{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:HD73UGYLEK4DHZVEAABOC2PBYL","short_pith_number":"pith:HD73UGYL","canonical_record":{"source":{"id":"1407.6450","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-07-24T04:42:05Z","cross_cats_sorted":[],"title_canon_sha256":"cabf74d5859529c91347f04c31b1efd17ee96f22fa18f9f8d69edd24e8f06465","abstract_canon_sha256":"ab3ae9c29bcefa42f86a3e59f0bc487ebe68480e35e5fdac84dae8c2c53ff183"},"schema_version":"1.0"},"canonical_sha256":"38ffba1b0b22b833e6a40002e169e1c2e10195879e7ff5038ffe38dbdab1a074","source":{"kind":"arxiv","id":"1407.6450","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.6450","created_at":"2026-05-18T01:42:32Z"},{"alias_kind":"arxiv_version","alias_value":"1407.6450v1","created_at":"2026-05-18T01:42:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.6450","created_at":"2026-05-18T01:42:32Z"},{"alias_kind":"pith_short_12","alias_value":"HD73UGYLEK4D","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HD73UGYLEK4DHZVE","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HD73UGYL","created_at":"2026-05-18T12:28:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:HD73UGYLEK4DHZVEAABOC2PBYL","target":"record","payload":{"canonical_record":{"source":{"id":"1407.6450","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-07-24T04:42:05Z","cross_cats_sorted":[],"title_canon_sha256":"cabf74d5859529c91347f04c31b1efd17ee96f22fa18f9f8d69edd24e8f06465","abstract_canon_sha256":"ab3ae9c29bcefa42f86a3e59f0bc487ebe68480e35e5fdac84dae8c2c53ff183"},"schema_version":"1.0"},"canonical_sha256":"38ffba1b0b22b833e6a40002e169e1c2e10195879e7ff5038ffe38dbdab1a074","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:32.336033Z","signature_b64":"tu6ErXZrL4+unLMfX2UuxXNDr9TuWp95rahNMmaCzmj2/GKBCrpkOqjTFcIXwvMX3Rx2sqref+UxaK5bBdPKAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"38ffba1b0b22b833e6a40002e169e1c2e10195879e7ff5038ffe38dbdab1a074","last_reissued_at":"2026-05-18T01:42:32.335261Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:32.335261Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.6450","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":"2026-05-18T01:42:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R+hbRYBN+cxqA3cV5gb3nwSxxjUkQJpMph0BGgLBuo+0un8mq49BG+mM8Dc2itfiTD5D038mxO4TpUHqVgj7DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T12:20:11.021770Z"},"content_sha256":"85683cbe0cfb67199277f5daff350b0d3f30d2af1a138cb51f5f2e2f8329044e","schema_version":"1.0","event_id":"sha256:85683cbe0cfb67199277f5daff350b0d3f30d2af1a138cb51f5f2e2f8329044e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:HD73UGYLEK4DHZVEAABOC2PBYL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Successive magnetic transitions of Ca$_2$CoSi$_2$O$_7$ in high magnetic fields","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Akira Matsuo, Hideki Kuwahara, Koichi Kindo, Masashi Tokunaga, Mitsuru Akaki","submitted_at":"2014-07-24T04:42:05Z","abstract_excerpt":"Magnetic and dielectric properties of \\aa kermanite Ca$_2$CoSi$_2$O$_7$ single crystals were investigated in pulsed high magnetic fields. In magnetic fields along the $c$ axis, this material shows a magnetization plateau in a wide range of field below the saturation. Magnetization processes for fields along the $a$ and $b$ axes show multiple anomalies but different traces to each other, indicating the breaking of four-fold symmetry. Measurements of the magnetoelectric effects exhibit the changes in electric polarization according to the changes in the spin system. The experimentally determined"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.6450","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":"2026-05-18T01:42:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bUx8gWH5bruo4NaK0pJLmy+gvjahs3YZwCHldA0B37vSNhjkczbTMQ0HMKSj7RzIssQC5LF9BJN36KE4+LtaDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T12:20:11.022150Z"},"content_sha256":"779e428a04f9d99727a6d173965c453d014afd8b6a716f59f785a8427a00c73d","schema_version":"1.0","event_id":"sha256:779e428a04f9d99727a6d173965c453d014afd8b6a716f59f785a8427a00c73d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HD73UGYLEK4DHZVEAABOC2PBYL/bundle.json","state_url":"https://