Pith Number

pith:SQ3QV4V6

pith:1999:SQ3QV4V6D5DSMA5OHCQT6QW2BR

not attested not anchored not stored refs pending

s-wave superconductivity in the presence of local Coulomb correlations

A.A. Schmidt, J.J. Rodr\'iguez-N\'u\~nez (UFSM-Brazil)

arxiv:cond-mat/9907448 v1 · 1999-07-28 · 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{SQ3QV4V6D5DSMA5OHCQT6QW2BR}

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	2026-05-18T01:09:19.786518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94370af2be1f472603ae38a13f42da0c666e76b68bcf4cd43264432f8400920a

Aliases

arxiv: cond-mat/9907448 · arxiv_version: cond-mat/9907448v1 · doi: 10.48550/arxiv.cond-mat/9907448 · pith_short_12: SQ3QV4V6D5DS · pith_short_16: SQ3QV4V6D5DSMA5O · pith_short_8: SQ3QV4V6

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/SQ3QV4V6D5DSMA5OHCQT6QW2BR \
  | 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: 94370af2be1f472603ae38a13f42da0c666e76b68bcf4cd43264432f8400920a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6197f31c59d77cfaee947e4acf977629b9af06799978aa905167d3d3ff9a5aa",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "1999-07-28T17:27:02Z",
    "title_canon_sha256": "819f11a2a4dbc9a3f4e1d0d2e77690aac8a9192d29d3b04bf100f1fa4f0dfbd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/9907448",
    "kind": "arxiv",
    "version": 1
  }
}