Pith Number

pith:LN6DON2O

pith:2020:LN6DON2OJ6B3C6Z2DAWZVNILBW

not attested not anchored not stored refs pending

Estimating the infection horizon of COVID-19 in eight countries with a data-driven approach

G. D. Barmparis, G. P. Tsironis

arxiv:2003.14334 v4 · 2020-03-31 · q-bio.PE · physics.bio-ph · 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{LN6DON2OJ6B3C6Z2DAWZVNILBW}

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	2026-07-05T00:58:09.199581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b7c37374e4f83b17b3a182d9ab50b0dbdfe155e8516627242dabb0edd7eb053

Aliases

arxiv: 2003.14334 · arxiv_version: 2003.14334v4 · doi: 10.48550/arxiv.2003.14334 · pith_short_12: LN6DON2OJ6B3 · pith_short_16: LN6DON2OJ6B3C6Z2 · pith_short_8: LN6DON2O

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/LN6DON2OJ6B3C6Z2DAWZVNILBW \
  | 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: 5b7c37374e4f83b17b3a182d9ab50b0dbdfe155e8516627242dabb0edd7eb053

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42af481a6600f297a82a2c81fd63bee6a7ef5aa47b4dce4ddffe9fe13e3673e7",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2020-03-31T16:18:23Z",
    "title_canon_sha256": "904d9dd8b9732b7ac63e4727ce594c5a4a20abb469ef8e34e861c14155409c3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.14334",
    "kind": "arxiv",
    "version": 4
  }
}