{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:MQBQTL73KGS6U6UZ52LFUMHORW","short_pith_number":"pith:MQBQTL73","canonical_record":{"source":{"id":"1710.05392","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-10-15T20:13:04Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"72210305440c2e236169b84e2688111bf69afb8cf8060ae65d4bf13b88cedf84","abstract_canon_sha256":"9799b1a2f747af0f3f22da207b9982bed317ce96f0c400f959621c26c3e7d341"},"schema_version":"1.0"},"canonical_sha256":"640309affb51a5ea7a99ee965a30ee8d9dd5a3cf89eed2d48ec407376debbb42","source":{"kind":"arxiv","id":"1710.05392","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.05392","created_at":"2026-05-17T23:53:33Z"},{"alias_kind":"arxiv_version","alias_value":"1710.05392v1","created_at":"2026-05-17T23:53:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.05392","created_at":"2026-05-17T23:53:33Z"},{"alias_kind":"pith_short_12","alias_value":"MQBQTL73KGS6","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MQBQTL73KGS6U6UZ","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MQBQTL73","created_at":"2026-05-18T12:31:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:MQBQTL73KGS6U6UZ52LFUMHORW","target":"record","payload":{"canonical_record":{"source":{"id":"1710.05392","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-10-15T20:13:04Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"72210305440c2e236169b84e2688111bf69afb8cf8060ae65d4bf13b88cedf84","abstract_canon_sha256":"9799b1a2f747af0f3f22da207b9982bed317ce96f0c400f959621c26c3e7d341"},"schema_version":"1.0"},"canonical_sha256":"640309affb51a5ea7a99ee965a30ee8d9dd5a3cf89eed2d48ec407376debbb42","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:53:33.777848Z","signature_b64":"lrcyymvqv0jSa2CWgkK1wkE3cJw1AJdVssD14hNndonYJU6AJkgqQHHTKA5BnbnCOLtcwQJcaDw54R/itro1Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"640309affb51a5ea7a99ee965a30ee8d9dd5a3cf89eed2d48ec407376debbb42","last_reissued_at":"2026-05-17T23:53:33.777257Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:53:33.777257Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.05392","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":"2026-05-17T23:53:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QNyQIvQk22fqJxrtGXZWvpVVvH+9Tyfxc/LL4UA4FeGmQbr3K4Pz61wMDzPJH3yrjU5SDmeOqcLWsw96pIyuAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T07:59:58.138519Z"},"content_sha256":"5d4d8d265d11f1f7ecebf3b2b91d9bd6009a89f6d11876fee74dc85a2f4e1e2e","schema_version":"1.0","event_id":"sha256:5d4d8d265d11f1f7ecebf3b2b91d9bd6009a89f6d11876fee74dc85a2f4e1e2e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:MQBQTL73KGS6U6UZ52LFUMHORW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Itinerant ferromagnetism of the Pd-terminated polar surface of PdCoO$_2$","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. P. Mackenzie, F. Mazzola, H. Rosner, I. Markovi\\'c, L. Bawden, M. Hoesch, O. J. Clark, P. D. C. King, P. Kushwaha, S. Khim, T. K. Kim, V. Sunko","submitted_at":"2017-10-15T20:13:04Z","abstract_excerpt":"We study the electronic structure of the Pd-terminated surface of the non-magnetic delafossite oxide metal PdCoO$_2$. Combining angle-resolved photoemission spectroscopy and density-functional theory, we show how an electronic reconstruction driven by surface polarity mediates a Stoner-like magnetic instability towards itinerant surface ferromagnetism. Our results reveal how this leads to a rich multi-band surface electronic structure, and provide spectroscopic evidence for an intriguing sample-dependent coupling of the surface electrons to a bosonic mode which we attribute to electron-magnon "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.05392","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":"2026-05-17T23:53:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f8Fa+HhkB33AX8+d/SSFuODGVih3lCHVQ7LEqaxGdmKhlNXLO60lrQIVum3Ei6A/52jU/aznA8oWzsmie7KyCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T07:59:58.139247Z"},"content_sha256":"2a4099ff89d1baa0c491db7c0acfd8d203f3d7fc83026f09d7201866e0359602","schema_version":"1.0","event_id":"sha256:2a4099ff89d1baa0c491db7c0acfd8d203f3d7fc83026f09d7201866e0359602"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MQBQTL73KGS6U6UZ52LFUMHORW/bundle.json","state_url":"https://pith.science/pith/MQBQTL73KGS6U6UZ52LFUMHORW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MQBQTL73KGS6U6UZ52LFUMHORW/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":"2026-05-25T07:59:58Z","links":{"resolver":"https://pith.science/pith/MQBQTL73KGS6U6UZ52LFUMHORW","bundle":"https://pith.science/pith/MQBQTL73KGS6U6UZ52LFUMHORW/bundle.json","state":"https://pith.science/pith/MQBQTL73KGS6U6UZ52LFUMHORW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MQBQTL73KGS6U6UZ52LFUMHORW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:MQBQTL73KGS6U6UZ52LFUMHORW","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":"9799b1a2f747af0f3f22da207b9982bed317ce96f0c400f959621c26c3e7d341","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-10-15T20:13:04Z","title_canon_sha256":"72210305440c2e236169b84e2688111bf69afb8cf8060ae65d4bf13b88cedf84"},"schema_version":"1.0","source":{"id":"1710.05392","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.05392","created_at":"2026-05-17T23:53:33Z"},{"alias_kind":"arxiv_version","alias_value":"1710.05392v1","created_at":"2026-05-17T23:53:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.05392","created_at":"2026-05-17T23:53:33Z"},{"alias_kind":"pith_short_12","alias_value":"MQBQTL73KGS6","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MQBQTL73KGS6U6UZ","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MQBQTL73","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:2a4099ff89d1baa0c491db7c0acfd8d203f3d7fc83026f09d7201866e0359602","target":"graph","created_at":"2026-05-17T23:53:33Z","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 study the electronic structure of the Pd-terminated surface of the non-magnetic delafossite oxide metal PdCoO$_2$. Combining angle-resolved photoemission spectroscopy and density-functional theory, we show how an electronic reconstruction driven by surface polarity mediates a Stoner-like magnetic instability towards itinerant surface ferromagnetism. Our results reveal how this leads to a rich multi-band surface electronic structure, and provide spectroscopic evidence for an intriguing sample-dependent coupling of the surface electrons to a bosonic mode which we attribute to electron-magnon ","authors_text":"A. P. Mackenzie, F. Mazzola, H. Rosner, I. Markovi\\'c, L. Bawden, M. Hoesch, O. J. Clark, P. D. C. King, P. Kushwaha, S. Khim, T. K. Kim, V. Sunko","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-10-15T20:13:04Z","title":"Itinerant ferromagnetism of the Pd-terminated polar surface of PdCoO$_2$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.05392","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":"sha256:5d4d8d265d11f1f7ecebf3b2b91d9bd6009a89f6d11876fee74dc85a2f4e1e2e","target":"record","created_at":"2026-05-17T23:53:33Z","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":"9799b1a2f747af0f3f22da207b9982bed317ce96f0c400f959621c26c3e7d341","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-10-15T20:13:04Z","title_canon_sha256":"72210305440c2e236169b84e2688111bf69afb8cf8060ae65d4bf13b88cedf84"},"schema_version":"1.0","source":{"id":"1710.05392","kind":"arxiv","version":1}},"canonical_sha256":"640309affb51a5ea7a99ee965a30ee8d9dd5a3cf89eed2d48ec407376debbb42","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"640309affb51a5ea7a99ee965a30ee8d9dd5a3cf89eed2d48ec407376debbb42","first_computed_at":"2026-05-17T23:53:33.777257Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:53:33.777257Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lrcyymvqv0jSa2CWgkK1wkE3cJw1AJdVssD14hNndonYJU6AJkgqQHHTKA5BnbnCOLtcwQJcaDw54R/itro1Ag==","signature_status":"signed_v1","signed_at":"2026-05-17T23:53:33.777848Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.05392","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5d4d8d265d11f1f7ecebf3b2b91d9bd6009a89f6d11876fee74dc85a2f4e1e2e","sha256:2a4099ff89d1baa0c491db7c0acfd8d203f3d7fc83026f09d7201866e0359602"],"state_sha256":"b0b796ac832feb4570086e36b3a46562028ffae7ed1e0b26f2225b581e899b0b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XKRRO4IbXJIFD3FYJg9XBENrXRnlXq69gIH9M4F9cBNdKQJ8nohTVoTDlNj4fVkrICXvd66uU7O5cC0I/nHsCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T07:59:58.142957Z","bundle_sha256":"d41d455344e8714ff839b9ab717e8bfd2081c9769f4b8ceef56dfeda3b7ae91e"}}