{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:PQRNBNVN5CW6AO4KHO7OAG2ZQA","short_pith_number":"pith:PQRNBNVN","canonical_record":{"source":{"id":"1710.08771","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-10-24T13:48:41Z","cross_cats_sorted":[],"title_canon_sha256":"95f0ba0886564c3f97f50d642af65d7517493591d812bbe52d35fa200c112921","abstract_canon_sha256":"2fa5a593cc8de258ab36a1ef45e640f7ccdebb2a552d281db90e6771afb85dbc"},"schema_version":"1.0"},"canonical_sha256":"7c22d0b6ade8ade03b8a3bbee01b59803e9d25119c19e2fd94f7e2a582854bf9","source":{"kind":"arxiv","id":"1710.08771","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.08771","created_at":"2026-05-18T00:18:53Z"},{"alias_kind":"arxiv_version","alias_value":"1710.08771v1","created_at":"2026-05-18T00:18:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.08771","created_at":"2026-05-18T00:18:53Z"},{"alias_kind":"pith_short_12","alias_value":"PQRNBNVN5CW6","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"PQRNBNVN5CW6AO4K","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"PQRNBNVN","created_at":"2026-05-18T12:31:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:PQRNBNVN5CW6AO4KHO7OAG2ZQA","target":"record","payload":{"canonical_record":{"source":{"id":"1710.08771","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-10-24T13:48:41Z","cross_cats_sorted":[],"title_canon_sha256":"95f0ba0886564c3f97f50d642af65d7517493591d812bbe52d35fa200c112921","abstract_canon_sha256":"2fa5a593cc8de258ab36a1ef45e640f7ccdebb2a552d281db90e6771afb85dbc"},"schema_version":"1.0"},"canonical_sha256":"7c22d0b6ade8ade03b8a3bbee01b59803e9d25119c19e2fd94f7e2a582854bf9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:18:53.143644Z","signature_b64":"iwCpliQl+eHrKBU7X5dygVYmpmr0cOBWfaBMfKVWaYxUdr+DUIatYkRmQbvoD8WJRUNy1Ep22J1m68UCX88mBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c22d0b6ade8ade03b8a3bbee01b59803e9d25119c19e2fd94f7e2a582854bf9","last_reissued_at":"2026-05-18T00:18:53.143139Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:18:53.143139Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.08771","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":"2026-05-18T00:18:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LVtXmEXCvVsa05gLoGiNK0ml1yz5K36rS2qtqFyQty7w/nZoir86WUVSDr/3ZJz0ZP8erppA1Fs0pd0PTBWtAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:44:23.416164Z"},"content_sha256":"381833ca434e2693b5caa50ed8ebd7caeba06c0b7e1b3232f40bd2efdebccfde","schema_version":"1.0","event_id":"sha256:381833ca434e2693b5caa50ed8ebd7caeba06c0b7e1b3232f40bd2efdebccfde"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:PQRNBNVN5CW6AO4KHO7OAG2ZQA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The $c$-axis dimer and its electronic break-up: the insulator-to-metal transition in Ti$_2$O$_3$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"A. C. Komarek, A. Tanaka, C. F. Chang, C. T. Chen, F. Offi, G. Monaco, G. Panaccione, H.-J. Lin, H. Ott, H. Roth, Hua Wu, J. Gegner, J. Weinen, K.-D. Tsuei, L. H. Tjeng, M. W. Haverkort, S. Agrestini, T. C. Koethe, Y.-F. Liao, Z. Hu","submitted_at":"2017-10-24T13:48:41Z","abstract_excerpt":"We report on our investigation of the electronic structure of Ti$_2$O$_3$ using (hard) x-ray photoelectron and soft x-ray absorption spectroscopy. From the distinct satellite structures in the spectra we have been able to establish unambiguously that the Ti-Ti $c$-axis dimer in the corundum crystal structure is electronically present and forms an $a_{1g}a_{1g}$ molecular singlet in the low temperature insulating phase. Upon heating we observed a considerable spectral weight transfer to lower energies with orbital reconstruction. The insulator-metal transition may be viewed as a transition