Pith Number

pith:QYLMTNDV

pith:2020:QYLMTNDV4JLM35WKLIVCWCVDVT

not attested not anchored not stored refs pending

When the Open Source Community Meets COVID-19: Characterizing COVID-19 themed GitHub Repositories

Guangdong Bai, Haoyu Wang, Jiaxin Zhu, Liu Wang, Ruiqing Li

arxiv:2010.12218 v1 · 2020-10-23 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QYLMTNDV4JLM35WKLIVCWCVDVT}

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	2026-07-05T01:45:34.971595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8616c9b475e256cdf6ca5a2a2b0aa3acdee8305f48d0a2636cea1981c76bbef1

Aliases

arxiv: 2010.12218 · arxiv_version: 2010.12218v1 · doi: 10.48550/arxiv.2010.12218 · pith_short_12: QYLMTNDV4JLM · pith_short_16: QYLMTNDV4JLM35WK · pith_short_8: QYLMTNDV

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/QYLMTNDV4JLM35WKLIVCWCVDVT \
  | 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: 8616c9b475e256cdf6ca5a2a2b0aa3acdee8305f48d0a2636cea1981c76bbef1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a42113980990319db3d795f2d73e799015b068a36c0cbe805baa34c44bd10616",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2020-10-23T07:56:25Z",
    "title_canon_sha256": "894aba1ba9d43a030e65470b958d5f9717ca765a0ad15ecca61f35425f1376ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.12218",
    "kind": "arxiv",
    "version": 1
  }
}