Pith Number

pith:44ZXFNPN

pith:2013:44ZXFNPN4KFHKUOM6GX46LAERZ

not attested not anchored not stored refs pending

Evidence of d-wave Superconductivity in K_(1-x)Na_xFe_2As_2 (x = 0, 0.1) Single Crystals from Low-Temperature Specific Heat Measurements

A. Reifenberger, A. U. B. Wolter, B. Buechner, C. Enss, C. Hess, D. V. Efremov, E. L. Green, H. Rosner, I. Morozov, J. van den Brink, J. Wosnitza, M. Abdel-Hafiez, M. Hempel, M. Kumar, M. Roslova, O. Vakaliuk, P. Vogt, R. Klingeler, S. Aswartham, S. Johnston, S.-L. Drechsler, S. Wurmehl, V. Grinenko

arxiv:1301.5257 v3 · 2013-01-22 · cond-mat.supr-con

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{44ZXFNPN4KFHKUOM6GX46LAERZ}

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	2026-05-18T01:52:04.605033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e73372b5ede28a7551ccf1afcf2c048e5302a8fd80043e8881653f6a5075fa8c

Aliases

arxiv: 1301.5257 · arxiv_version: 1301.5257v3 · doi: 10.48550/arxiv.1301.5257 · pith_short_12: 44ZXFNPN4KFH · pith_short_16: 44ZXFNPN4KFHKUOM · pith_short_8: 44ZXFNPN

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/44ZXFNPN4KFHKUOM6GX46LAERZ \
  | 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: e73372b5ede28a7551ccf1afcf2c048e5302a8fd80043e8881653f6a5075fa8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba1b50b16b789c9ba6aca488564a81d4b6b5013f29690aea92b1ab14045daaae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2013-01-22T18:00:04Z",
    "title_canon_sha256": "69e88d6508411dbb2c22a9569ece03630dbb3bcf3dc266d4eee26ce8440cc65d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.5257",
    "kind": "arxiv",
    "version": 3
  }
}