Pith Number

pith:ZADXPZIY

pith:2020:ZADXPZIYXC5KCCMFWMVWPRY6AO

not attested not anchored not stored refs pending

COVID-19: Analytics Of Contagion On Inhomogeneous Random Social Networks

T. R. Hurd

arxiv:2004.02779 v2 · 2020-04-06 · q-bio.PE · cs.SI · physics.soc-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{ZADXPZIYXC5KCCMFWMVWPRY6AO}

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	2026-07-05T01:37:08.300627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c80777e518b8baa10985b32b67c71e03b3a111ac26d6086aaa40e26067cd000b

Aliases

arxiv: 2004.02779 · arxiv_version: 2004.02779v2 · doi: 10.48550/arxiv.2004.02779 · pith_short_12: ZADXPZIYXC5K · pith_short_16: ZADXPZIYXC5KCCMF · pith_short_8: ZADXPZIY

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/ZADXPZIYXC5KCCMFWMVWPRY6AO \
  | 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: c80777e518b8baa10985b32b67c71e03b3a111ac26d6086aaa40e26067cd000b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f2fabea3d74923289714fff9287c34acb9f3f9c67b248af1abe010803ba6c87",
    "cross_cats_sorted": [
      "cs.SI",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2020-04-06T16:12:56Z",
    "title_canon_sha256": "37b85b58019c10da1c421f3bcde4c868acbce285478e489733e33cf08acf2047"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.02779",
    "kind": "arxiv",
    "version": 2
  }
}