Pith Number

pith:QJR2UPEB

pith:2020:QJR2UPEB2I3QQJJOZXCYTY4HJR

not attested not anchored not stored refs pending

Modular Reactivation of Mexico City After COVID-19 Lockdown

Enrique Hern\'andez-Lemus, Guillermo de Anda-J\'auregui

arxiv:2008.12688 v1 · 2020-08-28 · 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{QJR2UPEB2I3QQJJOZXCYTY4HJR}

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	2026-07-05T01:31:17.980939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8263aa3c81d23708252ecdc589e3874c46320881f2a7d99cf8b3bb05078b2919

Aliases

arxiv: 2008.12688 · arxiv_version: 2008.12688v1 · doi: 10.48550/arxiv.2008.12688 · pith_short_12: QJR2UPEB2I3Q · pith_short_16: QJR2UPEB2I3QQJJO · pith_short_8: QJR2UPEB

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/QJR2UPEB2I3QQJJOZXCYTY4HJR \
  | 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: 8263aa3c81d23708252ecdc589e3874c46320881f2a7d99cf8b3bb05078b2919

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6d2301ab46f502a1cbabec70966102767313ba783e7c2d668b275bc5bb74c91",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2020-08-28T14:44:27Z",
    "title_canon_sha256": "d93691e8202d788aca36a5eeeab52f2baf6ce05ef36cd111b1c2cbabad2c03cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.12688",
    "kind": "arxiv",
    "version": 1
  }
}