Pith Number

pith:OQB4CHYL

pith:2012:OQB4CHYL3RJTOVRXMGYTWOVWIM

not attested not anchored not stored refs pending

Abrupt change in the energy gap of superconducting Ba1-xKxFe2As2 single crystals with hole doping

A. Iyo, C. H. Lee, C.-T. Chen, H. Eisaki, H. Fukazawa, H. Ikeda, K. Kihou, K. Ohgushi, K. Okazaki, M. Nakajima, S. Ishida, S. Shin, S. Uchida, S. Watanabe, T. Saito, T. Shimojima, W. Malaeb, Y. Ishida, Y. Kohori, Y. Ota

arxiv:1204.0326 v1 · 2012-04-02 · 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{OQB4CHYL3RJTOVRXMGYTWOVWIM}

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	2026-05-18T03:43:29.587512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7403c11f0bdc5337563761b13b3ab6431638ad75316aede8bf57a9f57ef9bede

Aliases

arxiv: 1204.0326 · arxiv_version: 1204.0326v1 · doi: 10.48550/arxiv.1204.0326 · pith_short_12: OQB4CHYL3RJT · pith_short_16: OQB4CHYL3RJTOVRX · pith_short_8: OQB4CHYL

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/OQB4CHYL3RJTOVRXMGYTWOVWIM \
  | 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: 7403c11f0bdc5337563761b13b3ab6431638ad75316aede8bf57a9f57ef9bede

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac7d477359bb3a1cad3fdd1e71aa0c4f1b1ac6b6a41b2ce2a6197bfd07f1cbab",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2012-04-02T07:00:20Z",
    "title_canon_sha256": "d238b87bcf930a766d2fd0c2ef2d3d900f686fabd91e05afe45cad4646b17bd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0326",
    "kind": "arxiv",
    "version": 1
  }
}