{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:BZJ7SCYV2ZKTSMCB3IUTSV3MEF","short_pith_number":"pith:BZJ7SCYV","canonical_record":{"source":{"id":"1611.08280","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2016-11-24T18:24:58Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"22271eae5af37273f74d8722cee368c9048ec430bac16d1ece1b2fc45e4c9fe8","abstract_canon_sha256":"3c489b681f34c7b064740d26d5aecaa5a2cf4575120b6478eb2bfb73a886a453"},"schema_version":"1.0"},"canonical_sha256":"0e53f90b15d655393041da2939576c216722a552da61101ff95794f8013b2b2d","source":{"kind":"arxiv","id":"1611.08280","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.08280","created_at":"2026-05-18T00:21:38Z"},{"alias_kind":"arxiv_version","alias_value":"1611.08280v4","created_at":"2026-05-18T00:21:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.08280","created_at":"2026-05-18T00:21:38Z"},{"alias_kind":"pith_short_12","alias_value":"BZJ7SCYV2ZKT","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"BZJ7SCYV2ZKTSMCB","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"BZJ7SCYV","created_at":"2026-05-18T12:30:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:BZJ7SCYV2ZKTSMCB3IUTSV3MEF","target":"record","payload":{"canonical_record":{"source":{"id":"1611.08280","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2016-11-24T18:24:58Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"22271eae5af37273f74d8722cee368c9048ec430bac16d1ece1b2fc45e4c9fe8","abstract_canon_sha256":"3c489b681f34c7b064740d26d5aecaa5a2cf4575120b6478eb2bfb73a886a453"},"schema_version":"1.0"},"canonical_sha256":"0e53f90b15d655393041da2939576c216722a552da61101ff95794f8013b2b2d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:21:38.787343Z","signature_b64":"4PRJZoZA3nNOFjrTiPfvChltqf6GpU5di/GAqKlaVsmzSjQxdgbGUqFQR4yYdGqDWp5aivL7EnGpK1YmSHHDDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0e53f90b15d655393041da2939576c216722a552da61101ff95794f8013b2b2d","last_reissued_at":"2026-05-18T00:21:38.786680Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:21:38.786680Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1611.08280","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:21:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"17Si4JX1ctjepmRSx9BZtj6ggEvsuvzx60mZ7CHzXFSmBO+KaqIfprB37E196zNnAp81IFpUpswJqgJ8JTcNDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T09:28:21.054434Z"},"content_sha256":"e3032fa9d6e3095cdae11747a98af6cf485b0100083da7d07bde52a1246024b8","schema_version":"1.0","event_id":"sha256:e3032fa9d6e3095cdae11747a98af6cf485b0100083da7d07bde52a1246024b8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:BZJ7SCYV2ZKTSMCB3IUTSV3MEF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Two-Level Structural Sparsity Regularization for Identifying Lattices and Defects in Noisy Images","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"stat.AP","authors_text":"Alex Belianinov, Chiwoo Park, Ondrej Dyck, Stephen Jesse, Xin Li","submitted_at":"2016-11-24T18:24:58Z","abstract_excerpt":"This paper presents a regularized regression model with a two-level structural sparsity penalty applied to locate individual atoms in a noisy scanning transmission electron microscopy image (STEM). In crystals, the locations of atoms is symmetric, condensed into a few lattice groups. Therefore, by identifying the underlying lattice in a given image, individual atoms can be accurately located. We propose to formulate the identification of the lattice groups as a sparse group selection problem. Furthermore, real atomic scale images contain defects and vacancies, so atomic identification based so"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.08280","kind":"arxiv","version":4},"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":"2026-05-18T00:21:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c04OxDtuoLBA1kBw/NylIpVSxBIFcczQ5p9eSi0qNPwzhZ9tVbpJfqQbCTQH0jLuSEWApX0U4AEX7mp4F57sDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T09:28:21.054806Z"},"content_sha256":"c2fee34d793d874102b2f3523f80a4aa36bee527c6968991fc8d3f4acea4db30","schema_version":"1.0","event_id":"sha256:c2fee34d793d874102b2f3523f80a4aa36bee527c6968991fc8d3f4acea4db30"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BZJ7SCYV2ZKTSMCB3IUTSV3MEF/bundle.json","state_url":"https://pith.science/pith/BZJ7SCYV2ZKTSMCB3IUTSV3MEF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BZJ7SCYV2ZKTSMCB3IUTSV3MEF/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":"2026-05-20T09:28:21Z","links":{"resolver":"https://pith.science/pith/BZJ7SCYV2ZKTSMCB3IUTSV3MEF","bundle":"https://pith.science/pith/BZJ7SCYV2ZKTSMCB3IUTSV3MEF/bundle.json","state":"https://pith.science/pith/BZJ7SCYV2ZKTSMCB3IUTSV3MEF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BZJ7SCYV2ZKTSMCB3IUTSV3MEF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:BZJ7SCYV2ZKTSMCB3IUTSV3MEF","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":"3c489b681f34c7b064740d26d5aecaa5a2cf4575120b6478eb2bfb73a886a453","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2016-11-24T18:24:58Z","title_canon_sha256":"22271eae5af37273f74d8722cee368c9048ec430bac16d1ece1b2fc45e4c9fe8"},"schema_version":"1.0","source":{"id":"1611.08280","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.08280","created_at":"2026-05-18T00:21:38Z"},{"alias_kind":"arxiv_version","alias_value":"1611.08280v4","created_at":"2026-05-18T00:21:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.08280","created_at":"2026-05-18T00:21:38Z"},{"alias_kind":"pith_short_12","alias_value":"BZJ7SCYV2ZKT","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"BZJ7SCYV2ZKTSMCB","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"BZJ7SCYV","created_at":"2026-05-18T12:30:09Z"}],"graph_snapshots":[{"event_id":"sha256:c2fee34d793d874102b2f3523f80a4aa36bee527c6968991fc8d3f4acea4db30","target":"graph","created_at":"2026-05-18T00:21:38Z","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":"This paper presents a regularized regression model with a two-level structural sparsity penalty applied to locate individual atoms in a noisy scanning transmission electron microscopy image (STEM). In crystals, the locations of atoms is symmetric, condensed into a few lattice groups. Therefore, by identifying the underlying lattice in a given image, individual atoms can be accurately located. We propose to formulate the identification of the lattice groups as a sparse group selection problem. Furthermore, real atomic scale images contain defects and vacancies, so atomic identification based so","authors_text":"Alex Belianinov, Chiwoo Park, Ondrej Dyck, Stephen Jesse, Xin Li","cross_cats":["cs.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2016-11-24T18:24:58Z","title":"Two-Level Structural Sparsity Regularization for Identifying Lattices and Defects in Noisy Images"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.08280","kind":"arxiv","version":4},"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:e3032fa9d6e3095cdae11747a98af6cf485b0100083da7d07bde52a1246024b8","target":"record","created_at":"2026-05-18T00:21:38Z","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":"3c489b681f34c7b064740d26d5aecaa5a2cf4575120b6478eb2bfb73a886a453","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2016-11-24T18:24:58Z","title_canon_sha256":"22271eae5af37273f74d8722cee368c9048ec430bac16d1ece1b2fc45e4c9fe8"},"schema_version":"1.0","source":{"id":"1611.08280","kind":"arxiv","version":4}},"canonical_sha256":"0e53f90b15d655393041da2939576c216722a552da61101ff95794f8013b2b2d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0e53f90b15d655393041da2939576c216722a552da61101ff95794f8013b2b2d","first_computed_at":"2026-05-18T00:21:38.786680Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:21:38.786680Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4PRJZoZA3nNOFjrTiPfvChltqf6GpU5di/GAqKlaVsmzSjQxdgbGUqFQR4yYdGqDWp5aivL7EnGpK1YmSHHDDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:21:38.787343Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.08280","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e3032fa9d6e3095cdae11747a98af6cf485b0100083da7d07bde52a1246024b8","sha256:c2fee34d793d874102b2f3523f80a4aa36bee527c6968991fc8d3f4acea4db30"],"state_sha256":"b11793b847e4d448c3168ec751cdbffef7e2c18d3f7fbe72ee82f7005b4b3a16"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ac9suP66i9GR3Fz0HjKPC7BhyUNbin1B8DDgfB4Q3N/XhLqpDKGz4V1B4y1VibcpCDyJ4al9RaHXMzJ6uPAyBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T09:28:21.056973Z","bundle_sha256":"c88c15b14e99ffaaee36428618ac9e2d2d0f91cda832c7324aa26e6ae3998526"}}