{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:JBJA7JXRLCN4I7X7GCTVTNDSXM","short_pith_number":"pith:JBJA7JXR","canonical_record":{"source":{"id":"2310.05289","kind":"arxiv","version":4},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2023-10-08T21:31:32Z","cross_cats_sorted":[],"title_canon_sha256":"a7e95f5511d38324f087e1403b386a3a02df29167eb005251d2054847099c1b1","abstract_canon_sha256":"2f49474c9bb3ecdf30ddd8dbb0ba93dd56fa83726f906b875581812c1deddb70"},"schema_version":"1.0"},"canonical_sha256":"48520fa6f1589bc47eff30a759b472bb1e70220e905ae85ea54808bc1568c9a1","source":{"kind":"arxiv","id":"2310.05289","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2310.05289","created_at":"2026-07-05T07:22:24Z"},{"alias_kind":"arxiv_version","alias_value":"2310.05289v4","created_at":"2026-07-05T07:22:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2310.05289","created_at":"2026-07-05T07:22:24Z"},{"alias_kind":"pith_short_12","alias_value":"JBJA7JXRLCN4","created_at":"2026-07-05T07:22:24Z"},{"alias_kind":"pith_short_16","alias_value":"JBJA7JXRLCN4I7X7","created_at":"2026-07-05T07:22:24Z"},{"alias_kind":"pith_short_8","alias_value":"JBJA7JXR","created_at":"2026-07-05T07:22:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:JBJA7JXRLCN4I7X7GCTVTNDSXM","target":"record","payload":{"canonical_record":{"source":{"id":"2310.05289","kind":"arxiv","version":4},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2023-10-08T21:31:32Z","cross_cats_sorted":[],"title_canon_sha256":"a7e95f5511d38324f087e1403b386a3a02df29167eb005251d2054847099c1b1","abstract_canon_sha256":"2f49474c9bb3ecdf30ddd8dbb0ba93dd56fa83726f906b875581812c1deddb70"},"schema_version":"1.0"},"canonical_sha256":"48520fa6f1589bc47eff30a759b472bb1e70220e905ae85ea54808bc1568c9a1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:22:24.282251Z","signature_b64":"Wqa4PAomE4DQGYgibDMtxKHsNxf2F9g8dy8Uv/t0H8fOj1dyeFakuxzyY/oXfUaDtEZ35gZ+7MaIoBE8kzuhCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"48520fa6f1589bc47eff30a759b472bb1e70220e905ae85ea54808bc1568c9a1","last_reissued_at":"2026-07-05T07:22:24.281773Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:22:24.281773Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2310.05289","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":"2026-07-05T07:22:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jhJeQrUmhSAMIkGT2LB94riZ3CyivmIcydQ1I5cvtT5PD0J1MhLSj+FSz2F3xhlKQj75UN6CAyINhYp3yAjuCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:56:14.291675Z"},"content_sha256":"130dba29abbb0b462a032fec40842b3799fbccbd11599d22a0a87ab1d264c35b","schema_version":"1.0","event_id":"sha256:130dba29abbb0b462a032fec40842b3799fbccbd11599d22a0a87ab1d264c35b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:JBJA7JXRLCN4I7X7GCTVTNDSXM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Inference of highly time-resolved melt pool visual characteristics and spatially-dependent lack-of-fusion defects in laser powder bed fusion using acoustic and thermal emission data","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.app-ph","authors_text":"Anthony D. Rollett, Brandon Abranovic, Christian Gobert, Haolin Liu, Hongrui Chen, Jack L. Beuth, Kevin Ferguson, Levent Burak Kara","submitted_at":"2023-10-08T21:31:32Z","abstract_excerpt":"With a growing demand for high-quality fabrication, the interest in real-time process and defect monitoring of laser powder bed fusion (LPBF) has increased, leading manufacturers to incorporate a variety of online sensing methods including acoustic sensing, photodiode sensing, and high-speed imaging. However, real-time acquisition of high-resolution melt pool images in particular remains computationally demanding in practice due to the high variability of melt pool morphologies and the limitation of data caching and transfer, making it challenging to detect the local lack-of-fusion (LOF) defec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2310.05289","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2310.05289/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":"2026-07-05T07:22:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5e/acvQ5FxyxiBKo6HbDN04gjJis/CKkryCrT7Bgpqgvfae2kADo4ifAO8s6i3NL2FG398aLAve5l6rFnRtIBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:56:14.292197Z"},"content_sha256":"ce99f437d04f9671e40df16ea670554bf4fbcc1bdd1b6df62ac7ff10484bb833","schema_version":"1.0","event_id":"sha256:ce99f437d04f9671e40df16ea670554bf4fbcc1bdd1b6df62ac7ff10484bb833"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JBJA7JXRLCN4I7X7GCTVTNDSXM/bundle.json","