{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:OJUVJNP2UPV72E6EZQJAJGVPJ5","short_pith_number":"pith:OJUVJNP2","canonical_record":{"source":{"id":"0912.2584","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2009-12-14T16:16:17Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"6065aeb1ef5533ee4d60deda3e741ccc766b39833a39a102e6373b6936bc6099","abstract_canon_sha256":"a0e72e965bc5d872173d54d87d14c690eeb355e69a6d5368df152e77de81069a"},"schema_version":"1.0"},"canonical_sha256":"726954b5faa3ebfd13c4cc12049aaf4f4852266fd32d0fd9e135a7915e20317b","source":{"kind":"arxiv","id":"0912.2584","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.2584","created_at":"2026-05-18T02:10:23Z"},{"alias_kind":"arxiv_version","alias_value":"0912.2584v1","created_at":"2026-05-18T02:10:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.2584","created_at":"2026-05-18T02:10:23Z"},{"alias_kind":"pith_short_12","alias_value":"OJUVJNP2UPV7","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"OJUVJNP2UPV72E6E","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"OJUVJNP2","created_at":"2026-05-18T12:26:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:OJUVJNP2UPV72E6EZQJAJGVPJ5","target":"record","payload":{"canonical_record":{"source":{"id":"0912.2584","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2009-12-14T16:16:17Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"6065aeb1ef5533ee4d60deda3e741ccc766b39833a39a102e6373b6936bc6099","abstract_canon_sha256":"a0e72e965bc5d872173d54d87d14c690eeb355e69a6d5368df152e77de81069a"},"schema_version":"1.0"},"canonical_sha256":"726954b5faa3ebfd13c4cc12049aaf4f4852266fd32d0fd9e135a7915e20317b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:10:23.983360Z","signature_b64":"5+UFskuoTuuCoDvcK8CIyqo3oZIbbbaFIhFZo0ia6QhKmu5cf1UwEAU3grq7JtAiYNSr6T3UnZpxBs2Ova4zBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"726954b5faa3ebfd13c4cc12049aaf4f4852266fd32d0fd9e135a7915e20317b","last_reissued_at":"2026-05-18T02:10:23.982854Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:10:23.982854Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0912.2584","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":"2026-05-18T02:10:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZbqP5C2lE0yMBYKP8FKrM4TQTseUw6pfaFk6yY0/fBCjuhGNKCyPM9tkq712j/Mt3IqRiHdcu01FE/GFHupbAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T11:09:53.423047Z"},"content_sha256":"c26ac6d71a4dd3c2882e432b55649b2b27447add119b5b6a243468fc717ffdc5","schema_version":"1.0","event_id":"sha256:c26ac6d71a4dd3c2882e432b55649b2b27447add119b5b6a243468fc717ffdc5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:OJUVJNP2UPV72E6EZQJAJGVPJ5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Anisotropic magnetic field responses of ferroelectric polarization in a trigonal multiferroic CuFe1-xAlxO2 (x=0.015)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"A. Podlesnyak, H. Mitamura, K. Kindo, K. Prokes, M. Tokunaga, M. Yamano, S. Iwamoto, S. Kanetsuki, S. Mitsuda, T. Nakajima, Y. Sawai, Y. Yoshida","submitted_at":"2009-12-14T16:16:17Z","abstract_excerpt":"We have investigated magnetic field dependences of a ferroelectric incommensurate-helimagnetic order in a trigonal magneto-electric (ME) multiferroic CuFe1-xAlxO2 with x=0.015, which exhibits the ferroelectric phase as a ground state, by means of neutron diffraction, magnetization and dielectric polarization measurements under magnetic fields applied along various directions. From the present results, we have established the H-T magnetic phase diagrams for the three principal directions of magnetic fields; (i) parallel to the c axis, (ii) parallel to the helical axis, and (iii) perpendicular