from"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.08771","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":"2026-05-18T00:18:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mi0NWtxnBtdxoKcyDJCYfTeDBBVsHl8SXG8jXjGwt24i43TjLNQy0BQw2BCDIXHbX1ID0+BgxwOz4pDOYPPoDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:44:23.416537Z"},"content_sha256":"9b3656d30e250ad6cb23a2cb37b8b3c3beb7f95593d8d0578e8da094286c30de","schema_version":"1.0","event_id":"sha256:9b3656d30e250ad6cb23a2cb37b8b3c3beb7f95593d8d0578e8da094286c30de"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PQRNBNVN5CW6AO4KHO7OAG2ZQA/bundle.json","state_url":"https://pith.science/pith/PQRNBNVN5CW6AO4KHO7OAG2ZQA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PQRNBNVN5CW6AO4KHO7OAG2ZQA/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":"2026-05-28T01:44:23Z","links":{"resolver":"https://pith.science/pith/PQRNBNVN5CW6AO4KHO7OAG2ZQA","bundle":"https://pith.science/pith/PQRNBNVN5CW6AO4KHO7OAG2ZQA/bundle.json","state":"https://pith.science/pith/PQRNBNVN5CW6AO4KHO7OAG2ZQA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PQRNBNVN5CW6AO4KHO7OAG2ZQA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:PQRNBNVN5CW6AO4KHO7OAG2ZQA","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":"2fa5a593cc8de258ab36a1ef45e640f7ccdebb2a552d281db90e6771afb85dbc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-10-24T13:48:41Z","title_canon_sha256":"95f0ba0886564c3f97f50d642af65d7517493591d812bbe52d35fa200c112921"},"schema_version":"1.0","source":{"id":"1710.08771","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.08771","created_at":"2026-05-18T00:18:53Z"},{"alias_kind":"arxiv_version","alias_value":"1710.08771v1","created_at":"2026-05-18T00:18:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.08771","created_at":"2026-05-18T00:18:53Z"},{"alias_kind":"pith_short_12","alias_value":"PQRNBNVN5CW6","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"PQRNBNVN5CW6AO4K","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"PQRNBNVN","created_at":"2026-05-18T12:31:37Z"}],"graph_snapshots":[{"event_id":"sha256:9b3656d30e250ad6cb23a2cb37b8b3c3beb7f95593d8d0578e8da094286c30de","target":"graph","created_at":"2026-05-18T00:18:53Z","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 report on our investigation of the electronic structure of Ti$_2$O$_3$ using (hard) x-ray photoelectron and soft x-ray absorption spectroscopy. From the distinct satellite structures in the spectra we have been able to establish unambiguously that the Ti-Ti $c$-axis dimer in the corundum crystal structure is electronically present and forms an $a_{1g}a_{1g}$ molecular singlet in the low temperature insulating phase. Upon heating we observed a considerable spectral weight transfer to lower energies with orbital reconstruction. The insulator-metal transition may be viewed as a transition from","authors_text":"A. C. Komarek, A. Tanaka, C. F. Chang, C. T. Chen, F. Offi, G. Monaco, G. Panaccione, H.-J. Lin, H. Ott, H. Roth, Hua Wu, J. Gegner, J. Weinen, K.-D. Tsuei, L. H. Tjeng, M. W. Haverkort, S. Agrestini, T. C. Koethe, Y.-F. Liao, Z. Hu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-10-24T13:48:41Z","title":"The $c$-axis dimer and its electronic break-up: the insulator-to-metal transition in Ti$_2$O$_3$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.08771","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":"sha256:381833ca434e2693b5caa50ed8ebd7caeba06c0b7e1b3232f40bd2efdebccfde","target":"record","created_at":"2026-05-18T00:18:53Z","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":"2fa5a593cc8de258ab36a1ef45e640f7ccdebb2a552d281db90e6771afb85dbc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-10-24T13:48:41Z","title_canon_sha256":"95f0ba0886564c3f97f50d642af65d7517493591d812bbe52d35fa200c112921"},"schema_version":"1.0","source":{"id":"1710.08771","kind":"arxiv","version":1}},"canonical_sha256":"7c22d0b6ade8ade03b8a3bbee01b59803e9d25119c19e2fd94f7e2a582854bf9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c22d0b6ade8ade03b8a3bbee01b59803e9d25119c19e2fd94f7e2a582854bf9","first_computed_at":"2026-05-18T00:18:53.143139Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:18:53.143139Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iwCpliQl+eHrKBU7X5dygVYmpmr0cOBWfaBMfKVWaYxUdr+DUIatYkRmQbvoD8WJRUNy1Ep22J1m68UCX88mBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:18:53.143644Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.08771","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:381833ca434e2693b5caa50ed8ebd7caeba06c0b7e1b3232f40bd2efdebccfde","sha256:9b3656d30e250ad6cb23a2cb37b8b3c3beb7f95593d8d0578e8da094286c30de"],"state_sha256":"dab5ce6e796869eaa6f1add6a2a6ef32533080c24333f1045ad51c8e25244839"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AsmZozA26rWRzTGKzpqoECDPLYYRgvfEUWJHub83dZx69WCGdb6U0Xz08ORHtOKL3J0BBySWO6UdxNdF798VDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T01:44:23.418506Z","bundle_sha256":"a394cee7c7ce53eeadccaa576350635d5a8b5881c6099ee5e6502016f0a19111"}}