{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:SIAHY5HZMMC4Z35AF4S4KFOGXK","short_pith_number":"pith:SIAHY5HZ","canonical_record":{"source":{"id":"1512.07488","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-12-23T14:23:26Z","cross_cats_sorted":[],"title_canon_sha256":"f407f7555b14f32b2822157ef9c19849eebb9719fe13cf3e51b164ec3f4b0940","abstract_canon_sha256":"f891cbc836dcd0d3453822761ea8c19f5bb94940646a5945cb1ff1a157fac959"},"schema_version":"1.0"},"canonical_sha256":"92007c74f96305ccefa02f25c515c6ba80a81cbf7e60c5766c9695af5bbe1474","source":{"kind":"arxiv","id":"1512.07488","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.07488","created_at":"2026-05-18T01:23:49Z"},{"alias_kind":"arxiv_version","alias_value":"1512.07488v1","created_at":"2026-05-18T01:23:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.07488","created_at":"2026-05-18T01:23:49Z"},{"alias_kind":"pith_short_12","alias_value":"SIAHY5HZMMC4","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"SIAHY5HZMMC4Z35A","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"SIAHY5HZ","created_at":"2026-05-18T12:29:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:SIAHY5HZMMC4Z35AF4S4KFOGXK","target":"record","payload":{"canonical_record":{"source":{"id":"1512.07488","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-12-23T14:23:26Z","cross_cats_sorted":[],"title_canon_sha256":"f407f7555b14f32b2822157ef9c19849eebb9719fe13cf3e51b164ec3f4b0940","abstract_canon_sha256":"f891cbc836dcd0d3453822761ea8c19f5bb94940646a5945cb1ff1a157fac959"},"schema_version":"1.0"},"canonical_sha256":"92007c74f96305ccefa02f25c515c6ba80a81cbf7e60c5766c9695af5bbe1474","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:23:49.589207Z","signature_b64":"rLPb/l4MNXrpXpF74OA+u5PrVb6NaJnVsQYSg+z+Dm1RuMArdngAhbLO5IcPYseHAKaXzjkXKLX6yBp5mL9lCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"92007c74f96305ccefa02f25c515c6ba80a81cbf7e60c5766c9695af5bbe1474","last_reissued_at":"2026-05-18T01:23:49.588612Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:23:49.588612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1512.07488","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":"2026-05-18T01:23:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YHwMKxh8oyG71dw1Yt7Dur926GhsucxyAeI+emqE7WWFL2P0rJXcg9kO7WANWk9zZf0ORPL8Ci+HTxtNnwh/Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T10:20:51.372068Z"},"content_sha256":"67fdc81aa939a556887e857a1b39b169629d0ebab68b8a0e556ac22609f80cd8","schema_version":"1.0","event_id":"sha256:67fdc81aa939a556887e857a1b39b169629d0ebab68b8a0e556ac22609f80cd8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:SIAHY5HZMMC4Z35AF4S4KFOGXK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic Ordering and Crystal Field Effects in Quasi Caged Structure Compound PrFe$_2$Al$_8$","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Andr\\'e M. Strydom, Harikrishnan S. Nair, Ramesh Kumar K, Sarit K. Ghosh","submitted_at":"2015-12-23T14:23:26Z","abstract_excerpt":"The compound PrFe$_2$Al$_8$ possesses a three-dimensional network structure resulting from the packing of Al polyhedra centered at the transition metal element Fe and the rare earth Pr. Along the $c$-axis, Fe and Pr form {\\em chains} which are separated from each other by the Al-network. In this paper, the magnetism and crystalline electric field effects in PrFe$_2$Al$_8$ are investigated through the analysis of magnetization and specific heat data. A magnetic phase transition in the Pr lattice is identified at $T^{Pr}_{N}\\approx$ 4~K in dc magnetization and ac susceptibility data. At 2~K, the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.07488","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":"2026-05-18T01:23:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DbQptag9VDycLjnR5kQJPJdUE8dghIwIhipmtpdWp+nwHYEUuQMbVTOv6I+yDNhPoJ4mQlcdjX8CdAWjaw4TBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T10:20:51.372619Z"},"content_sha256":"ea7e960773424083fe1db1ee4ec8a6a90794f02a5c20f792329992c7e4dddc48","schema_version":"1.0","event_id":"sha256:ea7e960773424083fe1db1ee4ec8a6a90794f02a5c20f792329992c7e4dddc48"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SIAHY5HZMMC4Z35AF4S4KFOGXK/bundle.json","state_url":"https://pith.science