{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:FLVOKDVFNL46OUQB53AE6X3QUQ","short_pith_number":"pith:FLVOKDVF","canonical_record":{"source":{"id":"2605.29550","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-05-28T08:03:02Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"733a90c0c55676de062e88d8b44d9a67f811f512c53575bd03a852cc20c79953","abstract_canon_sha256":"667d94b5a392c82771e1b708e4b71d327d685a6c8ab2831871c579a1cf6dcb15"},"schema_version":"1.0"},"canonical_sha256":"2aeae50ea56af9e75201eec04f5f70a4235ab8904286c67a932491e69005788b","source":{"kind":"arxiv","id":"2605.29550","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.29550","created_at":"2026-05-29T01:05:46Z"},{"alias_kind":"arxiv_version","alias_value":"2605.29550v1","created_at":"2026-05-29T01:05:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.29550","created_at":"2026-05-29T01:05:46Z"},{"alias_kind":"pith_short_12","alias_value":"FLVOKDVFNL46","created_at":"2026-05-29T01:05:46Z"},{"alias_kind":"pith_short_16","alias_value":"FLVOKDVFNL46OUQB","created_at":"2026-05-29T01:05:46Z"},{"alias_kind":"pith_short_8","alias_value":"FLVOKDVF","created_at":"2026-05-29T01:05:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:FLVOKDVFNL46OUQB53AE6X3QUQ","target":"record","payload":{"canonical_record":{"source":{"id":"2605.29550","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-05-28T08:03:02Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"733a90c0c55676de062e88d8b44d9a67f811f512c53575bd03a852cc20c79953","abstract_canon_sha256":"667d94b5a392c82771e1b708e4b71d327d685a6c8ab2831871c579a1cf6dcb15"},"schema_version":"1.0"},"canonical_sha256":"2aeae50ea56af9e75201eec04f5f70a4235ab8904286c67a932491e69005788b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-29T01:05:46.661268Z","signature_b64":"qUrO9McJiZJVIXcZMHvWBNC8wSfvbmKWrBrtB6jKwDRmN2Cx+PRxTuFJqpA7bi5oY+65CBE3QR5EyD3Y986sAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2aeae50ea56af9e75201eec04f5f70a4235ab8904286c67a932491e69005788b","last_reissued_at":"2026-05-29T01:05:46.660426Z","signature_status":"signed_v1","first_computed_at":"2026-05-29T01:05:46.660426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.29550","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":"2026-05-29T01:05:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cT65YYPiPF0AuAeabmb571JNwBGm68EMS9e28UcYbu2QxJe/vkxGMZUmja9dlfR4uCQacktORvFqPzHdBRxlCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T20:44:10.473137Z"},"content_sha256":"83df7ecd01d82be2e9fc2611dfdab50a7f04bd1506d12dfe7ccf3f089254dfa4","schema_version":"1.0","event_id":"sha256:83df7ecd01d82be2e9fc2611dfdab50a7f04bd1506d12dfe7ccf3f089254dfa4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:FLVOKDVFNL46OUQB53AE6X3QUQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nanoparticle manipulation with a carbon fiber tip in an electron microscope for $\\mu$-SQUID magnetometry","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"cond-mat.mes-hall","authors_text":"Anjan Kumar Gupta, Clemens B. Winkelmann, Herv\\'e Courtois, Sumanta Maity, Umesh Chandra Thuwal","submitted_at":"2026-05-28T08:03:02Z","abstract_excerpt":"We report a carbon-fiber-tip based nanomanipulation system integrated into a scanning electron microscope for individual nanoparticle (NP) manipulation on a surface. Electrochemically etched amorphous carbon fiber tips with excellent mechanical rigidity and sub-100 nm apex radii effectively reduce the van der Waals adhesion and enable reliable positioning of about 100 nm size NPs with about 100 nm precision. This system combines a piezoelectric bimorph for vertical tip motion, a four-quadrant piezo-tube for two-dimensional fine tip control and a two-dimensional piezoelectric walker for coarse "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.29550","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/2605.29550/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":"2026-05-29T01:05:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1VdGtrusQLDp4PeryXMf3lgAZ9YcUeoD45aLtE8PurA2K455dlr6J+xMQM0wQWKJb1KPPFReJCXA1xPh1scaDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T20:44:10.473849Z"},"content_sha256":"7d5733de8c981775802bb8277799e28d7c4e546b0f5ca133b156cc190b310b6a","schema_version":"1.0","event_id":"sha256:7d5733de8c981775802bb8277799e28d7c4e546b0f5ca133b156cc190b310b6a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FLVOKDVFNL46OUQB53AE6X3QUQ/bundle.json","state_url":"https