{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:4DO2QWC6V3FYEO5P3VR5GTJ37R","short_pith_number":"pith:4DO2QWC6","canonical_record":{"source":{"id":"1306.4269","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-06-18T17:07:28Z","cross_cats_sorted":[],"title_canon_sha256":"c2a127e39dcd595df8cab58fde24f16f7333834e7d071ca078f62ed86d662256","abstract_canon_sha256":"4d8f0851d016dd15f1f3fc1a9f33edbfd0b8326c1ea558eeb9432ef6a23141e3"},"schema_version":"1.0"},"canonical_sha256":"e0dda8585eaecb823bafdd63d34d3bfc6ca1ad613fb67f6e967c31d9121fa337","source":{"kind":"arxiv","id":"1306.4269","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.4269","created_at":"2026-05-18T03:20:36Z"},{"alias_kind":"arxiv_version","alias_value":"1306.4269v1","created_at":"2026-05-18T03:20:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.4269","created_at":"2026-05-18T03:20:36Z"},{"alias_kind":"pith_short_12","alias_value":"4DO2QWC6V3FY","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"4DO2QWC6V3FYEO5P","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"4DO2QWC6","created_at":"2026-05-18T12:27:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:4DO2QWC6V3FYEO5P3VR5GTJ37R","target":"record","payload":{"canonical_record":{"source":{"id":"1306.4269","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-06-18T17:07:28Z","cross_cats_sorted":[],"title_canon_sha256":"c2a127e39dcd595df8cab58fde24f16f7333834e7d071ca078f62ed86d662256","abstract_canon_sha256":"4d8f0851d016dd15f1f3fc1a9f33edbfd0b8326c1ea558eeb9432ef6a23141e3"},"schema_version":"1.0"},"canonical_sha256":"e0dda8585eaecb823bafdd63d34d3bfc6ca1ad613fb67f6e967c31d9121fa337","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:20:36.621427Z","signature_b64":"JmXOQP0ZIPwyBvMUQtgANw9elvwOdvuCtEulBB7MXro6RtJsG4D5J8DSwnT4PmvBe6wYqIUJweFzElH5g4nJDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e0dda8585eaecb823bafdd63d34d3bfc6ca1ad613fb67f6e967c31d9121fa337","last_reissued_at":"2026-05-18T03:20:36.620570Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:20:36.620570Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.4269","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":"2026-05-18T03:20:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DJmQsdVjOKy8Gk7eQ/BIU8H/UVEohYcq5yjGHw29zBQYgVBANyooYhIOWd9UGLF6O5t3iX2z8cOoG18dVJMyCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T18:01:50.399157Z"},"content_sha256":"405280fedffcde534906635f0ae17a02a8e7c0f0f5733f0f0ba977ea1fc79de2","schema_version":"1.0","event_id":"sha256:405280fedffcde534906635f0ae17a02a8e7c0f0f5733f0f0ba977ea1fc79de2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:4DO2QWC6V3FYEO5P3VR5GTJ37R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gapless spin liquid ground state in the S=1/2 vanadium oxyfluoride kagome antiferromagnet [NH4]2[C7H14N][V7O6F18]","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"1 P. Mendels, A. Harrison, F. Bert, F. H. Aidoudi, J.C. Orain, J. P. Attfield, J. S. Lord, L. Clark, M. A. de Vries, M. T. F. Telling, P. Bonville, P. Lightfoot, R. E. Morris","submitted_at":"2013-06-18T17:07:28Z","abstract_excerpt":"The vanadium oxyfluoride [NH4]2[C7H14N][V7O6F18] (DQVOF) is a geometrically frustrated magnetic bilayer material. The structure consists of S=1/2 kagome planes of V4+ d1 ions with S=1 V3+ d2 ions located between the kagome layers. Muon spin relaxation measurements demonstrate the absence of spin freezing down to 40 mK despite an energy scale of 60 K for antiferromagnetic exchange interactions. From magnetization and heat capacity measurements we conclude that the S=1 spins of the interplane V3+ ions are weakly coupled to the kagome layers, such that DQVOF can be viewed as an experimental