{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:MH5LRIH3S5T5F6MRRWAFKF4U5U","short_pith_number":"pith:MH5LRIH3","canonical_record":{"source":{"id":"2606.27744","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-06-26T05:53:16Z","cross_cats_sorted":[],"title_canon_sha256":"a597a43cc2b779b8d6792a2d5b05b8585198956e3ee47d6d3506671f147ae61f","abstract_canon_sha256":"edfaf8690eea82d5304073cff29ddf8e9e2f693fbe148db435379197ee67c0cc"},"schema_version":"1.0"},"canonical_sha256":"61fab8a0fb9767d2f9918d80551794ed15f30aeeb35909c8cbda9ed6511c5bc3","source":{"kind":"arxiv","id":"2606.27744","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.27744","created_at":"2026-06-29T01:14:47Z"},{"alias_kind":"arxiv_version","alias_value":"2606.27744v1","created_at":"2026-06-29T01:14:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.27744","created_at":"2026-06-29T01:14:47Z"},{"alias_kind":"pith_short_12","alias_value":"MH5LRIH3S5T5","created_at":"2026-06-29T01:14:47Z"},{"alias_kind":"pith_short_16","alias_value":"MH5LRIH3S5T5F6MR","created_at":"2026-06-29T01:14:47Z"},{"alias_kind":"pith_short_8","alias_value":"MH5LRIH3","created_at":"2026-06-29T01:14:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:MH5LRIH3S5T5F6MRRWAFKF4U5U","target":"record","payload":{"canonical_record":{"source":{"id":"2606.27744","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-06-26T05:53:16Z","cross_cats_sorted":[],"title_canon_sha256":"a597a43cc2b779b8d6792a2d5b05b8585198956e3ee47d6d3506671f147ae61f","abstract_canon_sha256":"edfaf8690eea82d5304073cff29ddf8e9e2f693fbe148db435379197ee67c0cc"},"schema_version":"1.0"},"canonical_sha256":"61fab8a0fb9767d2f9918d80551794ed15f30aeeb35909c8cbda9ed6511c5bc3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-29T01:14:47.280147Z","signature_b64":"LFJbOzNqAKNshCT513D7FpEL43kAd5t9tYb4XTVsVQ/Ao3m4v/JKFvNcBwZOkhGgoF5NM6W2HoWgPXwzNHDOBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"61fab8a0fb9767d2f9918d80551794ed15f30aeeb35909c8cbda9ed6511c5bc3","last_reissued_at":"2026-06-29T01:14:47.279753Z","signature_status":"signed_v1","first_computed_at":"2026-06-29T01:14:47.279753Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.27744","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":"2026-06-29T01:14:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PjtSolXh/4ZrpozBdMDr2drpXMgPDYtzPsHOkDul+0cIonebekHWlQVo25sDixHEtElCyp8F94sY3AMz7LCnBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T03:49:24.696992Z"},"content_sha256":"4ff8bbe3f5a33dbd733305706531b211d5efa2ae54e43287eaa2e53d9ce7df69","schema_version":"1.0","event_id":"sha256:4ff8bbe3f5a33dbd733305706531b211d5efa2ae54e43287eaa2e53d9ce7df69"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:MH5LRIH3S5T5F6MRRWAFKF4U5U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Three-dimensional visualization of threading dislocation in GaN by polarized-light microscopy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Kazuki Ohnishi, Kisara Matsumoto, Yongzhao Yao, Yukari Ishikawa","submitted_at":"2026-06-26T05:53:16Z","abstract_excerpt":"We demonstrate high-throughput three-dimensional imaging of threading dislocations in ammonothermal GaN wafers using polarized-light microscopy with collimated LED illumination. Threading dislocations exhibited focal-depth-dependent in-plane shifts, enabling visualization of their three-dimensional inclination behavior over large areas. Synchrotron radiation X-ray topography indicated that dislocations with identical in-plane Burgers vector components tended to exhibit similar trace geometries and inclination directions. The threading dislocations were found to be tilted by approximately 3.3{\\"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.27744","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/2606.27744/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":"2026-06-29T01:14:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CQPcuDqNKRZpedZ+4vhoi94hLGdPDmcSpSOpyIOCyS+ZOVhF6wxU0OhkwFhRFf1PQdeOdVyMSiX6UfesXo91Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T03:49:24.697389Z"},"content_sha256":"76570749a35397ce0ac6fd05f3892f43e570bfe5a68147c1b605eb8750383de1","schema_version":"1.0","event_id":"sha256:76570749a35397ce0ac6fd05f3892f43e570bfe5a68147c1b605eb8750383de1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MH5LRIH3S5T5F6MRRWAFKF4U5U/bundle.json","state_url":"https://pith.science/pith/MH5LRIH3S5T5F6MRRWAFKF4U5U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MH5LRIH3S5T5F6MRRWAFKF4U5U/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":"2026-06-30T03:49:24Z","links":{"resolver":"https://pith.science/pith/MH5LRIH3S5T5F6MRRWAFKF4U5U","bundle":"https://pith.science/pith/MH5LRIH3S5T5F6MRRWAFKF4U5U/bundle.json","state":"https://pith.science/pith/MH5LRIH3S5T5F6MRRWAFKF4U5U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MH5LRIH3S5T5F6MRRWAFKF4U5U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:MH5LRIH3S5T5F6MRRWAFKF4U5U","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":"edfaf8690eea82d5304073cff29ddf8e9e2f693fbe148db435379197ee67c0cc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-06-26T05:53:16Z","title_canon_sha256":"a597a43cc2b779b8d6792a2d5b05b8585198956e3ee47d6d3506671f147ae61f"},"schema_version":"1.0","source":{"id":"2606.27744","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.27744","created_at":"2026-06-29T01:14:47Z"},{"alias_kind":"arxiv_version","alias_value":"2606.27744v1","created_at":"2026-06-29T01:14:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.27744","created_at":"2026-06-29T01:14:47Z"},{"alias_kind":"pith_short_12","alias_value":"MH5LRIH3S5T5","created_at":"2026-06-29T01:14:47Z"},{"alias_kind":"pith_short_16","alias_value":"MH5LRIH3S5T5F6MR","created_at":"2026-06-29T01:14:47Z"},{"alias_kind":"pith_short_8","alias_value":"MH5LRIH3","created_at":"2026-06-29T01:14:47Z"}],"graph_snapshots":[{"event_id":"sha256:76570749a35397ce0ac6fd05f3892f43e570bfe5a68147c1b605eb8750383de1","target":"graph","created_at":"2026-06-29T01:14:47Z","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/2606.27744/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We demonstrate high-throughput three-dimensional imaging of threading dislocations in ammonothermal GaN wafers using polarized-light microscopy with collimated LED illumination. Threading dislocations exhibited focal-depth-dependent in-plane shifts, enabling visualization of their three-dimensional inclination behavior over large areas. Synchrotron radiation X-ray topography indicated that dislocations with identical in-plane Burgers vector components tended to exhibit similar trace geometries and inclination directions. The threading dislocations were found to be tilted by approximately 3.3{\\","authors_text":"Kazuki Ohnishi, Kisara Matsumoto, Yongzhao Yao, Yukari Ishikawa","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-06-26T05:53:16Z","title":"Three-dimensional visualization of threading dislocation in GaN by polarized-light microscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.27744","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":"sha256:4ff8bbe3f5a33dbd733305706531b211d5efa2ae54e43287eaa2e53d9ce7df69","target":"record","created_at":"2026-06-29T01:14:47Z","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":"edfaf8690eea82d5304073cff29ddf8e9e2f693fbe148db435379197ee67c0cc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-06-26T05:53:16Z","title_canon_sha256":"a597a43cc2b779b8d6792a2d5b05b8585198956e3ee47d6d3506671f147ae61f"},"schema_version":"1.0","source":{"id":"2606.27744","kind":"arxiv","version":1}},"canonical_sha256":"61fab8a0fb9767d2f9918d80551794ed15f30aeeb35909c8cbda9ed6511c5bc3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"61fab8a0fb9767d2f9918d80551794ed15f30aeeb35909c8cbda9ed6511c5bc3","first_computed_at":"2026-06-29T01:14:47.279753Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-29T01:14:47.279753Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LFJbOzNqAKNshCT513D7FpEL43kAd5t9tYb4XTVsVQ/Ao3m4v/JKFvNcBwZOkhGgoF5NM6W2HoWgPXwzNHDOBg==","signature_status":"signed_v1","signed_at":"2026-06-29T01:14:47.280147Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.27744","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4ff8bbe3f5a33dbd733305706531b211d5efa2ae54e43287eaa2e53d9ce7df69","sha256:76570749a35397ce0ac6fd05f3892f43e570bfe5a68147c1b605eb8750383de1"],"state_sha256":"1bd4da39d51e4bebe53a6e8e11daf697fb63da66e471a9b3994a6a4fbbc7319d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X+fBNspgnKhAhYC80DPWG4nW3Yj+JgxxSsFDYJUsKOd7kxCuFHyCFcycOTzwcbgg843fNHrtNRH74VxYLwAoDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T03:49:24.699476Z","bundle_sha256":"9f890939887d00f4268cecfb6ff136140b6593c1eb364ce68c6b47871c065257"}}