Pith Number

pith:TRA7GLLZ

pith:2020:TRA7GLLZYTCWI35ADDIJXVDQY3

not attested not anchored not stored refs pending

Short-Term Covid-19 Forecast for Latecomers

Alexandre Street, Davi Vallad\~ao, Eduardo Zilberman, Gabriel Vasconcelos, Marcelo Medeiros

arxiv:2004.07977 v3 · 2020-04-16 · stat.AP · econ.EM · 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{TRA7GLLZYTCWI35ADDIJXVDQY3}

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	2026-07-05T03:18:23.964417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c41f32d79c4c5646fa018d09bd470c6ea853b4caf35b49d2512dd65f48bedda

Aliases

arxiv: 2004.07977 · arxiv_version: 2004.07977v3 · doi: 10.48550/arxiv.2004.07977 · pith_short_12: TRA7GLLZYTCW · pith_short_16: TRA7GLLZYTCWI35A · pith_short_8: TRA7GLLZ

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/TRA7GLLZYTCWI35ADDIJXVDQY3 \
  | 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: 9c41f32d79c4c5646fa018d09bd470c6ea853b4caf35b49d2512dd65f48bedda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d57de3e5c8c3e6d81c1d48def8acbe837f85eb610823fe0da1947d8109127b18",
    "cross_cats_sorted": [
      "econ.EM",
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2020-04-16T22:09:14Z",
    "title_canon_sha256": "13623693e8a50f632e0c0a0eab6696f1f0483f28f4233036cc0c9d0a835433dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.07977",
    "kind": "arxiv",
    "version": 3
  }
}