Pith Number

pith:C77IXW4Y

pith:2020:C77IXW4YI3VJNYYR6HCV3Q22W4

not attested not anchored not stored refs pending

Investigating the dynamics of COVID-19 pandemic in India under lockdown

Ankush Bhaskar, Chintamani Pai, Vaibhav Rawoot

arxiv:2004.13337 v1 · 2020-04-28 · q-bio.PE · 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{C77IXW4YI3VJNYYR6HCV3Q22W4}

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	2026-07-05T01:19:02.991463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17fe8bdb9846ea96e311f1c55dc35ab7352d1a13b186da1f1283e1b69c157929

Aliases

arxiv: 2004.13337 · arxiv_version: 2004.13337v1 · doi: 10.48550/arxiv.2004.13337 · pith_short_12: C77IXW4YI3VJ · pith_short_16: C77IXW4YI3VJNYYR · pith_short_8: C77IXW4Y

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/C77IXW4YI3VJNYYR6HCV3Q22W4 \
  | 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: 17fe8bdb9846ea96e311f1c55dc35ab7352d1a13b186da1f1283e1b69c157929

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b311db03b091390b4f8de0ea0071d51bc42d1ccd75e5261cead0e415a8e8445b",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2020-04-28T07:21:52Z",
    "title_canon_sha256": "18dcc9226ce4e5b403f2caea037065e4a65ceff7094fd53defa64b2587943688"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.13337",
    "kind": "arxiv",
    "version": 1
  }
}