Pith Number

pith:STDACZFU

pith:2017:STDACZFUJXSPO2EUVTTEN4RLTB

not attested not anchored not stored refs pending

$^{57}$Fe M\"ossbauer study of stoichiometric iron based superconductor CaKFe$_4$As$_4$: a comparison to KFe$_2$As$_2$ and CaFe$_2$As$_2$

Paul C. Canfield, Sergey L. Bud'ko, Tai Kong, William R. Meier, Xiaoming Ma

arxiv:1701.04104 v1 · 2017-01-15 · cond-mat.supr-con · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{STDACZFUJXSPO2EUVTTEN4RLTB}

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

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	2026-05-18T00:31:41.731602Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94c60164b44de4f76894ace646f22b98559b2f53d7e1fee50e13bfc5a495ba31

Aliases

arxiv: 1701.04104 · arxiv_version: 1701.04104v1 · doi: 10.48550/arxiv.1701.04104 · pith_short_12: STDACZFUJXSP · pith_short_16: STDACZFUJXSPO2EU · pith_short_8: STDACZFU

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/STDACZFUJXSPO2EUVTTEN4RLTB \
  | 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: 94c60164b44de4f76894ace646f22b98559b2f53d7e1fee50e13bfc5a495ba31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83a450e3425e6361e70b2eabc2a73d150a96389eb766767cbdc2f78212e945af",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2017-01-15T19:54:10Z",
    "title_canon_sha256": "0a8ea334556b54e66996638f9c271fcfe442a9c500b54d7c1155d16fe3e9c86a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.04104",
    "kind": "arxiv",
    "version": 1
  }
}