state_url":"https://pith.science/pith/JBJA7JXRLCN4I7X7GCTVTNDSXM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JBJA7JXRLCN4I7X7GCTVTNDSXM/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":"2026-08-03T17:56:14Z","links":{"resolver":"https://pith.science/pith/JBJA7JXRLCN4I7X7GCTVTNDSXM","bundle":"https://pith.science/pith/JBJA7JXRLCN4I7X7GCTVTNDSXM/bundle.json","state":"https://pith.science/pith/JBJA7JXRLCN4I7X7GCTVTNDSXM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JBJA7JXRLCN4I7X7GCTVTNDSXM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:JBJA7JXRLCN4I7X7GCTVTNDSXM","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":"2f49474c9bb3ecdf30ddd8dbb0ba93dd56fa83726f906b875581812c1deddb70","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2023-10-08T21:31:32Z","title_canon_sha256":"a7e95f5511d38324f087e1403b386a3a02df29167eb005251d2054847099c1b1"},"schema_version":"1.0","source":{"id":"2310.05289","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2310.05289","created_at":"2026-07-05T07:22:24Z"},{"alias_kind":"arxiv_version","alias_value":"2310.05289v4","created_at":"2026-07-05T07:22:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2310.05289","created_at":"2026-07-05T07:22:24Z"},{"alias_kind":"pith_short_12","alias_value":"JBJA7JXRLCN4","created_at":"2026-07-05T07:22:24Z"},{"alias_kind":"pith_short_16","alias_value":"JBJA7JXRLCN4I7X7","created_at":"2026-07-05T07:22:24Z"},{"alias_kind":"pith_short_8","alias_value":"JBJA7JXR","created_at":"2026-07-05T07:22:24Z"}],"graph_snapshots":[{"event_id":"sha256:ce99f437d04f9671e40df16ea670554bf4fbcc1bdd1b6df62ac7ff10484bb833","target":"graph","created_at":"2026-07-05T07:22:24Z","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/2310.05289/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"With a growing demand for high-quality fabrication, the interest in real-time process and defect monitoring of laser powder bed fusion (LPBF) has increased, leading manufacturers to incorporate a variety of online sensing methods including acoustic sensing, photodiode sensing, and high-speed imaging. However, real-time acquisition of high-resolution melt pool images in particular remains computationally demanding in practice due to the high variability of melt pool morphologies and the limitation of data caching and transfer, making it challenging to detect the local lack-of-fusion (LOF) defec","authors_text":"Anthony D. Rollett, Brandon Abranovic, Christian Gobert, Haolin Liu, Hongrui Chen, Jack L. Beuth, Kevin Ferguson, Levent Burak Kara","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2023-10-08T21:31:32Z","title":"Inference of highly time-resolved melt pool visual characteristics and spatially-dependent lack-of-fusion defects in laser powder bed fusion using acoustic and thermal emission data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2310.05289","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":"sha256:130dba29abbb0b462a032fec40842b3799fbccbd11599d22a0a87ab1d264c35b","target":"record","created_at":"2026-07-05T07:22:24Z","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":"2f49474c9bb3ecdf30ddd8dbb0ba93dd56fa83726f906b875581812c1deddb70","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2023-10-08T21:31:32Z","title_canon_sha256":"a7e95f5511d38324f087e1403b386a3a02df29167eb005251d2054847099c1b1"},"schema_version":"1.0","source":{"id":"2310.05289","kind":"arxiv","version":4}},"canonical_sha256":"48520fa6f1589bc47eff30a759b472bb1e70220e905ae85ea54808bc1568c9a1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"48520fa6f1589bc47eff30a759b472bb1e70220e905ae85ea54808bc1568c9a1","first_computed_at":"2026-07-05T07:22:24.281773Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:22:24.281773Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Wqa4PAomE4DQGYgibDMtxKHsNxf2F9g8dy8Uv/t0H8fOj1dyeFakuxzyY/oXfUaDtEZ35gZ+7MaIoBE8kzuhCA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:22:24.282251Z","signed_message":"canonical_sha256_bytes"},"source_id":"2310.05289","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:130dba29abbb0b462a032fec40842b3799fbccbd11599d22a0a87ab1d264c35b","sha256:ce99f437d04f9671e40df16ea670554bf4fbcc1bdd1b6df62ac7ff10484bb833"],"state_sha256":"77141b756bf52c0510bdc8d5e2efe1ba945f14d9dcce7f7142ae1305da95f127"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yI+8TP2zOzBjRoU5ZlLN1qa8lYU6wk7AwZsk+8Nx4if8LTF98vv02Af57oziMZ1L5dL5Z2axrYrqxHAv/vGiAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T17:56:14.295685Z","bundle_sha256":"a4c524e55cb41ae86582b0d5a723772b46b889f7290e103e1a385dec541e7ab3"}}