Pith Number

pith:HFTQWH5X

pith:2019:HFTQWH5XQ7DENNVHB22YHQWMLD

not attested not anchored not stored refs pending

Discovery of room temperature ferromagnetism in metal-free organic semiconductors

Dehua Hu, Duokai Zhao, Huanhuan Zhang, Jiadong Zhou, Jiang Zhang, Manlin Zhao, Nan Zheng, Qinglin Jiang, Wenqiang Zhang, Xiaolong Li, Yao Yao, Yong Wang, Yuguang Ma, Zhongquan Mao

arxiv:1906.07531 v2 · 2019-06-18 · 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{HFTQWH5XQ7DENNVHB22YHQWMLD}

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	2026-05-17T23:39:23.882198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39670b1fb787c646b6a70eb583c2cc58eb1254c1f2f3ed148ad2951d5a24b866

Aliases

arxiv: 1906.07531 · arxiv_version: 1906.07531v2 · doi: 10.48550/arxiv.1906.07531 · pith_short_12: HFTQWH5XQ7DE · pith_short_16: HFTQWH5XQ7DENNVH · pith_short_8: HFTQWH5X

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/HFTQWH5XQ7DENNVHB22YHQWMLD \
  | 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: 39670b1fb787c646b6a70eb583c2cc58eb1254c1f2f3ed148ad2951d5a24b866

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef270c34c4ca16f1ebb4b50d4d02507f0ae1d07ff73ab053f1767526fbf92822",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2019-06-18T12:36:51Z",
    "title_canon_sha256": "52be5b4e0098307eecdfed66e782e81fcae6d1dccd4a128f3e2f4fea9706c02c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.07531",
    "kind": "arxiv",
    "version": 2
  }
}