Pith Number

pith:67XJSUZB

pith:2020:67XJSUZBQF3UGKMY4PXK76BQ6B

not attested not anchored not stored refs pending

Predictive and retrospective modelling of airborne infection risk using monitored carbon dioxide

Catherine J. Noakes, Henry C. Burridge, P. F. Linden, Roderic L. Jones, Shiwei Fan

arxiv:2009.02999 v2 · 2020-09-07 · physics.soc-ph · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{67XJSUZBQF3UGKMY4PXK76BQ6B}

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	2026-07-05T02:17:08.930443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7ee9953218177432998e3eeaff830f0625565e3b94637d1b370899559bd6b0a

Aliases

arxiv: 2009.02999 · arxiv_version: 2009.02999v2 · doi: 10.48550/arxiv.2009.02999 · pith_short_12: 67XJSUZBQF3U · pith_short_16: 67XJSUZBQF3UGKMY · pith_short_8: 67XJSUZB

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/67XJSUZBQF3UGKMY4PXK76BQ6B \
  | 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: f7ee9953218177432998e3eeaff830f0625565e3b94637d1b370899559bd6b0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7674b6028c0df7bea3b524d0be04bf785dd482c96074bfaf9846906760e9f7a",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2020-09-07T10:31:52Z",
    "title_canon_sha256": "0ca3a983241bbde935aa4ef360651dee597dd76ddb8cbd6166813d013db863b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.02999",
    "kind": "arxiv",
    "version": 2
  }
}