Pith Number

pith:ZDL3SWFV

pith:2021:ZDL3SWFVZQ6XJELBF5BM5ZIQCG

not attested not anchored not stored refs pending

Positive results from UK single gene testing for SARS-COV-2 may be inconclusive, negative or detecting past infections

Martin Neil

arxiv:2102.11612 v3 · 2021-02-23 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZDL3SWFVZQ6XJELBF5BM5ZIQCG}

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	2026-07-05T02:24:13.691666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8d7b958b5cc3d7491612f42cee510119794de0af3dd70f64be0452f65416e9a

Aliases

arxiv: 2102.11612 · arxiv_version: 2102.11612v3 · doi: 10.48550/arxiv.2102.11612 · pith_short_12: ZDL3SWFVZQ6X · pith_short_16: ZDL3SWFVZQ6XJELB · pith_short_8: ZDL3SWFV

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/ZDL3SWFVZQ6XJELBF5BM5ZIQCG \
  | 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: c8d7b958b5cc3d7491612f42cee510119794de0af3dd70f64be0452f65416e9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ff3e25c0bf9ca89446fe31b66a8173c6166798c9e6ef236c21a18aac421c74b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2021-02-23T10:49:09Z",
    "title_canon_sha256": "d15a9ac1a2e87b225f5a1f0542fa4a34062c3d6fcbfd08be06c9dde9485d0c4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.11612",
    "kind": "arxiv",
    "version": 3
  }
}