{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:7NR2ZWSUNLB5MEPNCXUMJLNGF3","short_pith_number":"pith:7NR2ZWSU","canonical_record":{"source":{"id":"0909.3358","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-09-18T06:20:54Z","cross_cats_sorted":[],"title_canon_sha256":"186e5af5b486149daa614fa3ba6162c0a690fe95d8e5253a9a82a31f56d19961","abstract_canon_sha256":"ffec3cd20e698a4275ca74995c3d8cd7de55ed87f920784112c6dda2acba5464"},"schema_version":"1.0"},"canonical_sha256":"fb63acda546ac3d611ed15e8c4ada62ee7c8998c98ac4a9e22bef90b7f3ac2fc","source":{"kind":"arxiv","id":"0909.3358","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.3358","created_at":"2026-05-18T04:34:19Z"},{"alias_kind":"arxiv_version","alias_value":"0909.3358v1","created_at":"2026-05-18T04:34:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.3358","created_at":"2026-05-18T04:34:19Z"},{"alias_kind":"pith_short_12","alias_value":"7NR2ZWSUNLB5","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"7NR2ZWSUNLB5MEPN","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"7NR2ZWSU","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:7NR2ZWSUNLB5MEPNCXUMJLNGF3","target":"record","payload":{"canonical_record":{"source":{"id":"0909.3358","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-09-18T06:20:54Z","cross_cats_sorted":[],"title_canon_sha256":"186e5af5b486149daa614fa3ba6162c0a690fe95d8e5253a9a82a31f56d19961","abstract_canon_sha256":"ffec3cd20e698a4275ca74995c3d8cd7de55ed87f920784112c6dda2acba5464"},"schema_version":"1.0"},"canonical_sha256":"fb63acda546ac3d611ed15e8c4ada62ee7c8998c98ac4a9e22bef90b7f3ac2fc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:34:19.690873Z","signature_b64":"mftb1i237s99LaGT1132CcUMFZL40i6YaI7GLY88hB1cqUqiVytp1EkH8GozeBD5kef7oaVWjvnZOrXtB1PYAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb63acda546ac3d611ed15e8c4ada62ee7c8998c98ac4a9e22bef90b7f3ac2fc","last_reissued_at":"2026-05-18T04:34:19.690406Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:34:19.690406Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0909.3358","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":"2026-05-18T04:34:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kInXGUlJd/eXPVaFJTm55Y1LiQlwuA0oGKfudjB7FQ9OmESYF7RE5kxf/ghxkK745qIgdTSRvZuYdVBdMMiCCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:42:40.890146Z"},"content_sha256":"f279e3262f4db4c750689fe12251af5502200274e5c3b1508476b8667c584a6e","schema_version":"1.0","event_id":"sha256:f279e3262f4db4c750689fe12251af5502200274e5c3b1508476b8667c584a6e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:7NR2ZWSUNLB5MEPNCXUMJLNGF3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Possible Microscopic Doping Mechanism in Tl-2201","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"D.A. Bonn, D.C. Peets, D.G. Hawthorn, Ruixing Liang, W.N. Hardy","submitted_at":"2009-09-18T06:20:54Z","abstract_excerpt":"X-ray absorption spectroscopy on oxygen-annealed, self-flux-grown single crystals of Tl-2201 suggests a microscopic doping mechanism whereby interstitial oxygens are attracted to copper substituted on the thallium site, contributing holes to both the planes and to these coppers, and typically promoting only one hole to the plane rather than two. These copper substituents would provide an intrinsic hole doping. The evidence for this is discussed, along with an alternative interpretation."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.3358","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":"2026-05-18T04:34:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fDcoZ8d98YdlVmgUOCyLFaH226T+U7HSfmqd/NXP00YttBkT+wvbqJsdVN/olrZacdZz5D1JoZBZ9h8rzYCWCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:42:40.890844Z"},"content_sha256":"aa1e5b0b559a291164708afa280883ef0d42c36b27e5982a6b62156abf253cbe","schema_version":"1.0","event_id":"sha256:aa1e5b0b559a291164708afa280883ef0d42c36b27e5982a6b62156abf253cbe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7NR2ZWSUNLB5MEPNCXUMJLNGF3/bundle.json","state_url":"https://pith.science