{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:5AHWJVGHAJLNS34B7H2CHCJ3QX","short_pith_number":"pith:5AHWJVGH","canonical_record":{"source":{"id":"2207.01447","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-07-04T14:36:03Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"ce757b2e0ff46bc99fd7fdc9863d515580d13608b3bacdc9a0cb8cbc2a78e90e","abstract_canon_sha256":"4b2368165c674da1b74873d8bed2712844a0d2600148aee6b5961d9c1d8b6029"},"schema_version":"1.0"},"canonical_sha256":"e80f64d4c70256d96f81f9f423893b85d0ad176591519509faf2ba41dba47fd0","source":{"kind":"arxiv","id":"2207.01447","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.01447","created_at":"2026-07-05T04:37:12Z"},{"alias_kind":"arxiv_version","alias_value":"2207.01447v1","created_at":"2026-07-05T04:37:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.01447","created_at":"2026-07-05T04:37:12Z"},{"alias_kind":"pith_short_12","alias_value":"5AHWJVGHAJLN","created_at":"2026-07-05T04:37:12Z"},{"alias_kind":"pith_short_16","alias_value":"5AHWJVGHAJLNS34B","created_at":"2026-07-05T04:37:12Z"},{"alias_kind":"pith_short_8","alias_value":"5AHWJVGH","created_at":"2026-07-05T04:37:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:5AHWJVGHAJLNS34B7H2CHCJ3QX","target":"record","payload":{"canonical_record":{"source":{"id":"2207.01447","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-07-04T14:36:03Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"ce757b2e0ff46bc99fd7fdc9863d515580d13608b3bacdc9a0cb8cbc2a78e90e","abstract_canon_sha256":"4b2368165c674da1b74873d8bed2712844a0d2600148aee6b5961d9c1d8b6029"},"schema_version":"1.0"},"canonical_sha256":"e80f64d4c70256d96f81f9f423893b85d0ad176591519509faf2ba41dba47fd0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:37:12.093448Z","signature_b64":"WUKBwtEDqzyqfEGQ8UWeZJbtkzp7FSVMEmzWLQ4udspHno/KsJTBCku2+EXmlmHXzpGBs98B8Y34x4nRh1RBCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e80f64d4c70256d96f81f9f423893b85d0ad176591519509faf2ba41dba47fd0","last_reissued_at":"2026-07-05T04:37:12.092960Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:37:12.092960Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2207.01447","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":"2026-07-05T04:37:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OefraKyXEdM71EEDfdqimCoIU1jLyQABJJjLrpKKxIW1eC4MYGRb9EEgNaNmFYBCqj1vCX6nlSjN3wjv3YjIDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T01:29:48.340599Z"},"content_sha256":"17e4616bbb45c176313596cfd905296df9fe5cd2ff2150a28ef96384e8995d54","schema_version":"1.0","event_id":"sha256:17e4616bbb45c176313596cfd905296df9fe5cd2ff2150a28ef96384e8995d54"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:5AHWJVGHAJLNS34B7H2CHCJ3QX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"One-step exfoliation method for plasmonic activation of large-area 2D crystals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hong-Jun Gao, Jia-Qi Dai, Jun-Peng Lu, Lin Zhao, Long-Long Yang, Meng-Fan Zhou, Qiang Fu, Tai-Min Miao, Wei Ji, Wei-Jie Zhao, Xing-Jiang Zhou, Xin-Yu Huang, Xu Han, Ye-Liang Wang, Yuan Huang, Yu-Hao Pan, Yun-Yun Dai, Zhen-Hua Ni, Zhen-Yu Sun","submitted_at":"2022-07-04T14:36:03Z","abstract_excerpt":"Advanced exfoliation techniques are crucial for exploring the intrinsic properties and applications of 2D materials. Though the recently discovered Au-enhanced exfoliation technique provides an effective strategy for preparation of large-scale 2D crystals, the high cost of gold hinders this method from being widely adopted in industrial applications. In addition, direct Au contact could significantly quench photoluminescence (PL) emission in 2D semiconductors. It is therefore crucial to find alternative metals that can replace gold to achieve efficient exfoliation of 2D materials. Here, we pre"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.01447","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/2207.01447/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":"2026-07-05T04:37:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d/2iL6412xPh4x/cQ2aii1wpjFhjJQRQbnNt5CNCQXQejgA1ZEiDTz8vSJP7RsZCTpSEVTzOEFdnUe6rT2elBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T01:29:48.341206Z"},"content_sha256":"9773383c7a0074c49d0867612ac925012102388ae358bc6868cb100b7e41a21e","schema_version":"1.0","event_id":"sha256:9773383c7a0074c49d0867612ac925012102388ae358bc6868cb100b7e41a21e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5AHWJVGHAJLNS34B7H2CHCJ3QX/bundle.json","state_url":"https://pith.science