{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:WKSLELEJYPGT2DY5U2BYWWNNS2","short_pith_number":"pith:WKSLELEJ","canonical_record":{"source":{"id":"1303.2038","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-03-08T16:09:00Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"5ca04b07480006ce2d459a07343b6cad9f60939cb4a6065ab7f7f3051ea2ed65","abstract_canon_sha256":"d0073212e25d7204f3f2cb901d3344679af0fa19443a308d9d4fcc3aaeca95dc"},"schema_version":"1.0"},"canonical_sha256":"b2a4b22c89c3cd3d0f1da6838b59ad968346200da226a4ef9661b790bea0b5ce","source":{"kind":"arxiv","id":"1303.2038","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.2038","created_at":"2026-05-18T01:16:30Z"},{"alias_kind":"arxiv_version","alias_value":"1303.2038v1","created_at":"2026-05-18T01:16:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.2038","created_at":"2026-05-18T01:16:30Z"},{"alias_kind":"pith_short_12","alias_value":"WKSLELEJYPGT","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"WKSLELEJYPGT2DY5","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"WKSLELEJ","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:WKSLELEJYPGT2DY5U2BYWWNNS2","target":"record","payload":{"canonical_record":{"source":{"id":"1303.2038","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-03-08T16:09:00Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"5ca04b07480006ce2d459a07343b6cad9f60939cb4a6065ab7f7f3051ea2ed65","abstract_canon_sha256":"d0073212e25d7204f3f2cb901d3344679af0fa19443a308d9d4fcc3aaeca95dc"},"schema_version":"1.0"},"canonical_sha256":"b2a4b22c89c3cd3d0f1da6838b59ad968346200da226a4ef9661b790bea0b5ce","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:16:30.013566Z","signature_b64":"40v60eTbl8+b1+XeN1Qez4OfgzdqGolN92CO9WlIrN6982hFUlFIY/p2liT2oh2lbZ72l7A+hLJ6+BZNV2gvDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b2a4b22c89c3cd3d0f1da6838b59ad968346200da226a4ef9661b790bea0b5ce","last_reissued_at":"2026-05-18T01:16:30.013013Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:16:30.013013Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.2038","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":"2026-05-18T01:16:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KMIi9EQZtRY4TjcFaTPGG1IDDHX4PtVzkbP+y1FiOsLFPy5LVx45/DQraaccxzKK9V1SpvpJodKWmOh2gY9nAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T05:34:58.821763Z"},"content_sha256":"21cb390b541f6973c593a9f2a076676198bbd05f33db6d0527111514e9ecd588","schema_version":"1.0","event_id":"sha256:21cb390b541f6973c593a9f2a076676198bbd05f33db6d0527111514e9ecd588"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:WKSLELEJYPGT2DY5U2BYWWNNS2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Strain effects to optimize the thermoelectric properties of hole-doped La$_2$NiO$_{4+\\delta}$ via ab initio calculations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"Antia S. Botana, Daniel Baldomir, Victor Pardo","submitted_at":"2013-03-08T16:09:00Z","abstract_excerpt":"Thermoelectric properties of the system La$_2$NiO$_{4+\\delta}$ have been recently discussed [Phys. Rev. B 86, 165114 (2012)] via ab initio calculations. An optimum hole-doping value was obtained with reasonable thermopower and thermoelectric figure of merit being calculated. Here, a large increase in the thermoelectric performance through lattice strain and the corresponding atomic relaxations is predicted. This increase would be experimentally attainable via growth in thin films of the material on top of different substrates. A small tensile strain would produce large thermoelectric figures o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.2038","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":"2026-05-18T01:16:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LcjXl7bnqn7I79uou45MxtuW2TqECVKxtXehhFr0W51MBDcFTNW5vDHEKxsgxPTC3FgVu/nxV1VGJg1D25XmBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T05:34:58.822360Z"},"content_sha256":"fa0b3a001ba81c591fda4ac082b7a5ed92f67c55659f0405dc2ba99ac8ee742f","schema_version":"1.0","event_id":"sha256:fa0b3a001ba81c591fda4ac082b7a5ed92f67c55659f0405dc2ba99ac8ee742f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WKSLELEJYPGT2DY5U2BYWWNNS2/bundle.json","state_url":"https://pith.science