model"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.4269","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":"2026-05-18T03:20:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ex4OiyymTq6Bs6o0LOyIVYe4OiL+x8e+gVBuPMs+70aTrCN+1r2VZpYd3zOsjHo2XiyeLBY+263C8F75H7CLCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T18:01:50.399517Z"},"content_sha256":"c418f67b2d598c6934ed281893370825695ceeed080680dab87b270294f9394d","schema_version":"1.0","event_id":"sha256:c418f67b2d598c6934ed281893370825695ceeed080680dab87b270294f9394d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4DO2QWC6V3FYEO5P3VR5GTJ37R/bundle.json","state_url":"https://pith.science/pith/4DO2QWC6V3FYEO5P3VR5GTJ37R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4DO2QWC6V3FYEO5P3VR5GTJ37R/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":"2026-06-01T18:01:50Z","links":{"resolver":"https://pith.science/pith/4DO2QWC6V3FYEO5P3VR5GTJ37R","bundle":"https://pith.science/pith/4DO2QWC6V3FYEO5P3VR5GTJ37R/bundle.json","state":"https://pith.science/pith/4DO2QWC6V3FYEO5P3VR5GTJ37R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4DO2QWC6V3FYEO5P3VR5GTJ37R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:4DO2QWC6V3FYEO5P3VR5GTJ37R","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":"4d8f0851d016dd15f1f3fc1a9f33edbfd0b8326c1ea558eeb9432ef6a23141e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-06-18T17:07:28Z","title_canon_sha256":"c2a127e39dcd595df8cab58fde24f16f7333834e7d071ca078f62ed86d662256"},"schema_version":"1.0","source":{"id":"1306.4269","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.4269","created_at":"2026-05-18T03:20:36Z"},{"alias_kind":"arxiv_version","alias_value":"1306.4269v1","created_at":"2026-05-18T03:20:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.4269","created_at":"2026-05-18T03:20:36Z"},{"alias_kind":"pith_short_12","alias_value":"4DO2QWC6V3FY","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"4DO2QWC6V3FYEO5P","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"4DO2QWC6","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:c418f67b2d598c6934ed281893370825695ceeed080680dab87b270294f9394d","target":"graph","created_at":"2026-05-18T03:20:36Z","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":"The vanadium oxyfluoride [NH4]2[C7H14N][V7O6F18] (DQVOF) is a geometrically frustrated magnetic bilayer material. The structure consists of S=1/2 kagome planes of V4+ d1 ions with S=1 V3+ d2 ions located between the kagome layers. Muon spin relaxation measurements demonstrate the absence of spin freezing down to 40 mK despite an energy scale of 60 K for antiferromagnetic exchange interactions. From magnetization and heat capacity measurements we conclude that the S=1 spins of the interplane V3+ ions are weakly coupled to the kagome layers, such that DQVOF can be viewed as an experimental model","authors_text":"1 P. Mendels, A. Harrison, F. Bert, F. H. Aidoudi, J.C. Orain, J. P. Attfield, J. S. Lord, L. Clark, M. A. de Vries, M. T. F. Telling, P. Bonville, P. Lightfoot, R. E. Morris","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-06-18T17:07:28Z","title":"Gapless spin liquid ground state in the S=1/2 vanadium oxyfluoride kagome antiferromagnet [NH4]2[C7H14N][V7O6F18]"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.4269","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":"sha256:405280fedffcde534906635f0ae17a02a8e7c0f0f5733f0f0ba977ea1fc79de2","target":"record","created_at":"2026-05-18T03:20:36Z","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":"4d8f0851d016dd15f1f3fc1a9f33edbfd0b8326c1ea558eeb9432ef6a23141e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-06-18T17:07:28Z","title_canon_sha256":"c2a127e39dcd595df8cab58fde24f16f7333834e7d071ca078f62ed86d662256"},"schema_version":"1.0","source":{"id":"1306.4269","kind":"arxiv","version":1}},"canonical_sha256":"e0dda8585eaecb823bafdd63d34d3bfc6ca1ad613fb67f6e967c31d9121fa337","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e0dda8585eaecb823bafdd63d34d3bfc6ca1ad613fb67f6e967c31d9121fa337","first_computed_at":"2026-05-18T03:20:36.620570Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:20:36.620570Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JmXOQP0ZIPwyBvMUQtgANw9elvwOdvuCtEulBB7MXro6RtJsG4D5J8DSwnT4PmvBe6wYqIUJweFzElH5g4nJDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:20:36.621427Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.4269","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:405280fedffcde534906635f0ae17a02a8e7c0f0f5733f0f0ba977ea1fc79de2","sha256:c418f67b2d598c6934ed281893370825695ceeed080680dab87b270294f9394d"],"state_sha256":"e9a039bfe102a07a020b53b0a208e56eef5d19a2af761950b4879f626abcbba5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HBM1XrczaZN7bSBjtRV0aRI67egdC21j0h5nq5rjTpJMU2II/I+TWNVcpWpClfC8wuHS7JuatDbMkbmR7dDmCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T18:01:50.401474Z","bundle_sha256":"b3bd465faee67442bc68b2f21f1cd59deb799eb674ddf2dbcc7899eb5efc649f"}}