304.03600v2","created_at":"2026-07-05T05:59:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.03600","created_at":"2026-07-05T05:59:24Z"},{"alias_kind":"pith_short_12","alias_value":"IA33SIPDXI2D","created_at":"2026-07-05T05:59:24Z"},{"alias_kind":"pith_short_16","alias_value":"IA33SIPDXI2DQJOM","created_at":"2026-07-05T05:59:24Z"},{"alias_kind":"pith_short_8","alias_value":"IA33SIPD","created_at":"2026-07-05T05:59:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:IA33SIPDXI2DQJOMRXSLD446B7","target":"record","payload":{"canonical_record":{"source":{"id":"2304.03600","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2023-04-07T11:51:32Z","cross_cats_sorted":[],"title_canon_sha256":"5976978fac98ef65b98c0afb0db928235b317f112b2cefa8cc6def051e5c175a","abstract_canon_sha256":"5b26a46d440a87ed695207fef96d1655c2d80f0e1a15138fb5ce7e6d7b4e716e"},"schema_version":"1.0"},"canonical_sha256":"4037b921e3ba343825cc8de4b1f39e0fd415ee74fa364d93393e0800ad60c1a1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:59:24.498276Z","signature_b64":"+fA+K9QwUv0gCXmt77jXkhc4iY7UZQnieLgYCOyXn/eekTTaLDUqeX7aT+zie5hdx+tg/q1ecAq/hodrb7dvBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4037b921e3ba343825cc8de4b1f39e0fd415ee74fa364d93393e0800ad60c1a1","last_reissued_at":"2026-07-05T05:59:24.497826Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:59:24.497826Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2304.03600","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":"2026-07-05T05:59:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mTFaWtj7uhRdn8JX1tjAm/Ms44AJ1VTLdB+ghPYY/kJq2bsDWPVcE0HIPXqVRzqd15RQ4vdnCJAoBL5vOJYDCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:03:40.477800Z"},"content_sha256":"72a066604295e79dddc6e2d655f7bc41f1e64c57d149d5631ed08fa147f5c611","schema_version":"1.0","event_id":"sha256:72a066604295e79dddc6e2d655f7bc41f1e64c57d149d5631ed08fa147f5c611"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:IA33SIPDXI2DQJOMRXSLD446B7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Joint Block-Sparse Recovery Using Simultaneous BOMP/BOLS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Liyang Lu, Sheng Chen, Zhaocheng Wang","submitted_at":"2023-04-07T11:51:32Z","abstract_excerpt":"We consider the greedy algorithms for the joint recovery of high-dimensional sparse signals based on the block multiple measurement vector (BMMV) model in compressed sensing (CS). To this end, we first put forth two versions of simultaneous block orthogonal least squares (S-BOLS) as the baseline for the OLS framework. Their cornerstone is to sequentially check and select the support block to minimize the residual power. Then, parallel performance analysis for the existing simultaneous block orthogonal matching pursuit (S-BOMP) and the two proposed S-BOLS algorithms is developed. It indicates t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.03600","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/2304.03600/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":"2026-07-05T05:59:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YEGFeHXQCrgJSw/tw/GvXYqeVxvsQDJFUel9uZAA2rZM9nAhgC/HBwqPdP+wk/S85YAnSus8saW0DFt6zrCzDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:03:40.478212Z"},"content_sha256":"f24d47eb71fb13e382cd02982ef6a53b4ebac9f71898678bf4f978d268e7db75","schema_version":"1.0","event_id":"sha256:f24d47eb71fb13e382cd02982ef6a53b4ebac9f71898678bf4f978d268e7db75"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IA33SIPDXI2DQJOMRXSLD446B7/bundle.json","state_url":"https://pith.science/pith/IA33SIPDXI2DQJOMRXSLD446B7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IA33SIPDXI2DQJOMRXSLD446B7/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":"2026-07-07T11:03:40Z","links":{"resolver":"https://pith.science/pith/IA33SIPDXI2DQJOMRXSLD446B7","bundle":"https://pith.science/pith/IA33SIPDXI2DQJOMRXSLD446B7/bundle.json","state":"https://pith.science