{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:V2NQ6MFSPUJHEQDDA7VBRZVEBN","short_pith_number":"pith:V2NQ6MFS","canonical_record":{"source":{"id":"1802.01784","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-02-06T03:41:50Z","cross_cats_sorted":[],"title_canon_sha256":"7de6ad3ae5862ef5ff1535f79640953b6506c28ca232e90399a8333d1da0a41a","abstract_canon_sha256":"4f9fd9b07963489bdbe0477e0b9137148ed96ef8d6db628b3d0b6d381e1304d0"},"schema_version":"1.0"},"canonical_sha256":"ae9b0f30b27d1272406307ea18e6a40b4da14b9a9b7d2a48ae60365b867dc60f","source":{"kind":"arxiv","id":"1802.01784","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.01784","created_at":"2026-05-18T00:19:41Z"},{"alias_kind":"arxiv_version","alias_value":"1802.01784v1","created_at":"2026-05-18T00:19:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.01784","created_at":"2026-05-18T00:19:41Z"},{"alias_kind":"pith_short_12","alias_value":"V2NQ6MFSPUJH","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"V2NQ6MFSPUJHEQDD","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"V2NQ6MFS","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:V2NQ6MFSPUJHEQDDA7VBRZVEBN","target":"record","payload":{"canonical_record":{"source":{"id":"1802.01784","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-02-06T03:41:50Z","cross_cats_sorted":[],"title_canon_sha256":"7de6ad3ae5862ef5ff1535f79640953b6506c28ca232e90399a8333d1da0a41a","abstract_canon_sha256":"4f9fd9b07963489bdbe0477e0b9137148ed96ef8d6db628b3d0b6d381e1304d0"},"schema_version":"1.0"},"canonical_sha256":"ae9b0f30b27d1272406307ea18e6a40b4da14b9a9b7d2a48ae60365b867dc60f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:19:41.102565Z","signature_b64":"2m41s+a8t0+nF+Yah6ZrSvmAw/xlN/GFCx996lj3lZHiaKjLuLwDl2BC9+Zd/TSVfO93351qhvg98EvgxcqkAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ae9b0f30b27d1272406307ea18e6a40b4da14b9a9b7d2a48ae60365b867dc60f","last_reissued_at":"2026-05-18T00:19:41.101948Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:19:41.101948Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.01784","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":"2026-05-18T00:19:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FJTj0oMfILSChB0akO77orwtH4nCptNe6wSHvRVfHbSYer5N0eKZkdZcr/HV5UkHk8BBZwZvNZC0LVoK4ns9BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T10:37:18.510966Z"},"content_sha256":"4cafe4e04f72d3e62802fb5fdfd395d88043be5fa7d0623791f1443cf81a6ac0","schema_version":"1.0","event_id":"sha256:4cafe4e04f72d3e62802fb5fdfd395d88043be5fa7d0623791f1443cf81a6ac0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:V2NQ6MFSPUJHEQDDA7VBRZVEBN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Giant electrocaloric response in the prototypical Pb(Mg,Nb)O$_{3}$ relaxor ferroelectric from atomistic simulations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"D. Wang, Jorge \\'I\\~niguez, L. Bellaiche, S. Prokhorenko, S. Prosandeev, Y. Nahas, Zhijun Jiang","submitted_at":"2018-02-06T03:41:50Z","abstract_excerpt":"An atomistic effective Hamiltonian is used to investigate electrocaloric (EC) effects of Pb(Mg$_{1/3}$Nb$_{2/3}$)O$_{3}$ (PMN) relaxor ferroelectrics in its ergodic regime, and subject to electric fields applied along the pseudocubic [111] direction. Such Hamiltonian qualitatively reproduces (i) the electric field-versus-temperature phase diagram, including the existence of a critical point where first-order and second-order transitions meet each other; and (ii) a giant EC response near such critical point. It also reveals that such giant response around this critical point is microscopically "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.01784","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":"2026-05-18T00:19:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dZB1yM2wIs+QCR8ojYh396NNgN7VE0FXGRSSU6fnTvmdVDZEZIUX8B1R9TI7mcLJ8MYrq1KYoLXh/EVk4WjiDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T10:37:18.511374Z"},"content_sha256":"b052b1c30597bca7d416d3db36d6ba8e5664edd022b7a66e01c6ccb494629dc9","schema_version":"1.0","event_id":"sha256:b052b1c30597bca7d416d3db36d6ba8e5664edd022b7a66e01c6ccb494629dc9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V2NQ6MFSPUJHEQDDA7VBRZVEBN/bundle.json","state_url":"https://pith.science