{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:JOHPMYLX4A7AYPJLPT523UVSMX","short_pith_number":"pith:JOHPMYLX","canonical_record":{"source":{"id":"2607.07747","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-08T08:56:18Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"9db0c4a3e20e7395a837e6ae6ab5f9cc0d0819db341703f223aa3909a9a41f63","abstract_canon_sha256":"3ed5e0eba157404cc2cc5ab7e3c44143dd5d6eb2fe86694d6e8d6e89175fd21f"},"schema_version":"1.0"},"canonical_sha256":"4b8ef66177e03e0c3d2b7cfbadd2b265e8d347ae55829bd961bf391a7df0df9d","source":{"kind":"arxiv","id":"2607.07747","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.07747","created_at":"2026-07-10T00:18:47Z"},{"alias_kind":"arxiv_version","alias_value":"2607.07747v1","created_at":"2026-07-10T00:18:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.07747","created_at":"2026-07-10T00:18:47Z"},{"alias_kind":"pith_short_12","alias_value":"JOHPMYLX4A7A","created_at":"2026-07-10T00:18:47Z"},{"alias_kind":"pith_short_16","alias_value":"JOHPMYLX4A7AYPJL","created_at":"2026-07-10T00:18:47Z"},{"alias_kind":"pith_short_8","alias_value":"JOHPMYLX","created_at":"2026-07-10T00:18:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:JOHPMYLX4A7AYPJLPT523UVSMX","target":"record","payload":{"canonical_record":{"source":{"id":"2607.07747","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-08T08:56:18Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"9db0c4a3e20e7395a837e6ae6ab5f9cc0d0819db341703f223aa3909a9a41f63","abstract_canon_sha256":"3ed5e0eba157404cc2cc5ab7e3c44143dd5d6eb2fe86694d6e8d6e89175fd21f"},"schema_version":"1.0"},"canonical_sha256":"4b8ef66177e03e0c3d2b7cfbadd2b265e8d347ae55829bd961bf391a7df0df9d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-10T00:18:47.779099Z","signature_b64":"N5e1nSHVx3SO9ucgdw3CSKiUHQz/dt1tDEXnRNO4izztDuMFJGV1+1D2lWtDxv30QL3huQNwoTfbQKSLmh+yBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4b8ef66177e03e0c3d2b7cfbadd2b265e8d347ae55829bd961bf391a7df0df9d","last_reissued_at":"2026-07-10T00:18:47.778696Z","signature_status":"signed_v1","first_computed_at":"2026-07-10T00:18:47.778696Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.07747","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":"2026-07-10T00:18:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1bZHpflJfZD/PdorrvIHcsGoiYqHN9tzY3jKCM3O+Ah8O7rYRQa+UIghrBa8mhM+PqpqnopobnjVcaZYYs7QBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T22:14:40.251618Z"},"content_sha256":"f077c77a341699aca4d4412d26f26e831b9028e8ba61da1ea9e2228de4d665af","schema_version":"1.0","event_id":"sha256:f077c77a341699aca4d4412d26f26e831b9028e8ba61da1ea9e2228de4d665af"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:JOHPMYLX4A7AYPJLPT523UVSMX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Second-harmonic signal in electric-field-modulated EPR spectra of Fe3 spin triangles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Athanassios K. Boudalis, Balwant Singh Chauhan, Filippo Troiani, Jason S. R. McCoombs, J\\'er\\^ome Robert, Jorge I. Hilari, Ratnamala Chatterjee","submitted_at":"2026-07-08T08:56:18Z","abstract_excerpt":"We present electric-field-modulated electron paramagnetic resonance (EFM-EPR) measurements on centrosymmetric single crystals of the molecular spin triangle $\\mathrm{[{Fe_3}O({O_2}CPh){_6}(py){_3}]ClO{_4}{\\cdot}py}$ ($\\bf{Fe_3}$). We provide the first observation of second harmonic EFM-EPR signal in polynuclear magnetic molecules. This signal is simulated and explained in terms of an electric-field induced modulation of the isotropic exchange in the molecule, and of their symmetry lowering resulting from a Jahn-Teller effect. Additionally, an unexpected first harmonic EFM-EPR signal is observe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.07747","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/2607.07747/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":"2026-07-10T00:18:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0cG7Nt5w6KF7+jCXXWexM3+pkkYn2+yQvBFPx2zikU9WtSXxea4D5tS1hohBJSRWmJJONxzyvxUlZwvEVaRtBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T22:14:40.252201Z"},"content_sha256":"a30dc6a8e22f114ffa5ded5dff29de68f1bb5dca19d4f75ab79db8222b1eddfe","schema_version":"1.0","event_id":"sha256:a30dc6a8e22f114ffa5ded5dff29de68f1bb5dca19d4f75ab79db8222b1eddfe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JOHPMYLX4A7AYPJLPT523UVSMX/bundle.json","state_url":"