/pith/IA33SIPDXI2DQJOMRXSLD446B7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IA33SIPDXI2DQJOMRXSLD446B7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:IA33SIPDXI2DQJOMRXSLD446B7","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":"5b26a46d440a87ed695207fef96d1655c2d80f0e1a15138fb5ce7e6d7b4e716e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2023-04-07T11:51:32Z","title_canon_sha256":"5976978fac98ef65b98c0afb0db928235b317f112b2cefa8cc6def051e5c175a"},"schema_version":"1.0","source":{"id":"2304.03600","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.03600","created_at":"2026-07-05T05:59:24Z"},{"alias_kind":"arxiv_version","alias_value":"2304.03600v2","created_at":"2026-07-05T05:59:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.03600","created_at":"2026-07-05T05:59:24Z"},{"alias_kind":"pith_short_12","alias_value":"IA33SIPDXI2D","created_at":"2026-07-05T05:59:24Z"},{"alias_kind":"pith_short_16","alias_value":"IA33SIPDXI2DQJOM","created_at":"2026-07-05T05:59:24Z"},{"alias_kind":"pith_short_8","alias_value":"IA33SIPD","created_at":"2026-07-05T05:59:24Z"}],"graph_snapshots":[{"event_id":"sha256:f24d47eb71fb13e382cd02982ef6a53b4ebac9f71898678bf4f978d268e7db75","target":"graph","created_at":"2026-07-05T05:59:24Z","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/2304.03600/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We consider the greedy algorithms for the joint recovery of high-dimensional sparse signals based on the block multiple measurement vector (BMMV) model in compressed sensing (CS). To this end, we first put forth two versions of simultaneous block orthogonal least squares (S-BOLS) as the baseline for the OLS framework. Their cornerstone is to sequentially check and select the support block to minimize the residual power. Then, parallel performance analysis for the existing simultaneous block orthogonal matching pursuit (S-BOMP) and the two proposed S-BOLS algorithms is developed. It indicates t","authors_text":"Liyang Lu, Sheng Chen, Zhaocheng Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2023-04-07T11:51:32Z","title":"Joint Block-Sparse Recovery Using Simultaneous BOMP/BOLS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.03600","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":"sha256:72a066604295e79dddc6e2d655f7bc41f1e64c57d149d5631ed08fa147f5c611","target":"record","created_at":"2026-07-05T05:59:24Z","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":"5b26a46d440a87ed695207fef96d1655c2d80f0e1a15138fb5ce7e6d7b4e716e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2023-04-07T11:51:32Z","title_canon_sha256":"5976978fac98ef65b98c0afb0db928235b317f112b2cefa8cc6def051e5c175a"},"schema_version":"1.0","source":{"id":"2304.03600","kind":"arxiv","version":2}},"canonical_sha256":"4037b921e3ba343825cc8de4b1f39e0fd415ee74fa364d93393e0800ad60c1a1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4037b921e3ba343825cc8de4b1f39e0fd415ee74fa364d93393e0800ad60c1a1","first_computed_at":"2026-07-05T05:59:24.497826Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:59:24.497826Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+fA+K9QwUv0gCXmt77jXkhc4iY7UZQnieLgYCOyXn/eekTTaLDUqeX7aT+zie5hdx+tg/q1ecAq/hodrb7dvBA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:59:24.498276Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.03600","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:72a066604295e79dddc6e2d655f7bc41f1e64c57d149d5631ed08fa147f5c611","sha256:f24d47eb71fb13e382cd02982ef6a53b4ebac9f71898678bf4f978d268e7db75"],"state_sha256":"9fbe8458a62fe4feedd86c113a15e77830fce9ab5b2723890fd8d8e77777c407"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GI2VSD971NnpySBwaxNdFWNnUx5VaCdwfy7G84gDNlG0ADAoZs3Gk4aIO9PN5TlL3eh5U+0+1WDYG4p6fMo+Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T11:03:40.480238Z","bundle_sha256":"265ec9cf1708afe9df1df16aaa240e1a4fa481839f0284b57826054681d126c4"}}