Pith Number

pith:QY52EGDB

pith:2018:QY52EGDBXWIA5J324QFLICUULF

not attested not anchored not stored refs pending

XPS studies of nitrogen doping niobium used for accelerator applications

Deyu Yang, Jifei Zhao, Kui Zhou, Weiwei Tan, Xiangyang Lu, Yuan He, Yujia Yang, Ziqin Yang

arxiv:1804.07487 v1 · 2018-04-20 · physics.acc-ph · 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{QY52EGDBXWIA5J324QFLICUULF}

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	2026-05-18T00:17:58.674402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

863ba21861bd900ea77ae40ab40a9459680dcdb924864e030de922e802c389da

Aliases

arxiv: 1804.07487 · arxiv_version: 1804.07487v1 · doi: 10.48550/arxiv.1804.07487 · pith_short_12: QY52EGDBXWIA · pith_short_16: QY52EGDBXWIA5J32 · pith_short_8: QY52EGDB

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/QY52EGDBXWIA5J324QFLICUULF \
  | 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: 863ba21861bd900ea77ae40ab40a9459680dcdb924864e030de922e802c389da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f1d0ec61b30c4f21e2b7d98f325f9c1a4536805c116f78a51f71146a6b8266a",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2018-04-20T08:35:26Z",
    "title_canon_sha256": "1ed92a04c1d20a7a5cfd8dd54a62ad52fe3a651ebab86870eb8307ae28dd3f33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.07487",
    "kind": "arxiv",
    "version": 1
  }
}