Pith Number

pith:SB4DDXAA

pith:2020:SB4DDXAAPZ5ZRCI4YX4X7RB42O

not attested not anchored not stored refs pending

COVID-19 in South Asia: Real-time monitoring of reproduction and case fatality rate

Fakhar Mustafa, Haseeb ur Rehman, Muhammad Asad Meraj, Rehan Ahmed Khan Sherwani, Rida Ayyaz, Syed Salman Saqlain

arxiv:2008.04347 v1 · 2020-08-10 · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SB4DDXAAPZ5ZRCI4YX4X7RB42O}

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	2026-07-05T01:26:24.310415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

907831dc007e7b98891cc5f97fc43cd399657998d3f45e18a6f02596c57ba603

Aliases

arxiv: 2008.04347 · arxiv_version: 2008.04347v1 · doi: 10.48550/arxiv.2008.04347 · pith_short_12: SB4DDXAAPZ5Z · pith_short_16: SB4DDXAAPZ5ZRCI4 · pith_short_8: SB4DDXAA

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/SB4DDXAAPZ5ZRCI4YX4X7RB42O \
  | 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: 907831dc007e7b98891cc5f97fc43cd399657998d3f45e18a6f02596c57ba603

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b592d328df429014d18e4db388567157f51166cf9b72291410d9500869e91e4c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2020-08-10T18:19:39Z",
    "title_canon_sha256": "96955d4ce5a0ef910071884630bb380052d16bb3059101cbeb28862410e332dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.04347",
    "kind": "arxiv",
    "version": 1
  }
}