Pith Number

pith:S25LTGF6

pith:2020:S25LTGF6OGWAGZLUPD735O2SOW

not attested not anchored not stored refs pending

How long does a lockdown need to be?

Giuseppe Gaeta, Mariano Cadoni

arxiv:2004.11633 v1 · 2020-04-24 · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S25LTGF6OGWAGZLUPD735O2SOW}

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	2026-07-05T00:57:56.046827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96bab998be71ac03657478ffbebb5275bca0bf6c2a5fdd0c5d264e7dc593db09

Aliases

arxiv: 2004.11633 · arxiv_version: 2004.11633v1 · doi: 10.48550/arxiv.2004.11633 · pith_short_12: S25LTGF6OGWA · pith_short_16: S25LTGF6OGWAGZLU · pith_short_8: S25LTGF6

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/S25LTGF6OGWAGZLUPD735O2SOW \
  | 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: 96bab998be71ac03657478ffbebb5275bca0bf6c2a5fdd0c5d264e7dc593db09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af6301ecbb2d9040c390d1b88694fc63739e4d87502386361dc1a19d6e6df4a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2020-04-24T10:08:15Z",
    "title_canon_sha256": "5664c24757665e5bc748c4bb182c3215f1c27149d373db6b605818ee31572019"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.11633",
    "kind": "arxiv",
    "version": 1
  }
}