t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.2584","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":"2026-05-18T02:10:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j8fuCSTqnkhG/Ja6HuA2Fj+mFgCmvLDfAZutgXtLRfn663WfshtVA5US8uuYKzpeyhLjDazA67n3hQFWFwv6DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T11:09:53.423405Z"},"content_sha256":"89c377f8aebfccb749f9fdefa0f02b7fb7c4d1431685a43455021c78d80e8558","schema_version":"1.0","event_id":"sha256:89c377f8aebfccb749f9fdefa0f02b7fb7c4d1431685a43455021c78d80e8558"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OJUVJNP2UPV72E6EZQJAJGVPJ5/bundle.json","state_url":"https://pith.science/pith/OJUVJNP2UPV72E6EZQJAJGVPJ5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OJUVJNP2UPV72E6EZQJAJGVPJ5/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":"2026-06-03T11:09:53Z","links":{"resolver":"https://pith.science/pith/OJUVJNP2UPV72E6EZQJAJGVPJ5","bundle":"https://pith.science/pith/OJUVJNP2UPV72E6EZQJAJGVPJ5/bundle.json","state":"https://pith.science/pith/OJUVJNP2UPV72E6EZQJAJGVPJ5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OJUVJNP2UPV72E6EZQJAJGVPJ5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:OJUVJNP2UPV72E6EZQJAJGVPJ5","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":"a0e72e965bc5d872173d54d87d14c690eeb355e69a6d5368df152e77de81069a","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2009-12-14T16:16:17Z","title_canon_sha256":"6065aeb1ef5533ee4d60deda3e741ccc766b39833a39a102e6373b6936bc6099"},"schema_version":"1.0","source":{"id":"0912.2584","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.2584","created_at":"2026-05-18T02:10:23Z"},{"alias_kind":"arxiv_version","alias_value":"0912.2584v1","created_at":"2026-05-18T02:10:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.2584","created_at":"2026-05-18T02:10:23Z"},{"alias_kind":"pith_short_12","alias_value":"OJUVJNP2UPV7","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"OJUVJNP2UPV72E6E","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"OJUVJNP2","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:89c377f8aebfccb749f9fdefa0f02b7fb7c4d1431685a43455021c78d80e8558","target":"graph","created_at":"2026-05-18T02:10:23Z","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 have investigated magnetic field dependences of a ferroelectric incommensurate-helimagnetic order in a trigonal magneto-electric (ME) multiferroic CuFe1-xAlxO2 with x=0.015, which exhibits the ferroelectric phase as a ground state, by means of neutron diffraction, magnetization and dielectric polarization measurements under magnetic fields applied along various directions. From the present results, we have established the H-T magnetic phase diagrams for the three principal directions of magnetic fields; (i) parallel to the c axis, (ii) parallel to the helical axis, and (iii) perpendicular t","authors_text":"A. Podlesnyak, H. Mitamura, K. Kindo, K. Prokes, M. Tokunaga, M. Yamano, S. Iwamoto, S. Kanetsuki, S. Mitsuda, T. Nakajima, Y. Sawai, Y. Yoshida","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2009-12-14T16:16:17Z","title":"Anisotropic magnetic field responses of ferroelectric polarization in a trigonal multiferroic CuFe1-xAlxO2 (x=0.015)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.2584","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:c26ac6d71a4dd3c2882e432b55649b2b27447add119b5b6a243468fc717ffdc5","target":"record","created_at":"2026-05-18T02:10:23Z","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":"a0e72e965bc5d872173d54d87d14c690eeb355e69a6d5368df152e77de81069a","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2009-12-14T16:16:17Z","title_canon_sha256":"6065aeb1ef5533ee4d60deda3e741ccc766b39833a39a102e6373b6936bc6099"},"schema_version":"1.0","source":{"id":"0912.2584","kind":"arxiv","version":1}},"canonical_sha256":"726954b5faa3ebfd13c4cc12049aaf4f4852266fd32d0fd9e135a7915e20317b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"726954b5faa3ebfd13c4cc12049aaf4f4852266fd32d0fd9e135a7915e20317b","first_computed_at":"2026-05-18T02:10:23.982854Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:10:23.982854Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5+UFskuoTuuCoDvcK8CIyqo3oZIbbbaFIhFZo0ia6QhKmu5cf1UwEAU3grq7JtAiYNSr6T3UnZpxBs2Ova4zBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:10:23.983360Z","signed_message":"canonical_sha256_bytes"},"source_id":"0912.2584","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c26ac6d71a4dd3c2882e432b55649b2b27447add119b5b6a243468fc717ffdc5","sha256:89c377f8aebfccb749f9fdefa0f02b7fb7c4d1431685a43455021c78d80e8558"],"state_sha256":"6f5048e2917321cb106d72bdb287c82d046f926e4246a2faf8919847afc9ba02"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kKSrEm1rxtjfc52o2CwPTN7CMqWCMF0isNMG21ce3Lna9KD1zjWELXWa6ScI+Zruv1Du7YGcd+9Lovl/ylN/Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T11:09:53.425331Z","bundle_sha256":"aa629c8510071728b2ae9b0bc1db10b317f01ea86ae33e6d3648f35776e0868b"}}