Pith Number

pith:HGVWWYLK

pith:2019:HGVWWYLKXV35LWAIQDULSG2H3P

not attested not anchored not stored refs pending

Absence of Superconductivity in Nd$_{0.8}$Sr$_{0.2}$NiO$_x$ Thin Films without Chemical Reduction

Han Yan, Hao-Jiang Wu, Hong-Yu Chen, Hui-Xin Guo, Pei-Xin Qin, Shuai Hu, Xiao-Ning Wang, Xiao-Rong Zhou, Xin Zhang, Xue-Peng Qiu, Ze-Xin Feng, Zhi-Qi Liu

arxiv:1911.04662 v2 · 2019-11-12 · cond-mat.supr-con · cond-mat.mtrl-sci · physics.app-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HGVWWYLKXV35LWAIQDULSG2H3P}

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	2026-07-05T00:57:50.864981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39ab6b616abd77d5d80880e8b91b47dbe1806d3f2202e35689a6d722ff4b11ae

Aliases

arxiv: 1911.04662 · arxiv_version: 1911.04662v2 · doi: 10.48550/arxiv.1911.04662 · pith_short_12: HGVWWYLKXV35 · pith_short_16: HGVWWYLKXV35LWAI · pith_short_8: HGVWWYLK

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/HGVWWYLKXV35LWAIQDULSG2H3P \
  | 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: 39ab6b616abd77d5d80880e8b91b47dbe1806d3f2202e35689a6d722ff4b11ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f04c174ea011d13a97dd615b107724d1513958a747729a0019c9c5a79902318b",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2019-11-12T04:02:20Z",
    "title_canon_sha256": "0f04ab0c55300746b62bfded4b6c71a72a9446750e562dbe4d2f8becf64235bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.04662",
    "kind": "arxiv",
    "version": 2
  }
}