{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:HFHJ4ROTX2YKCIHWMBDLPAA2IJ","short_pith_number":"pith:HFHJ4ROT","canonical_record":{"source":{"id":"1210.1349","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-10-04T09:29:12Z","cross_cats_sorted":[],"title_canon_sha256":"1408e667bdac25ebe3d48a53639479015b5911ec35d5ba55076114b3d8e813c7","abstract_canon_sha256":"65dd6024a7081d56a9b9889f6353592200b5f178ed468a5c94654e1e84cb754d"},"schema_version":"1.0"},"canonical_sha256":"394e9e45d3beb0a120f66046b7801a427d9d8ff673f601c63d8d2b6fd5908f39","source":{"kind":"arxiv","id":"1210.1349","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.1349","created_at":"2026-05-18T03:12:33Z"},{"alias_kind":"arxiv_version","alias_value":"1210.1349v1","created_at":"2026-05-18T03:12:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.1349","created_at":"2026-05-18T03:12:33Z"},{"alias_kind":"pith_short_12","alias_value":"HFHJ4ROTX2YK","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_16","alias_value":"HFHJ4ROTX2YKCIHW","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_8","alias_value":"HFHJ4ROT","created_at":"2026-05-18T12:27:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:HFHJ4ROTX2YKCIHWMBDLPAA2IJ","target":"record","payload":{"canonical_record":{"source":{"id":"1210.1349","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-10-04T09:29:12Z","cross_cats_sorted":[],"title_canon_sha256":"1408e667bdac25ebe3d48a53639479015b5911ec35d5ba55076114b3d8e813c7","abstract_canon_sha256":"65dd6024a7081d56a9b9889f6353592200b5f178ed468a5c94654e1e84cb754d"},"schema_version":"1.0"},"canonical_sha256":"394e9e45d3beb0a120f66046b7801a427d9d8ff673f601c63d8d2b6fd5908f39","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:12:33.266244Z","signature_b64":"oE+U2RRBCD+6qxq1itsuW8/EfzQYUnKA+FdHj4qMm+LkjwHREePyeS9XIDHXOR5e+tN5E/SbaLAw3LUPmJiKBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"394e9e45d3beb0a120f66046b7801a427d9d8ff673f601c63d8d2b6fd5908f39","last_reissued_at":"2026-05-18T03:12:33.265337Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:12:33.265337Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.1349","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":"2026-05-18T03:12:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qCCB98/npgRfeguzr9wPBbjVAtMf3t7n9TtkHGV9qPpkGGMwqrS9DOB4Eh3FivB8ARyr76jL0mNeh6SlvxWYCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T13:56:41.355268Z"},"content_sha256":"d4e43df584a118a2c20f8d2ec2b178ca8903ad28e2d1cd411937b13f342b6de5","schema_version":"1.0","event_id":"sha256:d4e43df584a118a2c20f8d2ec2b178ca8903ad28e2d1cd411937b13f342b6de5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:HFHJ4ROTX2YKCIHWMBDLPAA2IJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electron spin resonance and exchange paths in the orthorhombic dimer system Sr2VO4","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"A. Loidl, D. van der Marel, E. Giannini, H.-A. Krug von Nidda, J. Deisenhofer, J. Teyssier, M. Hemmida, M. V. Eremin, R. M. Eremina, R. Viennois, S. Schaile, Zhe Wang","submitted_at":"2012-10-04T09:29:12Z","abstract_excerpt":"We report on magnetization and electron spin resonance (ESR) measurements of Sr$_{2}$VO$_4$ with orthorhombic symmetry. In this dimer system the $V^{4+}$ ions are in tetrahedral environment and are coupled by an antiferromagnetic intra-dimer exchange constant $J/k_B \\approx$ 100 K to form a singlet ground state without any phase transitions between room temperature and 2 K. Based on an extended-H\\\"{u}ckel-Tight-Binding analysis we identify the strongest exchange interaction to occur between two inequivalent vanadium sites via two intermediate oxygen ions. The ESR absorption spectra can be well"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.1349","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":""},"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":"2026-05-18T03:12:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a6UHh1eEzqECgYbJ7O+NogaQwmCmz/+Csd9NjkicQQqh3OHRrop9w0se42l7sqI4TsYbEKO8KI7JBu0s/I1nBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T13:56:41.355665Z"},"content_sha256":"2acda4e8751b359fd177210828ddd080bb674f7452c75ea9d1b5e3ade6c28c45","schema_version":"1.0","event_id":"sha256:2acda4e8751b359fd177210828ddd080bb674f7452c75ea9d1b5e3ade6c28c45"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HFHJ4ROTX2YKCIHWMBDLPAA2IJ/bundle.json","state