{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:WKDM6QK5XUUTADLQ7L7D4UVAPN","short_pith_number":"pith:WKDM6QK5","canonical_record":{"source":{"id":"0905.4637","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2009-05-28T14:05:07Z","cross_cats_sorted":[],"title_canon_sha256":"7d47f310c2f4ca5c6848ae342818c0c21a08308026ca4ccd3d0722aefe036396","abstract_canon_sha256":"e56bf6c55eae0cdfddc73713f9b7b8aeab95d626a8c523008cb14fc5624d5846"},"schema_version":"1.0"},"canonical_sha256":"b286cf415dbd29300d70fafe3e52a07b740dadb2616477f1d08b46589d64b9c5","source":{"kind":"arxiv","id":"0905.4637","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0905.4637","created_at":"2026-05-18T02:13:31Z"},{"alias_kind":"arxiv_version","alias_value":"0905.4637v1","created_at":"2026-05-18T02:13:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0905.4637","created_at":"2026-05-18T02:13:31Z"},{"alias_kind":"pith_short_12","alias_value":"WKDM6QK5XUUT","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"WKDM6QK5XUUTADLQ","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"WKDM6QK5","created_at":"2026-05-18T12:26:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:WKDM6QK5XUUTADLQ7L7D4UVAPN","target":"record","payload":{"canonical_record":{"source":{"id":"0905.4637","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2009-05-28T14:05:07Z","cross_cats_sorted":[],"title_canon_sha256":"7d47f310c2f4ca5c6848ae342818c0c21a08308026ca4ccd3d0722aefe036396","abstract_canon_sha256":"e56bf6c55eae0cdfddc73713f9b7b8aeab95d626a8c523008cb14fc5624d5846"},"schema_version":"1.0"},"canonical_sha256":"b286cf415dbd29300d70fafe3e52a07b740dadb2616477f1d08b46589d64b9c5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:13:31.160790Z","signature_b64":"FmkvQRB9liGNxwUwdn4DdzFrVVpVBdevdujCI/6ZRuFqsrYfO/w5DVHfxBKj4f8vJXPqqTc2d2iOixY9Qf9iDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b286cf415dbd29300d70fafe3e52a07b740dadb2616477f1d08b46589d64b9c5","last_reissued_at":"2026-05-18T02:13:31.160107Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:13:31.160107Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0905.4637","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":"2026-05-18T02:13:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ilQgVzHSe5na9Q5+f1CIWZ5gWEddWAcYXTMJajoUN4E+W+ExOsrgwnMo20pf9HnH/vQqnq54e8auuKMckHaVBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:25:49.157024Z"},"content_sha256":"8ac977deb0eab933abc24d8d31b79238051ac8fdb53bdaedaa183dcb5dbe3516","schema_version":"1.0","event_id":"sha256:8ac977deb0eab933abc24d8d31b79238051ac8fdb53bdaedaa183dcb5dbe3516"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:WKDM6QK5XUUTADLQ7L7D4UVAPN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mottness in High-Temperature Copper-Oxide Superconductors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Philip Phillips, Robert G. Leigh, Ting-Pong Choy","submitted_at":"2009-05-28T14:05:07Z","abstract_excerpt":"The standard theory of metals, Fermi liquid theory, hinges on the key assumption that although the electrons interact, the low-energy excitation spectrum stands in a one-to-one correspondence with that of a non-interacting system. In the normal state of the copper-oxide high-temperature superconductors, drastic deviations from the Fermi liquid picture obtain, highlighted by a pseudogap, broad spectral features and $T-$ linear resistivity. This article focuses on the series of experiments on the copper-oxide superconductors which reveal that the number of low-energy addition states per electron"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0905.4637","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":"2026-05-18T02:13:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u7ZMZuU5N8VuKUNP5iD3LS0zG0fGsYX6kgnrvK2Z+Vvgq71OISFTupbKRmkk0b/rq285z1D+Qac4KhM63wfhDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:25:49.157386Z"},"content_sha256":"d3c46d9ed149712c61a85c609b246651991f8905158911f384093464be09e6ff","schema_version":"1.0","event_id":"sha256:d3c46d9ed149712c61a85c609b246651991f8905158911f384093464be09e6ff"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WKDM6QK5XUUTADLQ7L7D4UVAPN/bundle.json","state_url":"https://pith