{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:6BX4YHNBRPSTXPXLLWN6V5YPYD","short_pith_number":"pith:6BX4YHNB","canonical_record":{"source":{"id":"1309.6195","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2013-09-20T23:08:27Z","cross_cats_sorted":[],"title_canon_sha256":"7b5eee1377700ba27a9c56fe2b3df4eeae9b7fb9bd754c9f0bde091860658f52","abstract_canon_sha256":"b3378168acf202417bc1b907235d7bb41f4acc6f84028b6f5712c4c1806a6ad5"},"schema_version":"1.0"},"canonical_sha256":"f06fcc1da18be53bbeeb5d9beaf70fc0c9f35adbf95e3a2cc966194489499585","source":{"kind":"arxiv","id":"1309.6195","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.6195","created_at":"2026-05-18T03:12:23Z"},{"alias_kind":"arxiv_version","alias_value":"1309.6195v1","created_at":"2026-05-18T03:12:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.6195","created_at":"2026-05-18T03:12:23Z"},{"alias_kind":"pith_short_12","alias_value":"6BX4YHNBRPST","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_16","alias_value":"6BX4YHNBRPSTXPXL","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_8","alias_value":"6BX4YHNB","created_at":"2026-05-18T12:27:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:6BX4YHNBRPSTXPXLLWN6V5YPYD","target":"record","payload":{"canonical_record":{"source":{"id":"1309.6195","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2013-09-20T23:08:27Z","cross_cats_sorted":[],"title_canon_sha256":"7b5eee1377700ba27a9c56fe2b3df4eeae9b7fb9bd754c9f0bde091860658f52","abstract_canon_sha256":"b3378168acf202417bc1b907235d7bb41f4acc6f84028b6f5712c4c1806a6ad5"},"schema_version":"1.0"},"canonical_sha256":"f06fcc1da18be53bbeeb5d9beaf70fc0c9f35adbf95e3a2cc966194489499585","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:12:23.567269Z","signature_b64":"HQY6p5eet2Rv0k7RhC4CHcKEh8KJ00jKJt+BpRvgU6LwIug+Lf4MHTXxuMlZ/wWZJH5HmmIzJn7X66ES+a8MBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f06fcc1da18be53bbeeb5d9beaf70fc0c9f35adbf95e3a2cc966194489499585","last_reissued_at":"2026-05-18T03:12:23.566528Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:12:23.566528Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1309.6195","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":"2026-05-18T03:12:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2tj+pgWP4Kea7UBQZaBSp9izycjdRujkoAnpioIazqYRLGI4GqxiNh+LoA08sVzpylnkjLOfYLyufkWa+mT5AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T05:03:45.075874Z"},"content_sha256":"22afd567479bf118dc44f9124b4e1e7cccf70e5e2d43019b3787a3990cc64ff5","schema_version":"1.0","event_id":"sha256:22afd567479bf118dc44f9124b4e1e7cccf70e5e2d43019b3787a3990cc64ff5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:6BX4YHNBRPSTXPXLLWN6V5YPYD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Scan-based Compressed Terahertz Imaging and Real-Time Reconstruction via the Complex-valued Fast Block Sparse Bayesian Learning Algorithm","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Benyuan Liu, Hongqi Fan, Qiang Fu, Zaiqi Lu","submitted_at":"2013-09-20T23:08:27Z","abstract_excerpt":"Compressed Sensing based Terahertz imaging (CS-THz) is a computational imaging technique. It uses only one THz receiver to accumulate the random modulated image measurements where the original THz image is reconstruct from these measurements using compressed sensing solvers. The advantage of the CS-THz is its reduced acquisition time compared with the raster scan mode. However, when it applied to large-scale two-dimensional (2D) imaging, the increased dimension resulted in both high computational complexity and excessive memory usage. In this paper, we introduced a novel CS-based THz imaging s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.6195","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":"2026-05-18T03:12:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JX1HxY7AOdJUBm38OouC7LigsVxnYntMhNrDyxIWwjjUh/kXvJcKtTsF8V66EtJQHvoogGmIparVWVTRyWJlDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T05:03:45.076562Z"},"content_sha256":"e627ef343ca5efd75a8b8796b059a2c508d22721052784330c0c1edd3ff21c9a","schema_version":"1.0","event_id":"sha256:e627ef343ca5efd75a8b8796b059a2c508d22721052784330c0c1edd3ff21c9a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6BX4YHNBRPSTXPXLLWN6V5YPYD/bundle.json","state_url":"https://pith.science