pith.science/pith/HD73UGYLEK4DHZVEAABOC2PBYL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HD73UGYLEK4DHZVEAABOC2PBYL/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":"2026-06-05T12:20:11Z","links":{"resolver":"https://pith.science/pith/HD73UGYLEK4DHZVEAABOC2PBYL","bundle":"https://pith.science/pith/HD73UGYLEK4DHZVEAABOC2PBYL/bundle.json","state":"https://pith.science/pith/HD73UGYLEK4DHZVEAABOC2PBYL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HD73UGYLEK4DHZVEAABOC2PBYL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:HD73UGYLEK4DHZVEAABOC2PBYL","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":"ab3ae9c29bcefa42f86a3e59f0bc487ebe68480e35e5fdac84dae8c2c53ff183","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-07-24T04:42:05Z","title_canon_sha256":"cabf74d5859529c91347f04c31b1efd17ee96f22fa18f9f8d69edd24e8f06465"},"schema_version":"1.0","source":{"id":"1407.6450","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.6450","created_at":"2026-05-18T01:42:32Z"},{"alias_kind":"arxiv_version","alias_value":"1407.6450v1","created_at":"2026-05-18T01:42:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.6450","created_at":"2026-05-18T01:42:32Z"},{"alias_kind":"pith_short_12","alias_value":"HD73UGYLEK4D","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HD73UGYLEK4DHZVE","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HD73UGYL","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:779e428a04f9d99727a6d173965c453d014afd8b6a716f59f785a8427a00c73d","target":"graph","created_at":"2026-05-18T01:42:32Z","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":"Magnetic and dielectric properties of \\aa kermanite Ca$_2$CoSi$_2$O$_7$ single crystals were investigated in pulsed high magnetic fields. In magnetic fields along the $c$ axis, this material shows a magnetization plateau in a wide range of field below the saturation. Magnetization processes for fields along the $a$ and $b$ axes show multiple anomalies but different traces to each other, indicating the breaking of four-fold symmetry. Measurements of the magnetoelectric effects exhibit the changes in electric polarization according to the changes in the spin system. The experimentally determined","authors_text":"Akira Matsuo, Hideki Kuwahara, Koichi Kindo, Masashi Tokunaga, Mitsuru Akaki","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-07-24T04:42:05Z","title":"Successive magnetic transitions of Ca$_2$CoSi$_2$O$_7$ in high magnetic fields"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.6450","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":"sha256:85683cbe0cfb67199277f5daff350b0d3f30d2af1a138cb51f5f2e2f8329044e","target":"record","created_at":"2026-05-18T01:42:32Z","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":"ab3ae9c29bcefa42f86a3e59f0bc487ebe68480e35e5fdac84dae8c2c53ff183","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-07-24T04:42:05Z","title_canon_sha256":"cabf74d5859529c91347f04c31b1efd17ee96f22fa18f9f8d69edd24e8f06465"},"schema_version":"1.0","source":{"id":"1407.6450","kind":"arxiv","version":1}},"canonical_sha256":"38ffba1b0b22b833e6a40002e169e1c2e10195879e7ff5038ffe38dbdab1a074","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"38ffba1b0b22b833e6a40002e169e1c2e10195879e7ff5038ffe38dbdab1a074","first_computed_at":"2026-05-18T01:42:32.335261Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:32.335261Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tu6ErXZrL4+unLMfX2UuxXNDr9TuWp95rahNMmaCzmj2/GKBCrpkOqjTFcIXwvMX3Rx2sqref+UxaK5bBdPKAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:32.336033Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.6450","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:85683cbe0cfb67199277f5daff350b0d3f30d2af1a138cb51f5f2e2f8329044e","sha256:779e428a04f9d99727a6d173965c453d014afd8b6a716f59f785a8427a00c73d"],"state_sha256":"43e45282b6ca1e35658f7756736d885061667de42c8ed3e8fc0ccb5ca1f7d29f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bXhfV+OoXg7cNl74f9eAXpFeqKgNt5m8Ib29qdXYlUfa5OiLVHOoKZQ2gldv3GnZjRWZQl1NRReGsUgMvxQ7CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T12:20:11.024238Z","bundle_sha256":"7184efdc1a1b4cbc2bdb85dcfa2127674aee1a41ee9f9bc652a77228f0b53462"}}