/pith/WKSLELEJYPGT2DY5U2BYWWNNS2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WKSLELEJYPGT2DY5U2BYWWNNS2/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":"2026-05-27T05:34:58Z","links":{"resolver":"https://pith.science/pith/WKSLELEJYPGT2DY5U2BYWWNNS2","bundle":"https://pith.science/pith/WKSLELEJYPGT2DY5U2BYWWNNS2/bundle.json","state":"https://pith.science/pith/WKSLELEJYPGT2DY5U2BYWWNNS2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WKSLELEJYPGT2DY5U2BYWWNNS2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:WKSLELEJYPGT2DY5U2BYWWNNS2","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":"d0073212e25d7204f3f2cb901d3344679af0fa19443a308d9d4fcc3aaeca95dc","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-03-08T16:09:00Z","title_canon_sha256":"5ca04b07480006ce2d459a07343b6cad9f60939cb4a6065ab7f7f3051ea2ed65"},"schema_version":"1.0","source":{"id":"1303.2038","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.2038","created_at":"2026-05-18T01:16:30Z"},{"alias_kind":"arxiv_version","alias_value":"1303.2038v1","created_at":"2026-05-18T01:16:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.2038","created_at":"2026-05-18T01:16:30Z"},{"alias_kind":"pith_short_12","alias_value":"WKSLELEJYPGT","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"WKSLELEJYPGT2DY5","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"WKSLELEJ","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:fa0b3a001ba81c591fda4ac082b7a5ed92f67c55659f0405dc2ba99ac8ee742f","target":"graph","created_at":"2026-05-18T01:16:30Z","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":"Thermoelectric properties of the system La$_2$NiO$_{4+\\delta}$ have been recently discussed [Phys. Rev. B 86, 165114 (2012)] via ab initio calculations. An optimum hole-doping value was obtained with reasonable thermopower and thermoelectric figure of merit being calculated. Here, a large increase in the thermoelectric performance through lattice strain and the corresponding atomic relaxations is predicted. This increase would be experimentally attainable via growth in thin films of the material on top of different substrates. A small tensile strain would produce large thermoelectric figures o","authors_text":"Antia S. Botana, Daniel Baldomir, Victor Pardo","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-03-08T16:09:00Z","title":"Strain effects to optimize the thermoelectric properties of hole-doped La$_2$NiO$_{4+\\delta}$ via ab initio calculations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.2038","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":"sha256:21cb390b541f6973c593a9f2a076676198bbd05f33db6d0527111514e9ecd588","target":"record","created_at":"2026-05-18T01:16:30Z","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":"d0073212e25d7204f3f2cb901d3344679af0fa19443a308d9d4fcc3aaeca95dc","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-03-08T16:09:00Z","title_canon_sha256":"5ca04b07480006ce2d459a07343b6cad9f60939cb4a6065ab7f7f3051ea2ed65"},"schema_version":"1.0","source":{"id":"1303.2038","kind":"arxiv","version":1}},"canonical_sha256":"b2a4b22c89c3cd3d0f1da6838b59ad968346200da226a4ef9661b790bea0b5ce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b2a4b22c89c3cd3d0f1da6838b59ad968346200da226a4ef9661b790bea0b5ce","first_computed_at":"2026-05-18T01:16:30.013013Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:16:30.013013Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"40v60eTbl8+b1+XeN1Qez4OfgzdqGolN92CO9WlIrN6982hFUlFIY/p2liT2oh2lbZ72l7A+hLJ6+BZNV2gvDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:16:30.013566Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.2038","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:21cb390b541f6973c593a9f2a076676198bbd05f33db6d0527111514e9ecd588","sha256:fa0b3a001ba81c591fda4ac082b7a5ed92f67c55659f0405dc2ba99ac8ee742f"],"state_sha256":"83a4a5a07bf437cee1c30d923485dcc07bbfd5ace8fd20c689d0c0d9ef59ccb8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JRhZ40/X0fGIWkrw2TBZhzbwCAcAq3FKH7ZBH+E0JJweDPPQcExuAX5qnEUD8CqcRbGR4PGhixT/M4XGlzPbAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T05:34:58.825628Z","bundle_sha256":"b23aad3b2db1f6c8e3df58225c3c87649ef7a6712e9f870425fd9a62b62199a8"}}