Pith Number

pith:OICVPNCZ

pith:2020:OICVPNCZ6DQXTJPYIXAMH5AQE2

not attested not anchored not stored refs pending

Urban Scaling of COVID-19 epidemics

Ben-Hur Francisco Cardoso, Sebasti\'an Gon\c{c}alves

arxiv:2005.07791 v1 · 2020-05-15 · q-bio.PE · 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{OICVPNCZ6DQXTJPYIXAMH5AQE2}

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	2026-07-05T01:03:09.812544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

720557b459f0e179a5f845c0c3f410268a280bd57d757119a705de147a91fae5

Aliases

arxiv: 2005.07791 · arxiv_version: 2005.07791v1 · doi: 10.48550/arxiv.2005.07791 · pith_short_12: OICVPNCZ6DQX · pith_short_16: OICVPNCZ6DQXTJPY · pith_short_8: OICVPNCZ

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/OICVPNCZ6DQXTJPYIXAMH5AQE2 \
  | 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: 720557b459f0e179a5f845c0c3f410268a280bd57d757119a705de147a91fae5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac41ec74b05d3a0ed2f00fcbb9408490d1717456ba3b7f6d6f5d5bd4faa9f93b",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2020-05-15T21:26:55Z",
    "title_canon_sha256": "b22e16589da245c161fdceb53d026c8464428cc903d45ebc6c2b0cf2ca21969b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.07791",
    "kind": "arxiv",
    "version": 1
  }
}