https://pith.science/pith/JOHPMYLX4A7AYPJLPT523UVSMX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JOHPMYLX4A7AYPJLPT523UVSMX/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":"2026-08-17T22:14:40Z","links":{"resolver":"https://pith.science/pith/JOHPMYLX4A7AYPJLPT523UVSMX","bundle":"https://pith.science/pith/JOHPMYLX4A7AYPJLPT523UVSMX/bundle.json","state":"https://pith.science/pith/JOHPMYLX4A7AYPJLPT523UVSMX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JOHPMYLX4A7AYPJLPT523UVSMX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:JOHPMYLX4A7AYPJLPT523UVSMX","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":"3ed5e0eba157404cc2cc5ab7e3c44143dd5d6eb2fe86694d6e8d6e89175fd21f","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-08T08:56:18Z","title_canon_sha256":"9db0c4a3e20e7395a837e6ae6ab5f9cc0d0819db341703f223aa3909a9a41f63"},"schema_version":"1.0","source":{"id":"2607.07747","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.07747","created_at":"2026-07-10T00:18:47Z"},{"alias_kind":"arxiv_version","alias_value":"2607.07747v1","created_at":"2026-07-10T00:18:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.07747","created_at":"2026-07-10T00:18:47Z"},{"alias_kind":"pith_short_12","alias_value":"JOHPMYLX4A7A","created_at":"2026-07-10T00:18:47Z"},{"alias_kind":"pith_short_16","alias_value":"JOHPMYLX4A7AYPJL","created_at":"2026-07-10T00:18:47Z"},{"alias_kind":"pith_short_8","alias_value":"JOHPMYLX","created_at":"2026-07-10T00:18:47Z"}],"graph_snapshots":[{"event_id":"sha256:a30dc6a8e22f114ffa5ded5dff29de68f1bb5dca19d4f75ab79db8222b1eddfe","target":"graph","created_at":"2026-07-10T00:18:47Z","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/2607.07747/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present electric-field-modulated electron paramagnetic resonance (EFM-EPR) measurements on centrosymmetric single crystals of the molecular spin triangle $\\mathrm{[{Fe_3}O({O_2}CPh){_6}(py){_3}]ClO{_4}{\\cdot}py}$ ($\\bf{Fe_3}$). We provide the first observation of second harmonic EFM-EPR signal in polynuclear magnetic molecules. This signal is simulated and explained in terms of an electric-field induced modulation of the isotropic exchange in the molecule, and of their symmetry lowering resulting from a Jahn-Teller effect. Additionally, an unexpected first harmonic EFM-EPR signal is observe","authors_text":"Athanassios K. Boudalis, Balwant Singh Chauhan, Filippo Troiani, Jason S. R. McCoombs, J\\'er\\^ome Robert, Jorge I. Hilari, Ratnamala Chatterjee","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-08T08:56:18Z","title":"Second-harmonic signal in electric-field-modulated EPR spectra of Fe3 spin triangles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.07747","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:f077c77a341699aca4d4412d26f26e831b9028e8ba61da1ea9e2228de4d665af","target":"record","created_at":"2026-07-10T00:18:47Z","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":"3ed5e0eba157404cc2cc5ab7e3c44143dd5d6eb2fe86694d6e8d6e89175fd21f","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-08T08:56:18Z","title_canon_sha256":"9db0c4a3e20e7395a837e6ae6ab5f9cc0d0819db341703f223aa3909a9a41f63"},"schema_version":"1.0","source":{"id":"2607.07747","kind":"arxiv","version":1}},"canonical_sha256":"4b8ef66177e03e0c3d2b7cfbadd2b265e8d347ae55829bd961bf391a7df0df9d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4b8ef66177e03e0c3d2b7cfbadd2b265e8d347ae55829bd961bf391a7df0df9d","first_computed_at":"2026-07-10T00:18:47.778696Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-10T00:18:47.778696Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N5e1nSHVx3SO9ucgdw3CSKiUHQz/dt1tDEXnRNO4izztDuMFJGV1+1D2lWtDxv30QL3huQNwoTfbQKSLmh+yBQ==","signature_status":"signed_v1","signed_at":"2026-07-10T00:18:47.779099Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.07747","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f077c77a341699aca4d4412d26f26e831b9028e8ba61da1ea9e2228de4d665af","sha256:a30dc6a8e22f114ffa5ded5dff29de68f1bb5dca19d4f75ab79db8222b1eddfe"],"state_sha256":"4dbfc9498f15e61dff03a5d1fe104d379eee7e082d56e6cf2f323e1adf5004ac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JuQjeq868xwCyc3hdXD6hyrxceuZGrbn7nmKpe2XEgJ3a+qfc693Ttk5cMNVMEyVDbiCN5DMdALyUL0mmo3WAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T22:14:40.259723Z","bundle_sha256":"df547a29ee3cb919eb9bd821b0c76f5aa05309c0cd6922c0211c6396cbf5ac75"}}