Pith Number

pith:ENGZ64Y2

pith:2009:ENGZ64Y2XZITEIIHQTDYUJRDWA

not attested not anchored not stored refs pending

BCS Superconductivity in Quantum Critical Metals

Jan Zaanen, Jian-Huang She

arxiv:0905.1225 v2 · 2009-05-08 · cond-mat.supr-con · cond-mat.str-el

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ENGZ64Y2XZITEIIHQTDYUJRDWA}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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.

Receipt and verification

First computed	2026-05-18T01:14:45.977465Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

234d9f731abe5132210784c78a2623b034d2624dc08c7dfa6c6757efde893f9b

Aliases

arxiv: 0905.1225 · arxiv_version: 0905.1225v2 · doi: 10.48550/arxiv.0905.1225 · pith_short_12: ENGZ64Y2XZIT · pith_short_16: ENGZ64Y2XZITEIIH · pith_short_8: ENGZ64Y2

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/ENGZ64Y2XZITEIIHQTDYUJRDWA \
  | 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: 234d9f731abe5132210784c78a2623b034d2624dc08c7dfa6c6757efde893f9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d663e2235f479e5e42795a25933f70d469947e3a74f5ebe57a044c4fc9aff61",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2009-05-08T13:22:39Z",
    "title_canon_sha256": "1449007d312c70b294824a45460bc75052adcf650ac2062a1d714effeafe69fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1225",
    "kind": "arxiv",
    "version": 2
  }
}