Pith Number

pith:UZIODCQP

pith:2026:UZIODCQPBDILJZ75OLAUOCZCS7

not attested not anchored not stored refs pending

Hidden Universal Metal in Cuprate Superconductors

Abigail Lee, Juergen Haase

A universal metal sets the critical temperature in all cuprate superconductors via a fixed nuclear relaxation ratio.

arxiv:2604.10133 v2 · 2026-04-11 · cond-mat.supr-con

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\usepackage{pith}
\pithnumber{UZIODCQPBDILJZ75OLAUOCZCS7}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

a universal metal, characterized by 1/{^{63}T}_{1⊥} T_c ≈ 25/Ks, found in all materials, i.e. T_c is directly related to the Cu nuclear relaxation rate.

C2weakest assumption

That relaxation data from the literature for different cuprate materials can be directly compared without significant systematic differences in sample quality, measurement conditions, or material-specific effects that would invalidate the claimed universality.

C3one line summary

A universal metal state exists in all cuprate superconductors with 1/^{63}T_{1⊥} Tc approximately constant at 25/Ks, directly tying Tc to Cu nuclear relaxation and explaining doping-dependent anisotropy.

Cited by

1 paper in Pith

Pseudogap and Condensation in Cuprate Superconductors from NMR Shifts

Receipt and verification

First computed	2026-06-01T02:03:40.358131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a650e18a0f08d0b4e7fd72c1470b2297da2ced6408985fcc24f8c2bfef12f90e

Aliases

arxiv: 2604.10133 · arxiv_version: 2604.10133v2 · doi: 10.48550/arxiv.2604.10133 · pith_short_12: UZIODCQPBDIL · pith_short_16: UZIODCQPBDILJZ75 · pith_short_8: UZIODCQP

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/UZIODCQPBDILJZ75OLAUOCZCS7 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a650e18a0f08d0b4e7fd72c1470b2297da2ced6408985fcc24f8c2bfef12f90e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e638479d53036a8e63cfff7759ca68d1b092e8eed62ad0ed6efb87f293b1a451",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2026-04-11T09:58:32Z",
    "title_canon_sha256": "e5446c9d2aedb694f39c53e98be088e86fd127ff97441f4059c062502c0468b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.10133",
    "kind": "arxiv",
    "version": 2
  }
}