.science/pith/WKDM6QK5XUUTADLQ7L7D4UVAPN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WKDM6QK5XUUTADLQ7L7D4UVAPN/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":"2026-06-01T21:25:49Z","links":{"resolver":"https://pith.science/pith/WKDM6QK5XUUTADLQ7L7D4UVAPN","bundle":"https://pith.science/pith/WKDM6QK5XUUTADLQ7L7D4UVAPN/bundle.json","state":"https://pith.science/pith/WKDM6QK5XUUTADLQ7L7D4UVAPN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WKDM6QK5XUUTADLQ7L7D4UVAPN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:WKDM6QK5XUUTADLQ7L7D4UVAPN","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":"e56bf6c55eae0cdfddc73713f9b7b8aeab95d626a8c523008cb14fc5624d5846","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2009-05-28T14:05:07Z","title_canon_sha256":"7d47f310c2f4ca5c6848ae342818c0c21a08308026ca4ccd3d0722aefe036396"},"schema_version":"1.0","source":{"id":"0905.4637","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0905.4637","created_at":"2026-05-18T02:13:31Z"},{"alias_kind":"arxiv_version","alias_value":"0905.4637v1","created_at":"2026-05-18T02:13:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0905.4637","created_at":"2026-05-18T02:13:31Z"},{"alias_kind":"pith_short_12","alias_value":"WKDM6QK5XUUT","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"WKDM6QK5XUUTADLQ","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"WKDM6QK5","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:d3c46d9ed149712c61a85c609b246651991f8905158911f384093464be09e6ff","target":"graph","created_at":"2026-05-18T02:13:31Z","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 standard theory of metals, Fermi liquid theory, hinges on the key assumption that although the electrons interact, the low-energy excitation spectrum stands in a one-to-one correspondence with that of a non-interacting system. In the normal state of the copper-oxide high-temperature superconductors, drastic deviations from the Fermi liquid picture obtain, highlighted by a pseudogap, broad spectral features and $T-$ linear resistivity. This article focuses on the series of experiments on the copper-oxide superconductors which reveal that the number of low-energy addition states per electron","authors_text":"Philip Phillips, Robert G. Leigh, Ting-Pong Choy","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2009-05-28T14:05:07Z","title":"Mottness in High-Temperature Copper-Oxide Superconductors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0905.4637","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":"sha256:8ac977deb0eab933abc24d8d31b79238051ac8fdb53bdaedaa183dcb5dbe3516","target":"record","created_at":"2026-05-18T02:13:31Z","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":"e56bf6c55eae0cdfddc73713f9b7b8aeab95d626a8c523008cb14fc5624d5846","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2009-05-28T14:05:07Z","title_canon_sha256":"7d47f310c2f4ca5c6848ae342818c0c21a08308026ca4ccd3d0722aefe036396"},"schema_version":"1.0","source":{"id":"0905.4637","kind":"arxiv","version":1}},"canonical_sha256":"b286cf415dbd29300d70fafe3e52a07b740dadb2616477f1d08b46589d64b9c5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b286cf415dbd29300d70fafe3e52a07b740dadb2616477f1d08b46589d64b9c5","first_computed_at":"2026-05-18T02:13:31.160107Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:13:31.160107Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FmkvQRB9liGNxwUwdn4DdzFrVVpVBdevdujCI/6ZRuFqsrYfO/w5DVHfxBKj4f8vJXPqqTc2d2iOixY9Qf9iDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:13:31.160790Z","signed_message":"canonical_sha256_bytes"},"source_id":"0905.4637","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ac977deb0eab933abc24d8d31b79238051ac8fdb53bdaedaa183dcb5dbe3516","sha256:d3c46d9ed149712c61a85c609b246651991f8905158911f384093464be09e6ff"],"state_sha256":"a27bcb9253c0f59eb57825b20dc56ae10e47fb18d7a133ea874a4e05001e71d0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b7iE6g4W3qqyoZs5boFAwVbHZ1GPBGatJcfCfMA+Tq896mt6330ix3YNpzUeUcfnl91+QPY/C1Pj8m4V9o2GAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T21:25:49.159309Z","bundle_sha256":"32d3d8203e3325680cb50a2ed0a7ad87622c602a5bd15bcb038b5393b13adc09"}}