{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:6Y7ZUCJFK2E75NAUV5TOYRRVHZ","short_pith_number":"pith:6Y7ZUCJF","canonical_record":{"source":{"id":"1712.03339","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-12-09T04:45:21Z","cross_cats_sorted":[],"title_canon_sha256":"3046765925c78c89151be0ea8f00105ab926d8defcbb4c46c0723916e8a85310","abstract_canon_sha256":"ca1f1d6eb9b4909d7f1e88de58c462426976ec40c41d584525fe71819dce4901"},"schema_version":"1.0"},"canonical_sha256":"f63f9a09255689feb414af66ec46353e72372ab3c23f011bca6fcbf515e55399","source":{"kind":"arxiv","id":"1712.03339","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.03339","created_at":"2026-05-18T00:28:21Z"},{"alias_kind":"arxiv_version","alias_value":"1712.03339v1","created_at":"2026-05-18T00:28:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.03339","created_at":"2026-05-18T00:28:21Z"},{"alias_kind":"pith_short_12","alias_value":"6Y7ZUCJFK2E7","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"6Y7ZUCJFK2E75NAU","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"6Y7ZUCJF","created_at":"2026-05-18T12:31:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:6Y7ZUCJFK2E75NAUV5TOYRRVHZ","target":"record","payload":{"canonical_record":{"source":{"id":"1712.03339","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-12-09T04:45:21Z","cross_cats_sorted":[],"title_canon_sha256":"3046765925c78c89151be0ea8f00105ab926d8defcbb4c46c0723916e8a85310","abstract_canon_sha256":"ca1f1d6eb9b4909d7f1e88de58c462426976ec40c41d584525fe71819dce4901"},"schema_version":"1.0"},"canonical_sha256":"f63f9a09255689feb414af66ec46353e72372ab3c23f011bca6fcbf515e55399","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:28:21.606567Z","signature_b64":"CkZ2orMtkrCzdpdhdieI6fq/RRfsy0Nh0dn0pyTYX3XcGakroHjkgOzzntOzoknTHb5UdHQkPFKru4Sbwd9uBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f63f9a09255689feb414af66ec46353e72372ab3c23f011bca6fcbf515e55399","last_reissued_at":"2026-05-18T00:28:21.605930Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:28:21.605930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1712.03339","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":"2026-05-18T00:28:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qTT+FXXqBM3q6Nc56/zOUSz2iMEkTbcnfSC59qBrGKKpVU4Y08voBcMk7PkWD23e1FKLNhdPNxWOSpCepxm9Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T09:05:47.076889Z"},"content_sha256":"b6142b9f6833214bd2759551159996c76d61ad250fc779ed17d819428af80dd2","schema_version":"1.0","event_id":"sha256:b6142b9f6833214bd2759551159996c76d61ad250fc779ed17d819428af80dd2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:6Y7ZUCJFK2E75NAUV5TOYRRVHZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Revealing the Coulomb interaction strength in a cuprate superconductor","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"B. Moritz, D. H. Lu, D. Leuenberger, H. Eisaki, H. Soifer, J. A. Sobota, M. Hashimoto, P. S. Kirchmann, S.-L. Yang, T. P. Devereaux, Y. He, Y. Wang, Z.-X. Shen","submitted_at":"2017-12-09T04:45:21Z","abstract_excerpt":"We study optimally doped Bi$_{2}$Sr$_{2}$Ca$_{0.92}$Y$_{0.08}$Cu$_{2}$O$_{8+\\delta}$ (Bi2212) using angle-resolved two-photon photoemission spectroscopy. Three spectral features are resolved near 1.5, 2.7, and 3.6 eV above the Fermi level. By tuning the photon energy, we determine that the 2.7-eV feature arises predominantly from unoccupied states. The 1.5- and 3.6-eV features reflect unoccupied states whose spectral intensities are strongly modulated by the corresponding occupied states. These unoccupied states are consistent with the prediction from a cluster perturbation theory based on the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.03339","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":"2026-05-18T00:28:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hIff/LuEO8AH0gYJu6JwBCIOP2Q71gv4HfkA6wPzFuthNyTJx+ojW+8WYPC2aAtzOvtll3fYaB56VfIwYoOFAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T09:05:47.077246Z"},"content_sha256":"69f0ff19c48b65abb2689ba58a1879085462e4e4f99d585c972208d53284dc95","schema_version":"1.0","event_id":"sha256:69f0ff19c48b65abb2689ba58a1879085462e4e4f99d585c972208d53284dc95"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6Y7ZUCJFK2E75NAUV5TOYRRVHZ/bundle.json","state_url":"https