Pith Number

pith:4M2PLWZ4

pith:2013:4M2PLWZ4AX73ZKBDFK3T3NMR7N

not attested not anchored not stored refs pending

Upper critical field of high quality single crystals of KFe$_2$As$_2$

Hyunsoo Kim, M. A. Tanatar, R. Prozorov, T. A. Lograsso, V. G. Kogan, Yong Liu

arxiv:1304.2689 v1 · 2013-04-09 · 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{4M2PLWZ4AX73ZKBDFK3T3NMR7N}

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	2026-05-18T01:50:40.946745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e334f5db3c05ffbca8232ab73db591fb75e1c21f8361ecfb4268fff35cf1a29a

Aliases

arxiv: 1304.2689 · arxiv_version: 1304.2689v1 · doi: 10.48550/arxiv.1304.2689 · pith_short_12: 4M2PLWZ4AX73 · pith_short_16: 4M2PLWZ4AX73ZKBD · pith_short_8: 4M2PLWZ4

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/4M2PLWZ4AX73ZKBDFK3T3NMR7N \
  | 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: e334f5db3c05ffbca8232ab73db591fb75e1c21f8361ecfb4268fff35cf1a29a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f2ee8b19f2cbce1a432c9a9c5206fca8d16abd40d413cdb26b49df287d86c83",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2013-04-09T18:27:54Z",
    "title_canon_sha256": "305feafd00bc2971a60ff64be285d5ebbfa707e3c4a8b5d0d0a776b8853984c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2689",
    "kind": "arxiv",
    "version": 1
  }
}