Pith Number

pith:AI25IPRX

pith:2020:AI25IPRX4PCLUOMFJUYCAHJ3BU

not attested not anchored not stored refs pending

Low-tech solutions for the COVID19 supply chain crisis

Alexis Scholtz, Andrea M Armani, Darrell E Hurt, Darryl Hwang, Meghan C McCarthy

arxiv:2004.13192 v1 · 2020-04-27 · physics.soc-ph · physics.med-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{AI25IPRX4PCLUOMFJUYCAHJ3BU}

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	2026-07-05T00:58:56.645583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0235d43e37e3c4ba39854d30201d3b0d1ea3d00deb454c85535b48bc59ac2e91

Aliases

arxiv: 2004.13192 · arxiv_version: 2004.13192v1 · doi: 10.48550/arxiv.2004.13192 · pith_short_12: AI25IPRX4PCL · pith_short_16: AI25IPRX4PCLUOMF · pith_short_8: AI25IPRX

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/AI25IPRX4PCLUOMFJUYCAHJ3BU \
  | 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: 0235d43e37e3c4ba39854d30201d3b0d1ea3d00deb454c85535b48bc59ac2e91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffdf62ac8a0950583baa08ba20e8cc38632c3fb40724738d14156b2f51cff76b",
    "cross_cats_sorted": [
      "physics.med-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2020-04-27T21:44:25Z",
    "title_canon_sha256": "fc1e1d8de72061772ae467df407e085b0e44c5a1b154c5d5f61960be4d73aa21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.13192",
    "kind": "arxiv",
    "version": 1
  }
}