Pith Number

pith:JSGOKCMQ

pith:2020:JSGOKCMQD42AYM3S2D5DFGO66Y

not attested not anchored not stored refs pending

COVID-19 Policy Impact Evaluation: A guide to common design issues

Avi Feller, Elizabeth A Stuart, Emma Clarke-Deelder, Joshua A Salomon, Noah A Haber

arxiv:2009.01940 v7 · 2020-09-03 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JSGOKCMQD42AYM3S2D5DFGO66Y}

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	2026-07-05T02:32:45.959245Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c8ce509901f340c3372d0fa3299def6032c1cc3b4e33f284de71e9b42308d4b

Aliases

arxiv: 2009.01940 · arxiv_version: 2009.01940v7 · doi: 10.48550/arxiv.2009.01940 · pith_short_12: JSGOKCMQD42A · pith_short_16: JSGOKCMQD42AYM3S · pith_short_8: JSGOKCMQ

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/JSGOKCMQD42AYM3S2D5DFGO66Y \
  | 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: 4c8ce509901f340c3372d0fa3299def6032c1cc3b4e33f284de71e9b42308d4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65cd6b44c94e2bb56285b2a651d465870dda6a9027256f45819a05d28ab8a0b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2020-09-03T22:08:29Z",
    "title_canon_sha256": "fbcfdbdaa907e1067bd546da11408a12aad3df4916c09b6e0daa551168482ae3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.01940",
    "kind": "arxiv",
    "version": 7
  }
}