{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:UDFYLCPKJVMC22LBKUXVK26AVU","short_pith_number":"pith:UDFYLCPK","canonical_record":{"source":{"id":"1910.12199","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-10-27T07:02:14Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"a0f9c2ad624440c98c385801f2b533e82c2fa9b6441849339e783d5f03d78812","abstract_canon_sha256":"be2cf73c3d8886eaa0e598a03c8d949037b484953c48831128be3f7f58704804"},"schema_version":"1.0"},"canonical_sha256":"a0cb8589ea4d582d6961552f556bc0ad1b77d8cd4c851fd1257625f15cd73ffd","source":{"kind":"arxiv","id":"1910.12199","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.12199","created_at":"2026-07-05T00:15:13Z"},{"alias_kind":"arxiv_version","alias_value":"1910.12199v1","created_at":"2026-07-05T00:15:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.12199","created_at":"2026-07-05T00:15:13Z"},{"alias_kind":"pith_short_12","alias_value":"UDFYLCPKJVMC","created_at":"2026-07-05T00:15:13Z"},{"alias_kind":"pith_short_16","alias_value":"UDFYLCPKJVMC22LB","created_at":"2026-07-05T00:15:13Z"},{"alias_kind":"pith_short_8","alias_value":"UDFYLCPK","created_at":"2026-07-05T00:15:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:UDFYLCPKJVMC22LBKUXVK26AVU","target":"record","payload":{"canonical_record":{"source":{"id":"1910.12199","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-10-27T07:02:14Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"a0f9c2ad624440c98c385801f2b533e82c2fa9b6441849339e783d5f03d78812","abstract_canon_sha256":"be2cf73c3d8886eaa0e598a03c8d949037b484953c48831128be3f7f58704804"},"schema_version":"1.0"},"canonical_sha256":"a0cb8589ea4d582d6961552f556bc0ad1b77d8cd4c851fd1257625f15cd73ffd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:15:13.939837Z","signature_b64":"Qhnu35xtbRm9Gmt1NrWJnEHqP5e5m+maAzjiEmo7viEyN7+53ucc46nzLAgaO5amBI098Dd/vbwY+DpnA/mzCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a0cb8589ea4d582d6961552f556bc0ad1b77d8cd4c851fd1257625f15cd73ffd","last_reissued_at":"2026-07-05T00:15:13.939496Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:15:13.939496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1910.12199","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":"2026-07-05T00:15:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"10cezVT6zc73AM6oFVMw2drtIrRvdioI0Uc/aPOtVxIHDDBr1JMa3Knodp9NJW+8WSwM+hWJisYy6EmR70JTDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T09:57:51.664752Z"},"content_sha256":"852da589d125f49628afa79bfca154b009e992473e6761a0f896b2c424ca9805","schema_version":"1.0","event_id":"sha256:852da589d125f49628afa79bfca154b009e992473e6761a0f896b2c424ca9805"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:UDFYLCPKJVMC22LBKUXVK26AVU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-Resolution, Respiratory-Resolved Coronary MRA Using a Phyllotaxis-Reordered Variable-Density 3D Cones Trajectory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.IV"],"primary_cat":"physics.med-ph","authors_text":"Bob S. Hu, Corey A. Baron, Dwight G. Nishimura, Frank Ong, Joseph Y. Cheng, Mario O. Malave, Nii Okai Addy, Phillip C. Yang, Srivathsan P. Koundinyan","submitted_at":"2019-10-27T07:02:14Z","abstract_excerpt":"Purpose: To develop a respiratory-resolved motion-compensation method for free-breathing, high-resolution coronary magnetic resonance angiography using a 3D cones trajectory.\n  Methods: To achieve respiratory-resolved 0.98 mm resolution images in a clinically relevant scan time, we undersample the imaging data with a variable-density 3D cones trajectory. For retrospective motion compensation, translational estimates from 3D image-based navigators (3D iNAVs) are used to bin the imaging data into four phases from end-expiration to end-inspiration. To ensure pseudo-random undersampling within eac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.12199","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1910.12199/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":"2026-07-05T00:15:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tuqRDocf95gIwk4PDtcgWdNPJONryPjXHaaB4ZDkkchmcAVFwT2k5VA5LAOzzsyhiOPqIXgtS+XPEuNGcMzNBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T09:57:51.665540Z"},"content_sha256":"e303c33f926226afdf56901a1f85a91bbe86ec56dadfbe02e173bff4456bbcd8","schema_version":"1.0","event_id":"sha256:e303c33f926226afdf56901a1f85a91bbe86ec56dadfbe02e173bff4456bbcd8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UDFYLCPKJVMC22LBKUXVK26AVU/bundle.json","state_url":"https://pith.science/pith