{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:DQ5M7WR7UINWF4UXEK2GKB6JRV","short_pith_number":"pith:DQ5M7WR7","canonical_record":{"source":{"id":"2102.08303","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-02-10T15:33:57Z","cross_cats_sorted":[],"title_canon_sha256":"e6eb969276f0ddb45f00e251708b46f2ce8be02d261a8a5539156aa265a796df","abstract_canon_sha256":"4e5d8a7866155f2959fd847623207ba8311a362f3a7a6867a8a93ec21c212cd6"},"schema_version":"1.0"},"canonical_sha256":"1c3acfda3fa21b62f29722b46507c98d7b45b9ae94948e7ca47d5196722bb23d","source":{"kind":"arxiv","id":"2102.08303","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.08303","created_at":"2026-07-05T02:15:48Z"},{"alias_kind":"arxiv_version","alias_value":"2102.08303v1","created_at":"2026-07-05T02:15:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.08303","created_at":"2026-07-05T02:15:48Z"},{"alias_kind":"pith_short_12","alias_value":"DQ5M7WR7UINW","created_at":"2026-07-05T02:15:48Z"},{"alias_kind":"pith_short_16","alias_value":"DQ5M7WR7UINWF4UX","created_at":"2026-07-05T02:15:48Z"},{"alias_kind":"pith_short_8","alias_value":"DQ5M7WR7","created_at":"2026-07-05T02:15:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:DQ5M7WR7UINWF4UXEK2GKB6JRV","target":"record","payload":{"canonical_record":{"source":{"id":"2102.08303","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-02-10T15:33:57Z","cross_cats_sorted":[],"title_canon_sha256":"e6eb969276f0ddb45f00e251708b46f2ce8be02d261a8a5539156aa265a796df","abstract_canon_sha256":"4e5d8a7866155f2959fd847623207ba8311a362f3a7a6867a8a93ec21c212cd6"},"schema_version":"1.0"},"canonical_sha256":"1c3acfda3fa21b62f29722b46507c98d7b45b9ae94948e7ca47d5196722bb23d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:15:48.323034Z","signature_b64":"QCDwGX0ghND7B3a+Da/5o/Jxn6rVe6KPJ7luKT3Mnc5IeOz+d3FF6X1erit0w0Pz7iTyvOALzEZL8bApvNCKBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1c3acfda3fa21b62f29722b46507c98d7b45b9ae94948e7ca47d5196722bb23d","last_reissued_at":"2026-07-05T02:15:48.322561Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:15:48.322561Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2102.08303","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":"2026-07-05T02:15:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ddAe4NdD9yVQm/hJ0kzrtoMvmBTBClGnBMFV8LOGwNuuhAN4t+5VgzW3CsnUY+IPGnVW+ft3ncci7ku5kmmNCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T07:34:50.008369Z"},"content_sha256":"aa924c6f6d7848ecdbce85055352d8e0c9a53f06474f1391890c5f759161aea8","schema_version":"1.0","event_id":"sha256:aa924c6f6d7848ecdbce85055352d8e0c9a53f06474f1391890c5f759161aea8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:DQ5M7WR7UINWF4UXEK2GKB6JRV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Characterization of Pd and Pd@Au core-shell nanoparticles using atom probe tomography and field evaporation simulation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Chang-Min Kwak, Constantinos Hatzoglou, Francois Vurpillot, Jae-Bok Seol, Jae-Pyoung Ahn, Kyuseon Jang, Phil Woong Kang, Pyuck-Pa Choi, Se-Ho Kim","submitted_at":"2021-02-10T15:33:57Z","abstract_excerpt":"We report on atom probe tomography analyses of Pd and Pd@Au nanoparticles embedded in a Ni matrix and the effects of local evaporation field variations on the atom probe data. In order to assess the integrity of the reconstructed atom maps, we performed numerical simulations of the field evaporation processes and compared the simulated datasets with experimentally acquired data. The distortions seen in the atom maps for both Pd and Pd@Au nanoparticles could be mostly ascribed to local variations in chemical composition and elemental evaporation fields. The evaporation field values for Pd and N"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.08303","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/2102.08303/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":"2026-07-05T02:15:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bIbgYwD5iGMbx57wtzhavBoxxnTuFqFsnS2LjGtmR/503ItnIpzaMq3eM7VaHn4vcXHlCVR6Y4LHouECF80LAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T07:34:50.009025Z"},"content_sha256":"df3fe0f7789d7d5554bef0e041e287d7eb8fca5f21fca6b3020acb787e413e76","schema_version":"1.0","event_id":"sha256:df3fe0f7789d7d5554bef0e041e287d7eb8fca5f21fca6b3020acb787e413e76"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DQ5M7WR7UINWF4UXEK2GKB6JRV/bundle.json","state_url":"https://pith