/pith/V2NQ6MFSPUJHEQDDA7VBRZVEBN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V2NQ6MFSPUJHEQDDA7VBRZVEBN/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":"2026-05-27T10:37:18Z","links":{"resolver":"https://pith.science/pith/V2NQ6MFSPUJHEQDDA7VBRZVEBN","bundle":"https://pith.science/pith/V2NQ6MFSPUJHEQDDA7VBRZVEBN/bundle.json","state":"https://pith.science/pith/V2NQ6MFSPUJHEQDDA7VBRZVEBN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V2NQ6MFSPUJHEQDDA7VBRZVEBN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:V2NQ6MFSPUJHEQDDA7VBRZVEBN","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":"4f9fd9b07963489bdbe0477e0b9137148ed96ef8d6db628b3d0b6d381e1304d0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-02-06T03:41:50Z","title_canon_sha256":"7de6ad3ae5862ef5ff1535f79640953b6506c28ca232e90399a8333d1da0a41a"},"schema_version":"1.0","source":{"id":"1802.01784","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.01784","created_at":"2026-05-18T00:19:41Z"},{"alias_kind":"arxiv_version","alias_value":"1802.01784v1","created_at":"2026-05-18T00:19:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.01784","created_at":"2026-05-18T00:19:41Z"},{"alias_kind":"pith_short_12","alias_value":"V2NQ6MFSPUJH","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"V2NQ6MFSPUJHEQDD","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"V2NQ6MFS","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:b052b1c30597bca7d416d3db36d6ba8e5664edd022b7a66e01c6ccb494629dc9","target":"graph","created_at":"2026-05-18T00:19:41Z","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":"An atomistic effective Hamiltonian is used to investigate electrocaloric (EC) effects of Pb(Mg$_{1/3}$Nb$_{2/3}$)O$_{3}$ (PMN) relaxor ferroelectrics in its ergodic regime, and subject to electric fields applied along the pseudocubic [111] direction. Such Hamiltonian qualitatively reproduces (i) the electric field-versus-temperature phase diagram, including the existence of a critical point where first-order and second-order transitions meet each other; and (ii) a giant EC response near such critical point. It also reveals that such giant response around this critical point is microscopically ","authors_text":"D. Wang, Jorge \\'I\\~niguez, L. Bellaiche, S. Prokhorenko, S. Prosandeev, Y. Nahas, Zhijun Jiang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-02-06T03:41:50Z","title":"Giant electrocaloric response in the prototypical Pb(Mg,Nb)O$_{3}$ relaxor ferroelectric from atomistic simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.01784","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":"sha256:4cafe4e04f72d3e62802fb5fdfd395d88043be5fa7d0623791f1443cf81a6ac0","target":"record","created_at":"2026-05-18T00:19:41Z","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":"4f9fd9b07963489bdbe0477e0b9137148ed96ef8d6db628b3d0b6d381e1304d0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-02-06T03:41:50Z","title_canon_sha256":"7de6ad3ae5862ef5ff1535f79640953b6506c28ca232e90399a8333d1da0a41a"},"schema_version":"1.0","source":{"id":"1802.01784","kind":"arxiv","version":1}},"canonical_sha256":"ae9b0f30b27d1272406307ea18e6a40b4da14b9a9b7d2a48ae60365b867dc60f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae9b0f30b27d1272406307ea18e6a40b4da14b9a9b7d2a48ae60365b867dc60f","first_computed_at":"2026-05-18T00:19:41.101948Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:19:41.101948Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2m41s+a8t0+nF+Yah6ZrSvmAw/xlN/GFCx996lj3lZHiaKjLuLwDl2BC9+Zd/TSVfO93351qhvg98EvgxcqkAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:19:41.102565Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.01784","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4cafe4e04f72d3e62802fb5fdfd395d88043be5fa7d0623791f1443cf81a6ac0","sha256:b052b1c30597bca7d416d3db36d6ba8e5664edd022b7a66e01c6ccb494629dc9"],"state_sha256":"821c8e29546557d7d5a8c13dd06d200ac13739f14c79ae87426660df8aa0d653"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j7emO0PbbyJ8EHkRmMRHZe67GxKrOzoJzKRxSILubgOhrEHRFwI46XlHVshkJIIVEKm264e0TJngQwJpkchdAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T10:37:18.514402Z","bundle_sha256":"4274c1588503448045aefbc15792e80214511177a849a79bc30db9f407748ada"}}