{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:MKOGLVSHT3PISOLIUS3UVZUMFE","short_pith_number":"pith:MKOGLVSH","canonical_record":{"source":{"id":"cond-mat/0509223","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2005-09-08T20:40:02Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"0118e8ae48932d0a6836c2c981978b7d0f7735c88d419040dc7f35a08f103f70","abstract_canon_sha256":"9089e9e0bcd39ad519bfddeff0f25f743648d58abe1ee9ba756ab82cf201b6b9"},"schema_version":"1.0"},"canonical_sha256":"629c65d6479ede893968a4b74ae68c292b1b7136af42733259938b730d7c9708","source":{"kind":"arxiv","id":"cond-mat/0509223","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0509223","created_at":"2026-05-18T01:39:50Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0509223v3","created_at":"2026-05-18T01:39:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0509223","created_at":"2026-05-18T01:39:50Z"},{"alias_kind":"pith_short_12","alias_value":"MKOGLVSHT3PI","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"MKOGLVSHT3PISOLI","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"MKOGLVSH","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:MKOGLVSHT3PISOLIUS3UVZUMFE","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0509223","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2005-09-08T20:40:02Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"0118e8ae48932d0a6836c2c981978b7d0f7735c88d419040dc7f35a08f103f70","abstract_canon_sha256":"9089e9e0bcd39ad519bfddeff0f25f743648d58abe1ee9ba756ab82cf201b6b9"},"schema_version":"1.0"},"canonical_sha256":"629c65d6479ede893968a4b74ae68c292b1b7136af42733259938b730d7c9708","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:39:50.111343Z","signature_b64":"FU8JuKPn6J0kDX9hYzs2WgBv8Gc4EM42HVc7xddokav5GcL9QKLv0f34jl7sIyjthHTBQ/ZFq7FlwQzPFtrHAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"629c65d6479ede893968a4b74ae68c292b1b7136af42733259938b730d7c9708","last_reissued_at":"2026-05-18T01:39:50.110624Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:39:50.110624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0509223","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:39:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CTxTuG4WcWyy+uozCHHB/vxwWT/4qC2Nc/xlDvH3QmP+P+DL8hEKyQafOI/A//uqHQolRpz+AqqJuHGoC/ZLAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:32:52.921786Z"},"content_sha256":"4a81a4c41d43125e802f5b19c250259fcb3c74ea68e5c5146ebcd92d962faa5e","schema_version":"1.0","event_id":"sha256:4a81a4c41d43125e802f5b19c250259fcb3c74ea68e5c5146ebcd92d962faa5e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:MKOGLVSHT3PISOLIUS3UVZUMFE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Superfluid Density in a Highly Underdoped YBCO Superconductor","license":"","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"B. Morgan, D. A. Bonn, D. M. Broun, P. J. Turner, Ruixing Liang, S. Ozcan, W. A. Huttema, W. N. Hardy","submitted_at":"2005-09-08T20:40:02Z","abstract_excerpt":"The superfluid density rho_s(T) = 1/lambda^2(T) has been measured at 2.64 GHz in highly underdoped YBCO, at 37 dopings with T_c between 3 K and 17 K. Within limits set by the transition width Delta T_c ~ 0.4 K, rho_s(T) shows no evidence of critical fluctuations as T goes to T_c, with a mean-field-like transition and no indication of vortex unbinding. Instead, we propose that rho_s displays the behaviour expected for a quantum phase transition in the (3 + 1)-dimensional XY universality class, with rho_s0 ~ (p - p_c), T_c ~ (p - p_c)^1/2 and rho_s(T) ~ (T_c - T)^1 as T goes to T_c."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0509223","kind":"arxiv","version":3},"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":"2026-05-18T01:39:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tfzenepDyhvTBwUZ+MGfl8rBthD/kbS5g4484NjjEy3UmRPHgF7kJuOjlifXjGm+uCtUlHSludEHp7SXhZH5Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:32:52.922133Z"},"content_sha256":"e0caf3752da2ce1de1a456520b73bac414b94e12a2e583394ea90ff86c14f810","schema_version":"1.0","event_id":"sha256:e0caf3752da2ce1de1a456520b73bac414b94e12a2e583394ea90ff86c14f810"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MKOGLVSHT3PISOLIUS3UVZUMFE/bundle.json","state_url":"https://pith.science/pith/MKOGLVSHT3PISOLIUS3UVZUMFE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MKOGLVSHT3PISOLIUS3UVZUMFE/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":"2026-05-28T08:32:52Z","links":{"resolver":"https://pith.science/pith/MKOGLVSHT3PISOLIUS3UVZUMFE","bundle":"https://pith.science/pith/MKOGLVSHT3PISOLIUS3UVZUMFE/bundle.json","state":"https://pith.science/pith/MKOGLVSHT3PISOLIUS3UVZUMFE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MKOGLVSHT3PISOLIUS3UVZUMFE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:MKOGLVSHT3PISOLIUS3UVZUMFE","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":"9089e9e0bcd39ad519bfddeff0f25f743648d58abe1ee9ba756ab82cf201b6b9","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2005-09-08T20:40:02Z","title_canon_sha256":"0118e8ae48932d0a6836c2c981978b7d0f7735c88d419040dc7f35a08f103f70"},"schema_version":"1.0","source":{"id":"cond-mat/0509223","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0509223","created_at":"2026-05-18T01:39:50Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0509223v3","created_at":"2026-05-18T01:39:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0509223","created_at":"2026-05-18T01:39:50Z"},{"alias_kind":"pith_short_12","alias_value":"MKOGLVSHT3PI","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"MKOGLVSHT3PISOLI","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"MKOGLVSH","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:e0caf3752da2ce1de1a456520b73bac414b94e12a2e583394ea90ff86c14f810","target":"graph","created_at":"2026-05-18T01:39:50Z","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 superfluid density rho_s(T) = 1/lambda^2(T) has been measured at 2.64 GHz in highly underdoped YBCO, at 37 dopings with T_c between 3 K and 17 K. Within limits set by the transition width Delta T_c ~ 0.4 K, rho_s(T) shows no evidence of critical fluctuations as T goes to T_c, with a mean-field-like transition and no indication of vortex unbinding. Instead, we propose that rho_s displays the behaviour expected for a quantum phase transition in the (3 + 1)-dimensional XY universality class, with rho_s0 ~ (p - p_c), T_c ~ (p - p_c)^1/2 and rho_s(T) ~ (T_c - T)^1 as T goes to T_c.","authors_text":"B. Morgan, D. A. Bonn, D. M. Broun, P. J. Turner, Ruixing Liang, S. Ozcan, W. A. Huttema, W. N. Hardy","cross_cats":["cond-mat.str-el"],"headline":"","license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2005-09-08T20:40:02Z","title":"Superfluid Density in a Highly Underdoped YBCO Superconductor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0509223","kind":"arxiv","version":3},"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":"sha256:4a81a4c41d43125e802f5b19c250259fcb3c74ea68e5c5146ebcd92d962faa5e","target":"record","created_at":"2026-05-18T01:39:50Z","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":"9089e9e0bcd39ad519bfddeff0f25f743648d58abe1ee9ba756ab82cf201b6b9","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2005-09-08T20:40:02Z","title_canon_sha256":"0118e8ae48932d0a6836c2c981978b7d0f7735c88d419040dc7f35a08f103f70"},"schema_version":"1.0","source":{"id":"cond-mat/0509223","kind":"arxiv","version":3}},"canonical_sha256":"629c65d6479ede893968a4b74ae68c292b1b7136af42733259938b730d7c9708","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"629c65d6479ede893968a4b74ae68c292b1b7136af42733259938b730d7c9708","first_computed_at":"2026-05-18T01:39:50.110624Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:39:50.110624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FU8JuKPn6J0kDX9hYzs2WgBv8Gc4EM42HVc7xddokav5GcL9QKLv0f34jl7sIyjthHTBQ/ZFq7FlwQzPFtrHAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:39:50.111343Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0509223","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4a81a4c41d43125e802f5b19c250259fcb3c74ea68e5c5146ebcd92d962faa5e","sha256:e0caf3752da2ce1de1a456520b73bac414b94e12a2e583394ea90ff86c14f810"],"state_sha256":"15eed0dd35a081af709abbdc7118de1943866da52280c4a40f157c5ed97b733d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ey9JHcAepcAXf1/kRyldEC29oy+yirsKtG8Zyw4h9pBMpgvdFlWPh2VF3U4DMC4zO9LnL0SuFftxNU/Iify5Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T08:32:52.924091Z","bundle_sha256":"193abadcdec4e45771d310066a6d8af381b7aa167d208e4f41611a5d48f5c3ce"}}