/pith/5AHWJVGHAJLNS34B7H2CHCJ3QX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5AHWJVGHAJLNS34B7H2CHCJ3QX/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":"2026-08-07T01:29:48Z","links":{"resolver":"https://pith.science/pith/5AHWJVGHAJLNS34B7H2CHCJ3QX","bundle":"https://pith.science/pith/5AHWJVGHAJLNS34B7H2CHCJ3QX/bundle.json","state":"https://pith.science/pith/5AHWJVGHAJLNS34B7H2CHCJ3QX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5AHWJVGHAJLNS34B7H2CHCJ3QX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:5AHWJVGHAJLNS34B7H2CHCJ3QX","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":"4b2368165c674da1b74873d8bed2712844a0d2600148aee6b5961d9c1d8b6029","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-07-04T14:36:03Z","title_canon_sha256":"ce757b2e0ff46bc99fd7fdc9863d515580d13608b3bacdc9a0cb8cbc2a78e90e"},"schema_version":"1.0","source":{"id":"2207.01447","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.01447","created_at":"2026-07-05T04:37:12Z"},{"alias_kind":"arxiv_version","alias_value":"2207.01447v1","created_at":"2026-07-05T04:37:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.01447","created_at":"2026-07-05T04:37:12Z"},{"alias_kind":"pith_short_12","alias_value":"5AHWJVGHAJLN","created_at":"2026-07-05T04:37:12Z"},{"alias_kind":"pith_short_16","alias_value":"5AHWJVGHAJLNS34B","created_at":"2026-07-05T04:37:12Z"},{"alias_kind":"pith_short_8","alias_value":"5AHWJVGH","created_at":"2026-07-05T04:37:12Z"}],"graph_snapshots":[{"event_id":"sha256:9773383c7a0074c49d0867612ac925012102388ae358bc6868cb100b7e41a21e","target":"graph","created_at":"2026-07-05T04:37:12Z","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/2207.01447/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Advanced exfoliation techniques are crucial for exploring the intrinsic properties and applications of 2D materials. Though the recently discovered Au-enhanced exfoliation technique provides an effective strategy for preparation of large-scale 2D crystals, the high cost of gold hinders this method from being widely adopted in industrial applications. In addition, direct Au contact could significantly quench photoluminescence (PL) emission in 2D semiconductors. It is therefore crucial to find alternative metals that can replace gold to achieve efficient exfoliation of 2D materials. Here, we pre","authors_text":"Hong-Jun Gao, Jia-Qi Dai, Jun-Peng Lu, Lin Zhao, Long-Long Yang, Meng-Fan Zhou, Qiang Fu, Tai-Min Miao, Wei Ji, Wei-Jie Zhao, Xing-Jiang Zhou, Xin-Yu Huang, Xu Han, Ye-Liang Wang, Yuan Huang, Yu-Hao Pan, Yun-Yun Dai, Zhen-Hua Ni, Zhen-Yu Sun","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-07-04T14:36:03Z","title":"One-step exfoliation method for plasmonic activation of large-area 2D crystals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.01447","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":"sha256:17e4616bbb45c176313596cfd905296df9fe5cd2ff2150a28ef96384e8995d54","target":"record","created_at":"2026-07-05T04:37:12Z","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":"4b2368165c674da1b74873d8bed2712844a0d2600148aee6b5961d9c1d8b6029","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-07-04T14:36:03Z","title_canon_sha256":"ce757b2e0ff46bc99fd7fdc9863d515580d13608b3bacdc9a0cb8cbc2a78e90e"},"schema_version":"1.0","source":{"id":"2207.01447","kind":"arxiv","version":1}},"canonical_sha256":"e80f64d4c70256d96f81f9f423893b85d0ad176591519509faf2ba41dba47fd0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e80f64d4c70256d96f81f9f423893b85d0ad176591519509faf2ba41dba47fd0","first_computed_at":"2026-07-05T04:37:12.092960Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:37:12.092960Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WUKBwtEDqzyqfEGQ8UWeZJbtkzp7FSVMEmzWLQ4udspHno/KsJTBCku2+EXmlmHXzpGBs98B8Y34x4nRh1RBCg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:37:12.093448Z","signed_message":"canonical_sha256_bytes"},"source_id":"2207.01447","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:17e4616bbb45c176313596cfd905296df9fe5cd2ff2150a28ef96384e8995d54","sha256:9773383c7a0074c49d0867612ac925012102388ae358bc6868cb100b7e41a21e"],"state_sha256":"bc926ae6bb11e83a71765f10acd408253635aed20e14ca6a93382ffd3abc86fa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5bhrTJtMgKo5EH/ZCnJjxEB86bGhMHDzQCjDA1hwrUkvBU7Zlc8ThnwYBKiAcdTtGxS98IaRUuEApmIFBk2mDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T01:29:48.345985Z","bundle_sha256":"daf70b4dd128ed8d673267900dd3bfbdab35df4663ac5ca8329143fd34be97d7"}}