Pith Number

pith:BHMLDYBN

pith:2009:BHMLDYBNIEQZOJA45JB3HXKOW5

not attested not anchored not stored refs pending

Superconductivity at 22.3 K in SrFe2-xIrxAs2

Bing Shen, Fei Han, Hai-Hu Wen, Huiqian Luo, Lei Fang, Peng Cheng, Xiyu Zhu, Ying Jia

arxiv:0902.3957 v2 · 2009-02-23 · cond-mat.supr-con · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BHMLDYBNIEQZOJA45JB3HXKOW5}

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	2026-05-18T01:11:55.653212Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09d8b1e02d412197241cea43b3dd4eb74b94d2ed28dbb97c876dd717b2825ae3

Aliases

arxiv: 0902.3957 · arxiv_version: 0902.3957v2 · doi: 10.48550/arxiv.0902.3957 · pith_short_12: BHMLDYBNIEQZ · pith_short_16: BHMLDYBNIEQZOJA4 · pith_short_8: BHMLDYBN

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/BHMLDYBNIEQZOJA45JB3HXKOW5 \
  | 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: 09d8b1e02d412197241cea43b3dd4eb74b94d2ed28dbb97c876dd717b2825ae3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8296e8590b6186d5bc5bb16bbd8d3d918d6327dc4df83fe07bf29a420268e051",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2009-02-23T17:16:29Z",
    "title_canon_sha256": "a1286c8450f23299778fc5f790b6c25581a0a7167dc65aa773e4f4a62bd357be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.3957",
    "kind": "arxiv",
    "version": 2
  }
}