://pith.science/pith/FLVOKDVFNL46OUQB53AE6X3QUQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FLVOKDVFNL46OUQB53AE6X3QUQ/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":"2026-06-07T20:44:10Z","links":{"resolver":"https://pith.science/pith/FLVOKDVFNL46OUQB53AE6X3QUQ","bundle":"https://pith.science/pith/FLVOKDVFNL46OUQB53AE6X3QUQ/bundle.json","state":"https://pith.science/pith/FLVOKDVFNL46OUQB53AE6X3QUQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FLVOKDVFNL46OUQB53AE6X3QUQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:FLVOKDVFNL46OUQB53AE6X3QUQ","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":"667d94b5a392c82771e1b708e4b71d327d685a6c8ab2831871c579a1cf6dcb15","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-05-28T08:03:02Z","title_canon_sha256":"733a90c0c55676de062e88d8b44d9a67f811f512c53575bd03a852cc20c79953"},"schema_version":"1.0","source":{"id":"2605.29550","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.29550","created_at":"2026-05-29T01:05:46Z"},{"alias_kind":"arxiv_version","alias_value":"2605.29550v1","created_at":"2026-05-29T01:05:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.29550","created_at":"2026-05-29T01:05:46Z"},{"alias_kind":"pith_short_12","alias_value":"FLVOKDVFNL46","created_at":"2026-05-29T01:05:46Z"},{"alias_kind":"pith_short_16","alias_value":"FLVOKDVFNL46OUQB","created_at":"2026-05-29T01:05:46Z"},{"alias_kind":"pith_short_8","alias_value":"FLVOKDVF","created_at":"2026-05-29T01:05:46Z"}],"graph_snapshots":[{"event_id":"sha256:7d5733de8c981775802bb8277799e28d7c4e546b0f5ca133b156cc190b310b6a","target":"graph","created_at":"2026-05-29T01:05:46Z","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/2605.29550/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report a carbon-fiber-tip based nanomanipulation system integrated into a scanning electron microscope for individual nanoparticle (NP) manipulation on a surface. Electrochemically etched amorphous carbon fiber tips with excellent mechanical rigidity and sub-100 nm apex radii effectively reduce the van der Waals adhesion and enable reliable positioning of about 100 nm size NPs with about 100 nm precision. This system combines a piezoelectric bimorph for vertical tip motion, a four-quadrant piezo-tube for two-dimensional fine tip control and a two-dimensional piezoelectric walker for coarse ","authors_text":"Anjan Kumar Gupta, Clemens B. Winkelmann, Herv\\'e Courtois, Sumanta Maity, Umesh Chandra Thuwal","cross_cats":["physics.ins-det"],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-05-28T08:03:02Z","title":"Nanoparticle manipulation with a carbon fiber tip in an electron microscope for $\\mu$-SQUID magnetometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.29550","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":"sha256:83df7ecd01d82be2e9fc2611dfdab50a7f04bd1506d12dfe7ccf3f089254dfa4","target":"record","created_at":"2026-05-29T01:05:46Z","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":"667d94b5a392c82771e1b708e4b71d327d685a6c8ab2831871c579a1cf6dcb15","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-05-28T08:03:02Z","title_canon_sha256":"733a90c0c55676de062e88d8b44d9a67f811f512c53575bd03a852cc20c79953"},"schema_version":"1.0","source":{"id":"2605.29550","kind":"arxiv","version":1}},"canonical_sha256":"2aeae50ea56af9e75201eec04f5f70a4235ab8904286c67a932491e69005788b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2aeae50ea56af9e75201eec04f5f70a4235ab8904286c67a932491e69005788b","first_computed_at":"2026-05-29T01:05:46.660426Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-29T01:05:46.660426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qUrO9McJiZJVIXcZMHvWBNC8wSfvbmKWrBrtB6jKwDRmN2Cx+PRxTuFJqpA7bi5oY+65CBE3QR5EyD3Y986sAw==","signature_status":"signed_v1","signed_at":"2026-05-29T01:05:46.661268Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.29550","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:83df7ecd01d82be2e9fc2611dfdab50a7f04bd1506d12dfe7ccf3f089254dfa4","sha256:7d5733de8c981775802bb8277799e28d7c4e546b0f5ca133b156cc190b310b6a"],"state_sha256":"041122f98a5858791c1d3f4ab3a6896d37bb2749bdf067bb06c9317407290269"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EOfrQ3k51LLrWi6JemzgURz7GGuIsJ5mjLuAw7cZyKBz/07qDgjTTCt0snK7y1yCJz/huqHxilser7D5LXvaBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T20:44:10.477671Z","bundle_sha256":"1b99038c69747878d9cbf5623d947260c8cbd1cad59dce64e3dbc75ffbb4dca8"}}