{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:753AGXCQEF7IPPNPKYXWZ3FVAR","short_pith_number":"pith:753AGXCQ","canonical_record":{"source":{"id":"2310.02709","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-10-04T10:25:53Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"f9afae7083af17063439c8ff7b47dd462e735e82655c587d5e18a507a5c0b251","abstract_canon_sha256":"8358ecb3c84f1ad14ff769e6674b2e075d85f707df6d527d8abea6ba5a879bf8"},"schema_version":"1.0"},"canonical_sha256":"ff76035c50217e87bdaf562f6cecb504601960d02b0ee9744866742ec97e68c6","source":{"kind":"arxiv","id":"2310.02709","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2310.02709","created_at":"2026-07-05T09:03:48Z"},{"alias_kind":"arxiv_version","alias_value":"2310.02709v2","created_at":"2026-07-05T09:03:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2310.02709","created_at":"2026-07-05T09:03:48Z"},{"alias_kind":"pith_short_12","alias_value":"753AGXCQEF7I","created_at":"2026-07-05T09:03:48Z"},{"alias_kind":"pith_short_16","alias_value":"753AGXCQEF7IPPNP","created_at":"2026-07-05T09:03:48Z"},{"alias_kind":"pith_short_8","alias_value":"753AGXCQ","created_at":"2026-07-05T09:03:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:753AGXCQEF7IPPNPKYXWZ3FVAR","target":"record","payload":{"canonical_record":{"source":{"id":"2310.02709","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-10-04T10:25:53Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"f9afae7083af17063439c8ff7b47dd462e735e82655c587d5e18a507a5c0b251","abstract_canon_sha256":"8358ecb3c84f1ad14ff769e6674b2e075d85f707df6d527d8abea6ba5a879bf8"},"schema_version":"1.0"},"canonical_sha256":"ff76035c50217e87bdaf562f6cecb504601960d02b0ee9744866742ec97e68c6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:03:48.091786Z","signature_b64":"W+gG7o56mqgCqWgXtqLNmVUp+lz80jHXQSPhgQ8ZLHhRAdp24gwOUymnhc89EPKpq7aitLuNDgJi2MfxuJ45AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ff76035c50217e87bdaf562f6cecb504601960d02b0ee9744866742ec97e68c6","last_reissued_at":"2026-07-05T09:03:48.091433Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:03:48.091433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2310.02709","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T09:03:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VXJPq8oz0v3iMo98/5VXsw2PhDsgLuUNZLVUFr0I2EX7GWNYJUBuv0tEs4W+WYWJ1mwPyld6XwoPos3XOXRIDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T08:48:42.477115Z"},"content_sha256":"2598277fd46298ae09df5ba8c3d91af4c257b20e24527ec2b4e9042c046460ad","schema_version":"1.0","event_id":"sha256:2598277fd46298ae09df5ba8c3d91af4c257b20e24527ec2b4e9042c046460ad"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:753AGXCQEF7IPPNPKYXWZ3FVAR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nanotube spin defects for omnidirectional magnetic field sensing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Kunhong Shen, Peng Ju, Saakshi Dikshit, Shixiong Zhang, Sumukh Vaidya, Tongcang Li, Xingyu Gao, Yuanbin Jin","submitted_at":"2023-10-04T10:25:53Z","abstract_excerpt":"Optically addressable spin defects in three-dimensional (3D) crystals and two-dimensional (2D) van der Waals (vdW) materials are revolutionizing nanoscale quantum sensing. Spin defects in one-dimensional (1D) vdW nanotubes will provide unique opportunities due to their small sizes in two dimensions and absence of dangling bonds on side walls. However, optically detected magnetic resonance of localized spin defects in a nanotube has not been observed. Here, we report the observation of single spin color centers in boron nitride nanotubes (BNNTs) at room temperature. Our findings suggest that th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2310.02709","kind":"arxiv","version":2},"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/2310.02709/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":"2026-07-05T09:03:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KkTWbzs3tA/eZLxDnr5ANS07LUnScdNtlhxYupYbTuL+q16IMh1m+b2F1R2yMJFV4TqOZ2Mlrmz5144T4JCZBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T08:48:42.477614Z"},"content_sha256":"0a306a53e32cbae47a76a309dbb149b1cf0516f8f3acebcbe25b6d57c27e2178","schema_version":"1.0","event_id":"sha256:0a306a53e32cbae47a76a309dbb149b1cf0516f8f3acebcbe25b6d57c27e2178"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/753AGXCQEF7IPPNPKYXWZ3FVAR/bundle.json","state_url":"https://pith.science/pith