{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:IQUETICFN3PZTXXTSDHSUGEKGF","short_pith_number":"pith:IQUETICF","canonical_record":{"source":{"id":"1907.03547","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-06-29T04:14:40Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"65346b3def690b204ed9ea5a6f25ddf4b5aeb083f871001d27ee4f1a4cae3ee3","abstract_canon_sha256":"4b2864e12c4d8a06c76fd15fe5b9f68a64e750296d8867844bbf3c8678ee058b"},"schema_version":"1.0"},"canonical_sha256":"442849a0456edf99def390cf2a188a314db9813771c885640db224529c2a19a7","source":{"kind":"arxiv","id":"1907.03547","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.03547","created_at":"2026-05-17T23:41:14Z"},{"alias_kind":"arxiv_version","alias_value":"1907.03547v1","created_at":"2026-05-17T23:41:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.03547","created_at":"2026-05-17T23:41:14Z"},{"alias_kind":"pith_short_12","alias_value":"IQUETICFN3PZ","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IQUETICFN3PZTXXT","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IQUETICF","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:IQUETICFN3PZTXXTSDHSUGEKGF","target":"record","payload":{"canonical_record":{"source":{"id":"1907.03547","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-06-29T04:14:40Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"65346b3def690b204ed9ea5a6f25ddf4b5aeb083f871001d27ee4f1a4cae3ee3","abstract_canon_sha256":"4b2864e12c4d8a06c76fd15fe5b9f68a64e750296d8867844bbf3c8678ee058b"},"schema_version":"1.0"},"canonical_sha256":"442849a0456edf99def390cf2a188a314db9813771c885640db224529c2a19a7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:14.356899Z","signature_b64":"q7WpkfVDaXXcjaQBoF+PGKjeNGy6UzXzazFph7eIjx3OtsicwU5f5fNmG6DOw9/iycPSOQwr5mV9/N//nDkUCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"442849a0456edf99def390cf2a188a314db9813771c885640db224529c2a19a7","last_reissued_at":"2026-05-17T23:41:14.356554Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:14.356554Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.03547","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":"2026-05-17T23:41:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bybMTBFpEKOt9YEZT1ocrVcqNzV9tZJ0egZk8V+25LgnqCXXBbe30HVOfB1GznxVzwqJVv9aH1IxcJBrs2zHAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T09:30:12.207427Z"},"content_sha256":"02cfc76d6d9c15e8484d1798b37a7e07e300259b2ebd459caa6f6d0c71766d6d","schema_version":"1.0","event_id":"sha256:02cfc76d6d9c15e8484d1798b37a7e07e300259b2ebd459caa6f6d0c71766d6d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:IQUETICFN3PZTXXTSDHSUGEKGF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exact Crystalline Structure Recovery in X-ray Crystallography from Coded Diffraction Patterns","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.chem-ph"],"primary_cat":"eess.IV","authors_text":"Cesar Vargas, Henry Arguello, Jorge Bacca, Juan Carlos Poveda-Jaramillo, Samuel Pinilla","submitted_at":"2019-06-29T04:14:40Z","abstract_excerpt":"X-ray crystallography (XC) is an experimental technique used to determine three-dimensional crystalline structures. The acquired data in XC, called diffraction patterns, is the Fourier magnitudes of the unknown crystalline structure. To estimate the crystalline structure from its diffraction patterns, we propose to modify the traditional system by including an optical element called coded aperture which modulates the diffracted field to acquire coded diffraction patterns (CDP). For the proposed coded system, in contrast with the traditional, we derive exact reconstruction guarantees for the cr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.03547","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":"2026-05-17T23:41:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rr70rUjgK+02YwpYYMaUvNqmse39nH1o/LtAFnu02RC3cYgam03xXJ0luOWXCt1dBCXVek6NFHY7FpsV7OnSCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T09:30:12.207967Z"},"content_sha256":"221edf5387c228330d0205cbfc9cc5cfd1454fe70c4292d37dbe1eb25022e9a6","schema_version":"1.0","event_id":"sha256:221edf5387c228330d0205cbfc9cc5cfd1454fe70c4292d37dbe1eb25022e9a6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IQUETICFN3PZTXXTSDHSUGEKGF/bundle.json","state_url":"https://pith.science/pith/IQUETICFN3PZTXXTSDHSUGEKGF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IQUETICFN3PZTXXTSDHSUGEKGF/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":"2026-05-21T09:30:12Z","links":{"resolver":"https://pith.science/pith/IQUETICFN3PZTXXTSDHSUGEKGF","bundle":"https://pith.science/pith/IQUETICFN3PZTXXTSDHSUGEKGF/bundle.json","state":"https://pith.science/pith/IQUETICFN3PZTXXTSDHSUGEKGF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IQUETICFN3PZTXXTSDHSUGEKGF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:IQUETICFN3PZTXXTSDHSUGEKGF","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":"4b2864e12c4d8a06c76fd15fe5b9f68a64e750296d8867844bbf3c8678ee058b","cross_cats_sorted":["physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-06-29T04:14:40Z","title_canon_sha256":"65346b3def690b204ed9ea5a6f25ddf4b5aeb083f871001d27ee4f1a4cae3ee3"},"schema_version":"1.0","source":{"id":"1907.03547","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.03547","created_at":"2026-05-17T23:41:14Z"},{"alias_kind":"arxiv_version","alias_value":"1907.03547v1","created_at":"2026-05-17T23:41:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.03547","created_at":"2026-05-17T23:41:14Z"},{"alias_kind":"pith_short_12","alias_value":"IQUETICFN3PZ","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IQUETICFN3PZTXXT","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IQUETICF","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:221edf5387c228330d0205cbfc9cc5cfd1454fe70c4292d37dbe1eb25022e9a6","target":"graph","created_at":"2026-05-17T23:41:14Z","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":"X-ray crystallography (XC) is an experimental technique used to determine three-dimensional crystalline structures. The acquired data in XC, called diffraction patterns, is the Fourier magnitudes of the unknown crystalline structure. To estimate the crystalline structure from its diffraction patterns, we propose to modify the traditional system by including an optical element called coded aperture which modulates the diffracted field to acquire coded diffraction patterns (CDP). For the proposed coded system, in contrast with the traditional, we derive exact reconstruction guarantees for the cr","authors_text":"Cesar Vargas, Henry Arguello, Jorge Bacca, Juan Carlos Poveda-Jaramillo, Samuel Pinilla","cross_cats":["physics.chem-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-06-29T04:14:40Z","title":"Exact Crystalline Structure Recovery in X-ray Crystallography from Coded Diffraction Patterns"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.03547","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":"sha256:02cfc76d6d9c15e8484d1798b37a7e07e300259b2ebd459caa6f6d0c71766d6d","target":"record","created_at":"2026-05-17T23:41:14Z","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":"4b2864e12c4d8a06c76fd15fe5b9f68a64e750296d8867844bbf3c8678ee058b","cross_cats_sorted":["physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-06-29T04:14:40Z","title_canon_sha256":"65346b3def690b204ed9ea5a6f25ddf4b5aeb083f871001d27ee4f1a4cae3ee3"},"schema_version":"1.0","source":{"id":"1907.03547","kind":"arxiv","version":1}},"canonical_sha256":"442849a0456edf99def390cf2a188a314db9813771c885640db224529c2a19a7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"442849a0456edf99def390cf2a188a314db9813771c885640db224529c2a19a7","first_computed_at":"2026-05-17T23:41:14.356554Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:14.356554Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q7WpkfVDaXXcjaQBoF+PGKjeNGy6UzXzazFph7eIjx3OtsicwU5f5fNmG6DOw9/iycPSOQwr5mV9/N//nDkUCQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:14.356899Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.03547","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:02cfc76d6d9c15e8484d1798b37a7e07e300259b2ebd459caa6f6d0c71766d6d","sha256:221edf5387c228330d0205cbfc9cc5cfd1454fe70c4292d37dbe1eb25022e9a6"],"state_sha256":"0327e61a3615d30cffda15af6a76cace98ec40357723a0d55bd806a103742838"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dgomFjdCJXId1q1TYysXXw3irFZskyrfoz5F3YKi6HHNAwBrctnEq2+lPXQZS4hzvm3OddWM84zIW809QCaSAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T09:30:12.211153Z","bundle_sha256":"4f1bb47ed1d7c4426ab9a94db05730459a75667bc9e5e624495c2effefeeea58"}}