Pith Number

pith:XDX4YRQP

pith:2020:XDX4YRQP7QIXOKYIEFKH2FV7YA

not attested not anchored not stored refs pending

Answering Questions on COVID-19 in Real-Time

Jaewoo Kang, Jinhyuk Lee, Minbyul Jeong, Miyoung Ko, Mujeen Sung, Sean S. Yi, WonJin Yoon, Yonghwa Choi

arxiv:2006.15830 v2 · 2020-06-29 · cs.CL · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XDX4YRQP7QIXOKYIEFKH2FV7YA}

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	2026-07-05T01:41:32.404885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8efcc460ffc11772b0821547d16bfc01664a7a0d2aef02aeffd255187dff662

Aliases

arxiv: 2006.15830 · arxiv_version: 2006.15830v2 · doi: 10.48550/arxiv.2006.15830 · pith_short_12: XDX4YRQP7QIX · pith_short_16: XDX4YRQP7QIXOKYI · pith_short_8: XDX4YRQP

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/XDX4YRQP7QIXOKYIEFKH2FV7YA \
  | 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: b8efcc460ffc11772b0821547d16bfc01664a7a0d2aef02aeffd255187dff662

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "986e547419447e4f632bd8afb1dbee45cd058db82d98ad07ada7486da353843f",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-06-29T06:34:35Z",
    "title_canon_sha256": "e7ca35b2a6b905ca8fa5cc7f5814b7852a651d603534584d77a3472517d3d1e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.15830",
    "kind": "arxiv",
    "version": 2
  }
}