://pith.science/pith/6Y7ZUCJFK2E75NAUV5TOYRRVHZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6Y7ZUCJFK2E75NAUV5TOYRRVHZ/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":"2026-06-05T09:05:47Z","links":{"resolver":"https://pith.science/pith/6Y7ZUCJFK2E75NAUV5TOYRRVHZ","bundle":"https://pith.science/pith/6Y7ZUCJFK2E75NAUV5TOYRRVHZ/bundle.json","state":"https://pith.science/pith/6Y7ZUCJFK2E75NAUV5TOYRRVHZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6Y7ZUCJFK2E75NAUV5TOYRRVHZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:6Y7ZUCJFK2E75NAUV5TOYRRVHZ","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":"ca1f1d6eb9b4909d7f1e88de58c462426976ec40c41d584525fe71819dce4901","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-12-09T04:45:21Z","title_canon_sha256":"3046765925c78c89151be0ea8f00105ab926d8defcbb4c46c0723916e8a85310"},"schema_version":"1.0","source":{"id":"1712.03339","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.03339","created_at":"2026-05-18T00:28:21Z"},{"alias_kind":"arxiv_version","alias_value":"1712.03339v1","created_at":"2026-05-18T00:28:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.03339","created_at":"2026-05-18T00:28:21Z"},{"alias_kind":"pith_short_12","alias_value":"6Y7ZUCJFK2E7","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"6Y7ZUCJFK2E75NAU","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"6Y7ZUCJF","created_at":"2026-05-18T12:31:03Z"}],"graph_snapshots":[{"event_id":"sha256:69f0ff19c48b65abb2689ba58a1879085462e4e4f99d585c972208d53284dc95","target":"graph","created_at":"2026-05-18T00:28:21Z","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 optimally doped Bi$_{2}$Sr$_{2}$Ca$_{0.92}$Y$_{0.08}$Cu$_{2}$O$_{8+\\delta}$ (Bi2212) using angle-resolved two-photon photoemission spectroscopy. Three spectral features are resolved near 1.5, 2.7, and 3.6 eV above the Fermi level. By tuning the photon energy, we determine that the 2.7-eV feature arises predominantly from unoccupied states. The 1.5- and 3.6-eV features reflect unoccupied states whose spectral intensities are strongly modulated by the corresponding occupied states. These unoccupied states are consistent with the prediction from a cluster perturbation theory based on the","authors_text":"B. Moritz, D. H. Lu, D. Leuenberger, H. Eisaki, H. Soifer, J. A. Sobota, M. Hashimoto, P. S. Kirchmann, S.-L. Yang, T. P. Devereaux, Y. He, Y. Wang, Z.-X. Shen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-12-09T04:45:21Z","title":"Revealing the Coulomb interaction strength in a cuprate superconductor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.03339","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:b6142b9f6833214bd2759551159996c76d61ad250fc779ed17d819428af80dd2","target":"record","created_at":"2026-05-18T00:28:21Z","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":"ca1f1d6eb9b4909d7f1e88de58c462426976ec40c41d584525fe71819dce4901","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-12-09T04:45:21Z","title_canon_sha256":"3046765925c78c89151be0ea8f00105ab926d8defcbb4c46c0723916e8a85310"},"schema_version":"1.0","source":{"id":"1712.03339","kind":"arxiv","version":1}},"canonical_sha256":"f63f9a09255689feb414af66ec46353e72372ab3c23f011bca6fcbf515e55399","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f63f9a09255689feb414af66ec46353e72372ab3c23f011bca6fcbf515e55399","first_computed_at":"2026-05-18T00:28:21.605930Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:28:21.605930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CkZ2orMtkrCzdpdhdieI6fq/RRfsy0Nh0dn0pyTYX3XcGakroHjkgOzzntOzoknTHb5UdHQkPFKru4Sbwd9uBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:28:21.606567Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.03339","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b6142b9f6833214bd2759551159996c76d61ad250fc779ed17d819428af80dd2","sha256:69f0ff19c48b65abb2689ba58a1879085462e4e4f99d585c972208d53284dc95"],"state_sha256":"ab6c09e4ed18225e5c45f500a4be51968eea7b07bf6a6ff8498d6158381fbc7b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D3AP5ROCneaC/KLPfPecaNio2wuxLvQGcS4DutKbphkEXy9W5e6WkWwhZ0uMS1bUEEq4garr60NR1nsFVSktAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T09:05:47.079497Z","bundle_sha256":"93b2d360cc19a4204fc04dd0b281d9b13cc6232424c7f9830b8e3282bc963d16"}}