_url":"https://pith.science/pith/HFHJ4ROTX2YKCIHWMBDLPAA2IJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HFHJ4ROTX2YKCIHWMBDLPAA2IJ/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":"2026-05-28T13:56:41Z","links":{"resolver":"https://pith.science/pith/HFHJ4ROTX2YKCIHWMBDLPAA2IJ","bundle":"https://pith.science/pith/HFHJ4ROTX2YKCIHWMBDLPAA2IJ/bundle.json","state":"https://pith.science/pith/HFHJ4ROTX2YKCIHWMBDLPAA2IJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HFHJ4ROTX2YKCIHWMBDLPAA2IJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:HFHJ4ROTX2YKCIHWMBDLPAA2IJ","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":"65dd6024a7081d56a9b9889f6353592200b5f178ed468a5c94654e1e84cb754d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-10-04T09:29:12Z","title_canon_sha256":"1408e667bdac25ebe3d48a53639479015b5911ec35d5ba55076114b3d8e813c7"},"schema_version":"1.0","source":{"id":"1210.1349","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.1349","created_at":"2026-05-18T03:12:33Z"},{"alias_kind":"arxiv_version","alias_value":"1210.1349v1","created_at":"2026-05-18T03:12:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.1349","created_at":"2026-05-18T03:12:33Z"},{"alias_kind":"pith_short_12","alias_value":"HFHJ4ROTX2YK","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_16","alias_value":"HFHJ4ROTX2YKCIHW","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_8","alias_value":"HFHJ4ROT","created_at":"2026-05-18T12:27:09Z"}],"graph_snapshots":[{"event_id":"sha256:2acda4e8751b359fd177210828ddd080bb674f7452c75ea9d1b5e3ade6c28c45","target":"graph","created_at":"2026-05-18T03:12:33Z","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"},"paper":{"abstract_excerpt":"We report on magnetization and electron spin resonance (ESR) measurements of Sr$_{2}$VO$_4$ with orthorhombic symmetry. In this dimer system the $V^{4+}$ ions are in tetrahedral environment and are coupled by an antiferromagnetic intra-dimer exchange constant $J/k_B \\approx$ 100 K to form a singlet ground state without any phase transitions between room temperature and 2 K. Based on an extended-H\\\"{u}ckel-Tight-Binding analysis we identify the strongest exchange interaction to occur between two inequivalent vanadium sites via two intermediate oxygen ions. The ESR absorption spectra can be well","authors_text":"A. Loidl, D. van der Marel, E. Giannini, H.-A. Krug von Nidda, J. Deisenhofer, J. Teyssier, M. Hemmida, M. V. Eremin, R. M. Eremina, R. Viennois, S. Schaile, Zhe Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-10-04T09:29:12Z","title":"Electron spin resonance and exchange paths in the orthorhombic dimer system Sr2VO4"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.1349","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:d4e43df584a118a2c20f8d2ec2b178ca8903ad28e2d1cd411937b13f342b6de5","target":"record","created_at":"2026-05-18T03:12:33Z","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":"65dd6024a7081d56a9b9889f6353592200b5f178ed468a5c94654e1e84cb754d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-10-04T09:29:12Z","title_canon_sha256":"1408e667bdac25ebe3d48a53639479015b5911ec35d5ba55076114b3d8e813c7"},"schema_version":"1.0","source":{"id":"1210.1349","kind":"arxiv","version":1}},"canonical_sha256":"394e9e45d3beb0a120f66046b7801a427d9d8ff673f601c63d8d2b6fd5908f39","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"394e9e45d3beb0a120f66046b7801a427d9d8ff673f601c63d8d2b6fd5908f39","first_computed_at":"2026-05-18T03:12:33.265337Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:12:33.265337Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oE+U2RRBCD+6qxq1itsuW8/EfzQYUnKA+FdHj4qMm+LkjwHREePyeS9XIDHXOR5e+tN5E/SbaLAw3LUPmJiKBw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:12:33.266244Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.1349","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d4e43df584a118a2c20f8d2ec2b178ca8903ad28e2d1cd411937b13f342b6de5","sha256:2acda4e8751b359fd177210828ddd080bb674f7452c75ea9d1b5e3ade6c28c45"],"state_sha256":"b9e8f1c67bf2841ee9b7bbe6a074ff08d52442dfbd103367683dc00e2a4cb017"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZkjSMZSXgT6Vm3xegQbq3RAIlKg955BEsXFliqRvQtR/zup5Rie6QgaxcYpVwwEdF7LUUecxeCC7hbTqUdH/Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T13:56:41.357761Z","bundle_sha256":"a972231739957eed9bbe7d5e844e1a806f8ce87dd46b1d457438eecb13fc1139"}}