/pith/6BX4YHNBRPSTXPXLLWN6V5YPYD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6BX4YHNBRPSTXPXLLWN6V5YPYD/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":"2026-05-26T05:03:45Z","links":{"resolver":"https://pith.science/pith/6BX4YHNBRPSTXPXLLWN6V5YPYD","bundle":"https://pith.science/pith/6BX4YHNBRPSTXPXLLWN6V5YPYD/bundle.json","state":"https://pith.science/pith/6BX4YHNBRPSTXPXLLWN6V5YPYD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6BX4YHNBRPSTXPXLLWN6V5YPYD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:6BX4YHNBRPSTXPXLLWN6V5YPYD","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":"b3378168acf202417bc1b907235d7bb41f4acc6f84028b6f5712c4c1806a6ad5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2013-09-20T23:08:27Z","title_canon_sha256":"7b5eee1377700ba27a9c56fe2b3df4eeae9b7fb9bd754c9f0bde091860658f52"},"schema_version":"1.0","source":{"id":"1309.6195","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.6195","created_at":"2026-05-18T03:12:23Z"},{"alias_kind":"arxiv_version","alias_value":"1309.6195v1","created_at":"2026-05-18T03:12:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.6195","created_at":"2026-05-18T03:12:23Z"},{"alias_kind":"pith_short_12","alias_value":"6BX4YHNBRPST","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_16","alias_value":"6BX4YHNBRPSTXPXL","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_8","alias_value":"6BX4YHNB","created_at":"2026-05-18T12:27:36Z"}],"graph_snapshots":[{"event_id":"sha256:e627ef343ca5efd75a8b8796b059a2c508d22721052784330c0c1edd3ff21c9a","target":"graph","created_at":"2026-05-18T03:12:23Z","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":"Compressed Sensing based Terahertz imaging (CS-THz) is a computational imaging technique. It uses only one THz receiver to accumulate the random modulated image measurements where the original THz image is reconstruct from these measurements using compressed sensing solvers. The advantage of the CS-THz is its reduced acquisition time compared with the raster scan mode. However, when it applied to large-scale two-dimensional (2D) imaging, the increased dimension resulted in both high computational complexity and excessive memory usage. In this paper, we introduced a novel CS-based THz imaging s","authors_text":"Benyuan Liu, Hongqi Fan, Qiang Fu, Zaiqi Lu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2013-09-20T23:08:27Z","title":"Scan-based Compressed Terahertz Imaging and Real-Time Reconstruction via the Complex-valued Fast Block Sparse Bayesian Learning Algorithm"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.6195","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":"sha256:22afd567479bf118dc44f9124b4e1e7cccf70e5e2d43019b3787a3990cc64ff5","target":"record","created_at":"2026-05-18T03:12:23Z","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":"b3378168acf202417bc1b907235d7bb41f4acc6f84028b6f5712c4c1806a6ad5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2013-09-20T23:08:27Z","title_canon_sha256":"7b5eee1377700ba27a9c56fe2b3df4eeae9b7fb9bd754c9f0bde091860658f52"},"schema_version":"1.0","source":{"id":"1309.6195","kind":"arxiv","version":1}},"canonical_sha256":"f06fcc1da18be53bbeeb5d9beaf70fc0c9f35adbf95e3a2cc966194489499585","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f06fcc1da18be53bbeeb5d9beaf70fc0c9f35adbf95e3a2cc966194489499585","first_computed_at":"2026-05-18T03:12:23.566528Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:12:23.566528Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HQY6p5eet2Rv0k7RhC4CHcKEh8KJ00jKJt+BpRvgU6LwIug+Lf4MHTXxuMlZ/wWZJH5HmmIzJn7X66ES+a8MBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:12:23.567269Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.6195","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:22afd567479bf118dc44f9124b4e1e7cccf70e5e2d43019b3787a3990cc64ff5","sha256:e627ef343ca5efd75a8b8796b059a2c508d22721052784330c0c1edd3ff21c9a"],"state_sha256":"fdfb7b8b4d47196b8e011c2deb82202d1356d01b7d4a1080503731ea2ec18af0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dQ2Hg6JOj69E4RFmYi4TQUl8xtIGG9hUoI1Kv/ZF4gJn2Nbq+xGb2CayO8gUHPgAuIKb+BsrEZpD1jPZa0edAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T05:03:45.080158Z","bundle_sha256":"6f87d4f9fc58f8ec9776cc93063768497b34f3259fcbd8343894d8d4d9aac8ad"}}