.science/pith/DQ5M7WR7UINWF4UXEK2GKB6JRV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DQ5M7WR7UINWF4UXEK2GKB6JRV/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":"2026-07-07T07:34:50Z","links":{"resolver":"https://pith.science/pith/DQ5M7WR7UINWF4UXEK2GKB6JRV","bundle":"https://pith.science/pith/DQ5M7WR7UINWF4UXEK2GKB6JRV/bundle.json","state":"https://pith.science/pith/DQ5M7WR7UINWF4UXEK2GKB6JRV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DQ5M7WR7UINWF4UXEK2GKB6JRV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:DQ5M7WR7UINWF4UXEK2GKB6JRV","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":"4e5d8a7866155f2959fd847623207ba8311a362f3a7a6867a8a93ec21c212cd6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-02-10T15:33:57Z","title_canon_sha256":"e6eb969276f0ddb45f00e251708b46f2ce8be02d261a8a5539156aa265a796df"},"schema_version":"1.0","source":{"id":"2102.08303","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.08303","created_at":"2026-07-05T02:15:48Z"},{"alias_kind":"arxiv_version","alias_value":"2102.08303v1","created_at":"2026-07-05T02:15:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.08303","created_at":"2026-07-05T02:15:48Z"},{"alias_kind":"pith_short_12","alias_value":"DQ5M7WR7UINW","created_at":"2026-07-05T02:15:48Z"},{"alias_kind":"pith_short_16","alias_value":"DQ5M7WR7UINWF4UX","created_at":"2026-07-05T02:15:48Z"},{"alias_kind":"pith_short_8","alias_value":"DQ5M7WR7","created_at":"2026-07-05T02:15:48Z"}],"graph_snapshots":[{"event_id":"sha256:df3fe0f7789d7d5554bef0e041e287d7eb8fca5f21fca6b3020acb787e413e76","target":"graph","created_at":"2026-07-05T02:15:48Z","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/2102.08303/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report on atom probe tomography analyses of Pd and Pd@Au nanoparticles embedded in a Ni matrix and the effects of local evaporation field variations on the atom probe data. In order to assess the integrity of the reconstructed atom maps, we performed numerical simulations of the field evaporation processes and compared the simulated datasets with experimentally acquired data. The distortions seen in the atom maps for both Pd and Pd@Au nanoparticles could be mostly ascribed to local variations in chemical composition and elemental evaporation fields. The evaporation field values for Pd and N","authors_text":"Chang-Min Kwak, Constantinos Hatzoglou, Francois Vurpillot, Jae-Bok Seol, Jae-Pyoung Ahn, Kyuseon Jang, Phil Woong Kang, Pyuck-Pa Choi, Se-Ho Kim","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-02-10T15:33:57Z","title":"Characterization of Pd and Pd@Au core-shell nanoparticles using atom probe tomography and field evaporation simulation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.08303","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:aa924c6f6d7848ecdbce85055352d8e0c9a53f06474f1391890c5f759161aea8","target":"record","created_at":"2026-07-05T02:15:48Z","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":"4e5d8a7866155f2959fd847623207ba8311a362f3a7a6867a8a93ec21c212cd6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-02-10T15:33:57Z","title_canon_sha256":"e6eb969276f0ddb45f00e251708b46f2ce8be02d261a8a5539156aa265a796df"},"schema_version":"1.0","source":{"id":"2102.08303","kind":"arxiv","version":1}},"canonical_sha256":"1c3acfda3fa21b62f29722b46507c98d7b45b9ae94948e7ca47d5196722bb23d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1c3acfda3fa21b62f29722b46507c98d7b45b9ae94948e7ca47d5196722bb23d","first_computed_at":"2026-07-05T02:15:48.322561Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:15:48.322561Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QCDwGX0ghND7B3a+Da/5o/Jxn6rVe6KPJ7luKT3Mnc5IeOz+d3FF6X1erit0w0Pz7iTyvOALzEZL8bApvNCKBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:15:48.323034Z","signed_message":"canonical_sha256_bytes"},"source_id":"2102.08303","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aa924c6f6d7848ecdbce85055352d8e0c9a53f06474f1391890c5f759161aea8","sha256:df3fe0f7789d7d5554bef0e041e287d7eb8fca5f21fca6b3020acb787e413e76"],"state_sha256":"45bc674ea8d2519aaa11207ded03363898c0eb98f3932e4d2e00f655bcae0a2a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bvVGic/XbgUZE8U9yARB3OYMyVWqUWpa0yane0WY4bZsFFX8t7nUASgoLES1Xh5Axmq1BkZHhmqkXhNU9k4RCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T07:34:50.013094Z","bundle_sha256":"241c8ada2e4958afea93ca965873e7f90df8de58f92dd7fe60ceed704f6d70f6"}}