/pith/SIAHY5HZMMC4Z35AF4S4KFOGXK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SIAHY5HZMMC4Z35AF4S4KFOGXK/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":"2026-06-07T10:20:51Z","links":{"resolver":"https://pith.science/pith/SIAHY5HZMMC4Z35AF4S4KFOGXK","bundle":"https://pith.science/pith/SIAHY5HZMMC4Z35AF4S4KFOGXK/bundle.json","state":"https://pith.science/pith/SIAHY5HZMMC4Z35AF4S4KFOGXK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SIAHY5HZMMC4Z35AF4S4KFOGXK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:SIAHY5HZMMC4Z35AF4S4KFOGXK","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":"f891cbc836dcd0d3453822761ea8c19f5bb94940646a5945cb1ff1a157fac959","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-12-23T14:23:26Z","title_canon_sha256":"f407f7555b14f32b2822157ef9c19849eebb9719fe13cf3e51b164ec3f4b0940"},"schema_version":"1.0","source":{"id":"1512.07488","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.07488","created_at":"2026-05-18T01:23:49Z"},{"alias_kind":"arxiv_version","alias_value":"1512.07488v1","created_at":"2026-05-18T01:23:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.07488","created_at":"2026-05-18T01:23:49Z"},{"alias_kind":"pith_short_12","alias_value":"SIAHY5HZMMC4","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"SIAHY5HZMMC4Z35A","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"SIAHY5HZ","created_at":"2026-05-18T12:29:42Z"}],"graph_snapshots":[{"event_id":"sha256:ea7e960773424083fe1db1ee4ec8a6a90794f02a5c20f792329992c7e4dddc48","target":"graph","created_at":"2026-05-18T01:23:49Z","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 compound PrFe$_2$Al$_8$ possesses a three-dimensional network structure resulting from the packing of Al polyhedra centered at the transition metal element Fe and the rare earth Pr. Along the $c$-axis, Fe and Pr form {\\em chains} which are separated from each other by the Al-network. In this paper, the magnetism and crystalline electric field effects in PrFe$_2$Al$_8$ are investigated through the analysis of magnetization and specific heat data. A magnetic phase transition in the Pr lattice is identified at $T^{Pr}_{N}\\approx$ 4~K in dc magnetization and ac susceptibility data. At 2~K, the","authors_text":"Andr\\'e M. Strydom, Harikrishnan S. Nair, Ramesh Kumar K, Sarit K. Ghosh","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-12-23T14:23:26Z","title":"Magnetic Ordering and Crystal Field Effects in Quasi Caged Structure Compound PrFe$_2$Al$_8$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.07488","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":"sha256:67fdc81aa939a556887e857a1b39b169629d0ebab68b8a0e556ac22609f80cd8","target":"record","created_at":"2026-05-18T01:23:49Z","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":"f891cbc836dcd0d3453822761ea8c19f5bb94940646a5945cb1ff1a157fac959","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-12-23T14:23:26Z","title_canon_sha256":"f407f7555b14f32b2822157ef9c19849eebb9719fe13cf3e51b164ec3f4b0940"},"schema_version":"1.0","source":{"id":"1512.07488","kind":"arxiv","version":1}},"canonical_sha256":"92007c74f96305ccefa02f25c515c6ba80a81cbf7e60c5766c9695af5bbe1474","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"92007c74f96305ccefa02f25c515c6ba80a81cbf7e60c5766c9695af5bbe1474","first_computed_at":"2026-05-18T01:23:49.588612Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:23:49.588612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rLPb/l4MNXrpXpF74OA+u5PrVb6NaJnVsQYSg+z+Dm1RuMArdngAhbLO5IcPYseHAKaXzjkXKLX6yBp5mL9lCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:23:49.589207Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.07488","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:67fdc81aa939a556887e857a1b39b169629d0ebab68b8a0e556ac22609f80cd8","sha256:ea7e960773424083fe1db1ee4ec8a6a90794f02a5c20f792329992c7e4dddc48"],"state_sha256":"53f4932bd992c828c9289056413290ac8cfa21ba9af1347f07b1908a7ad19b22"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WJgVH+ChuV+LgdvrkflUM4Lc7anZB3KOExQNFB8zenFQ0eYdDkWqEwSxKIVgmyGxWoaIrWSBlYcYDXR6XHYxDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T10:20:51.376024Z","bundle_sha256":"6a5fa00db440bfa83c850156bb8a3f280636d155065b4c18fe42f5ee9732f0ee"}}