Pith Number

pith:NPT42ATX

pith:2010:NPT42ATX7BTUNIJNOYL7KFRF2F

not attested not anchored not stored refs pending

Low-temperature synthesis of SmO0.8F0.2FeAs superconductor with Tc = 56.1K

Chao Yao, Chunlei Wang, Dongliang Wang, Lei Wang, Yanpeng Qi, Yanwei Ma, Zhaoshun Gao, Zhiyu Zhang

arxiv:1003.0171 v1 · 2010-02-28 · 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{NPT42ATX7BTUNIJNOYL7KFRF2F}

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	2026-05-18T02:08:48.397977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6be7cd0277f86746a12d7617f51625d179698f12f15b8988a43dbf2a7b777b67

Aliases

arxiv: 1003.0171 · arxiv_version: 1003.0171v1 · doi: 10.48550/arxiv.1003.0171 · pith_short_12: NPT42ATX7BTU · pith_short_16: NPT42ATX7BTUNIJN · pith_short_8: NPT42ATX

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/NPT42ATX7BTUNIJNOYL7KFRF2F \
  | 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: 6be7cd0277f86746a12d7617f51625d179698f12f15b8988a43dbf2a7b777b67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f32a32c34b972bcc8b6e0419053ad72bbc80db1a53ca9f72108295c1790e5c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2010-02-28T09:24:48Z",
    "title_canon_sha256": "f25241a885c3b782783f83da4377310b49649e5d266e04671d949a493771d46a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.0171",
    "kind": "arxiv",
    "version": 1
  }
}