/753AGXCQEF7IPPNPKYXWZ3FVAR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/753AGXCQEF7IPPNPKYXWZ3FVAR/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":"2026-08-04T08:48:42Z","links":{"resolver":"https://pith.science/pith/753AGXCQEF7IPPNPKYXWZ3FVAR","bundle":"https://pith.science/pith/753AGXCQEF7IPPNPKYXWZ3FVAR/bundle.json","state":"https://pith.science/pith/753AGXCQEF7IPPNPKYXWZ3FVAR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/753AGXCQEF7IPPNPKYXWZ3FVAR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:753AGXCQEF7IPPNPKYXWZ3FVAR","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":"8358ecb3c84f1ad14ff769e6674b2e075d85f707df6d527d8abea6ba5a879bf8","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-10-04T10:25:53Z","title_canon_sha256":"f9afae7083af17063439c8ff7b47dd462e735e82655c587d5e18a507a5c0b251"},"schema_version":"1.0","source":{"id":"2310.02709","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2310.02709","created_at":"2026-07-05T09:03:48Z"},{"alias_kind":"arxiv_version","alias_value":"2310.02709v2","created_at":"2026-07-05T09:03:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2310.02709","created_at":"2026-07-05T09:03:48Z"},{"alias_kind":"pith_short_12","alias_value":"753AGXCQEF7I","created_at":"2026-07-05T09:03:48Z"},{"alias_kind":"pith_short_16","alias_value":"753AGXCQEF7IPPNP","created_at":"2026-07-05T09:03:48Z"},{"alias_kind":"pith_short_8","alias_value":"753AGXCQ","created_at":"2026-07-05T09:03:48Z"}],"graph_snapshots":[{"event_id":"sha256:0a306a53e32cbae47a76a309dbb149b1cf0516f8f3acebcbe25b6d57c27e2178","target":"graph","created_at":"2026-07-05T09:03:48Z","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/2310.02709/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Optically addressable spin defects in three-dimensional (3D) crystals and two-dimensional (2D) van der Waals (vdW) materials are revolutionizing nanoscale quantum sensing. Spin defects in one-dimensional (1D) vdW nanotubes will provide unique opportunities due to their small sizes in two dimensions and absence of dangling bonds on side walls. However, optically detected magnetic resonance of localized spin defects in a nanotube has not been observed. Here, we report the observation of single spin color centers in boron nitride nanotubes (BNNTs) at room temperature. Our findings suggest that th","authors_text":"Kunhong Shen, Peng Ju, Saakshi Dikshit, Shixiong Zhang, Sumukh Vaidya, Tongcang Li, Xingyu Gao, Yuanbin Jin","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-10-04T10:25:53Z","title":"Nanotube spin defects for omnidirectional magnetic field sensing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2310.02709","kind":"arxiv","version":2},"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":"sha256:2598277fd46298ae09df5ba8c3d91af4c257b20e24527ec2b4e9042c046460ad","target":"record","created_at":"2026-07-05T09:03:48Z","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":"8358ecb3c84f1ad14ff769e6674b2e075d85f707df6d527d8abea6ba5a879bf8","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-10-04T10:25:53Z","title_canon_sha256":"f9afae7083af17063439c8ff7b47dd462e735e82655c587d5e18a507a5c0b251"},"schema_version":"1.0","source":{"id":"2310.02709","kind":"arxiv","version":2}},"canonical_sha256":"ff76035c50217e87bdaf562f6cecb504601960d02b0ee9744866742ec97e68c6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ff76035c50217e87bdaf562f6cecb504601960d02b0ee9744866742ec97e68c6","first_computed_at":"2026-07-05T09:03:48.091433Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:03:48.091433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"W+gG7o56mqgCqWgXtqLNmVUp+lz80jHXQSPhgQ8ZLHhRAdp24gwOUymnhc89EPKpq7aitLuNDgJi2MfxuJ45AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T09:03:48.091786Z","signed_message":"canonical_sha256_bytes"},"source_id":"2310.02709","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2598277fd46298ae09df5ba8c3d91af4c257b20e24527ec2b4e9042c046460ad","sha256:0a306a53e32cbae47a76a309dbb149b1cf0516f8f3acebcbe25b6d57c27e2178"],"state_sha256":"6e7a1617c2a444232745f8ef19c87e177a118e04128bb9af53b80d967a4d4e59"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pfFhVAfu4d69eNor5o+uDiyZNcpE/87NmRMZnuoStxJWM6pA8B5duJwHjkb9P4F+5n3aDdLmm33FRyDlyFpJBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T08:48:42.481360Z","bundle_sha256":"2270309a851e181bf0421faf3738dc4d1b0df562b53f72d94ea2d60af50e80a2"}}