/UDFYLCPKJVMC22LBKUXVK26AVU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UDFYLCPKJVMC22LBKUXVK26AVU/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":"2026-08-17T09:57:51Z","links":{"resolver":"https://pith.science/pith/UDFYLCPKJVMC22LBKUXVK26AVU","bundle":"https://pith.science/pith/UDFYLCPKJVMC22LBKUXVK26AVU/bundle.json","state":"https://pith.science/pith/UDFYLCPKJVMC22LBKUXVK26AVU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UDFYLCPKJVMC22LBKUXVK26AVU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:UDFYLCPKJVMC22LBKUXVK26AVU","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":"be2cf73c3d8886eaa0e598a03c8d949037b484953c48831128be3f7f58704804","cross_cats_sorted":["eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-10-27T07:02:14Z","title_canon_sha256":"a0f9c2ad624440c98c385801f2b533e82c2fa9b6441849339e783d5f03d78812"},"schema_version":"1.0","source":{"id":"1910.12199","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.12199","created_at":"2026-07-05T00:15:13Z"},{"alias_kind":"arxiv_version","alias_value":"1910.12199v1","created_at":"2026-07-05T00:15:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.12199","created_at":"2026-07-05T00:15:13Z"},{"alias_kind":"pith_short_12","alias_value":"UDFYLCPKJVMC","created_at":"2026-07-05T00:15:13Z"},{"alias_kind":"pith_short_16","alias_value":"UDFYLCPKJVMC22LB","created_at":"2026-07-05T00:15:13Z"},{"alias_kind":"pith_short_8","alias_value":"UDFYLCPK","created_at":"2026-07-05T00:15:13Z"}],"graph_snapshots":[{"event_id":"sha256:e303c33f926226afdf56901a1f85a91bbe86ec56dadfbe02e173bff4456bbcd8","target":"graph","created_at":"2026-07-05T00:15:13Z","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/1910.12199/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Purpose: To develop a respiratory-resolved motion-compensation method for free-breathing, high-resolution coronary magnetic resonance angiography using a 3D cones trajectory.\n  Methods: To achieve respiratory-resolved 0.98 mm resolution images in a clinically relevant scan time, we undersample the imaging data with a variable-density 3D cones trajectory. For retrospective motion compensation, translational estimates from 3D image-based navigators (3D iNAVs) are used to bin the imaging data into four phases from end-expiration to end-inspiration. To ensure pseudo-random undersampling within eac","authors_text":"Bob S. Hu, Corey A. Baron, Dwight G. Nishimura, Frank Ong, Joseph Y. Cheng, Mario O. Malave, Nii Okai Addy, Phillip C. Yang, Srivathsan P. Koundinyan","cross_cats":["eess.IV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-10-27T07:02:14Z","title":"High-Resolution, Respiratory-Resolved Coronary MRA Using a Phyllotaxis-Reordered Variable-Density 3D Cones Trajectory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.12199","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":"sha256:852da589d125f49628afa79bfca154b009e992473e6761a0f896b2c424ca9805","target":"record","created_at":"2026-07-05T00:15:13Z","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":"be2cf73c3d8886eaa0e598a03c8d949037b484953c48831128be3f7f58704804","cross_cats_sorted":["eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-10-27T07:02:14Z","title_canon_sha256":"a0f9c2ad624440c98c385801f2b533e82c2fa9b6441849339e783d5f03d78812"},"schema_version":"1.0","source":{"id":"1910.12199","kind":"arxiv","version":1}},"canonical_sha256":"a0cb8589ea4d582d6961552f556bc0ad1b77d8cd4c851fd1257625f15cd73ffd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a0cb8589ea4d582d6961552f556bc0ad1b77d8cd4c851fd1257625f15cd73ffd","first_computed_at":"2026-07-05T00:15:13.939496Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:15:13.939496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Qhnu35xtbRm9Gmt1NrWJnEHqP5e5m+maAzjiEmo7viEyN7+53ucc46nzLAgaO5amBI098Dd/vbwY+DpnA/mzCA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:15:13.939837Z","signed_message":"canonical_sha256_bytes"},"source_id":"1910.12199","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:852da589d125f49628afa79bfca154b009e992473e6761a0f896b2c424ca9805","sha256:e303c33f926226afdf56901a1f85a91bbe86ec56dadfbe02e173bff4456bbcd8"],"state_sha256":"f8dbedb7d336673c5717a5338fff94274b2dc5a6d133a30d8f90ccce45039046"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1edXY5P5psmfNvkTsULgeWuJ02WmIV0rOtrlqqRfMYMw4nIFAV5gXuHMgnplhjpOPVQZzB7W8ZrnewIvo7WFAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T09:57:51.671348Z","bundle_sha256":"f74162d85c3f471899c8ab0192ec3c6e138cb2aaa72a9a92e786bacba5dbad6c"}}