/pith/7NR2ZWSUNLB5MEPNCXUMJLNGF3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7NR2ZWSUNLB5MEPNCXUMJLNGF3/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":"2026-05-25T16:42:40Z","links":{"resolver":"https://pith.science/pith/7NR2ZWSUNLB5MEPNCXUMJLNGF3","bundle":"https://pith.science/pith/7NR2ZWSUNLB5MEPNCXUMJLNGF3/bundle.json","state":"https://pith.science/pith/7NR2ZWSUNLB5MEPNCXUMJLNGF3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7NR2ZWSUNLB5MEPNCXUMJLNGF3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:7NR2ZWSUNLB5MEPNCXUMJLNGF3","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":"ffec3cd20e698a4275ca74995c3d8cd7de55ed87f920784112c6dda2acba5464","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-09-18T06:20:54Z","title_canon_sha256":"186e5af5b486149daa614fa3ba6162c0a690fe95d8e5253a9a82a31f56d19961"},"schema_version":"1.0","source":{"id":"0909.3358","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.3358","created_at":"2026-05-18T04:34:19Z"},{"alias_kind":"arxiv_version","alias_value":"0909.3358v1","created_at":"2026-05-18T04:34:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.3358","created_at":"2026-05-18T04:34:19Z"},{"alias_kind":"pith_short_12","alias_value":"7NR2ZWSUNLB5","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"7NR2ZWSUNLB5MEPN","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"7NR2ZWSU","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:aa1e5b0b559a291164708afa280883ef0d42c36b27e5982a6b62156abf253cbe","target":"graph","created_at":"2026-05-18T04:34:19Z","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":"X-ray absorption spectroscopy on oxygen-annealed, self-flux-grown single crystals of Tl-2201 suggests a microscopic doping mechanism whereby interstitial oxygens are attracted to copper substituted on the thallium site, contributing holes to both the planes and to these coppers, and typically promoting only one hole to the plane rather than two. These copper substituents would provide an intrinsic hole doping. The evidence for this is discussed, along with an alternative interpretation.","authors_text":"D.A. Bonn, D.C. Peets, D.G. Hawthorn, Ruixing Liang, W.N. Hardy","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-09-18T06:20:54Z","title":"Possible Microscopic Doping Mechanism in Tl-2201"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.3358","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:f279e3262f4db4c750689fe12251af5502200274e5c3b1508476b8667c584a6e","target":"record","created_at":"2026-05-18T04:34:19Z","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":"ffec3cd20e698a4275ca74995c3d8cd7de55ed87f920784112c6dda2acba5464","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-09-18T06:20:54Z","title_canon_sha256":"186e5af5b486149daa614fa3ba6162c0a690fe95d8e5253a9a82a31f56d19961"},"schema_version":"1.0","source":{"id":"0909.3358","kind":"arxiv","version":1}},"canonical_sha256":"fb63acda546ac3d611ed15e8c4ada62ee7c8998c98ac4a9e22bef90b7f3ac2fc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fb63acda546ac3d611ed15e8c4ada62ee7c8998c98ac4a9e22bef90b7f3ac2fc","first_computed_at":"2026-05-18T04:34:19.690406Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:34:19.690406Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mftb1i237s99LaGT1132CcUMFZL40i6YaI7GLY88hB1cqUqiVytp1EkH8GozeBD5kef7oaVWjvnZOrXtB1PYAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:34:19.690873Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.3358","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f279e3262f4db4c750689fe12251af5502200274e5c3b1508476b8667c584a6e","sha256:aa1e5b0b559a291164708afa280883ef0d42c36b27e5982a6b62156abf253cbe"],"state_sha256":"e00f69e41f3543175cef9f64b07f6c2a8761760033f0291e06c1f70a64b924cb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s4gsM/ygAMXolUyCyiBrVLTlCFe6Iww4mWnwb+3F4T54y8VIYLruyAEVB4vM12UtsWJlg4lS6Xy1X/fmDYdDBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T16:42:40.894763Z","bundle_sha256":"d6092da1102e4ff3a96942d21490cde89302c6c8f23ff1d043de8c77226f7be6"}}