Pith Number

pith:6ZEJQTLR

pith:2020:6ZEJQTLRZB567BPQ236YI7MUHV

not attested not anchored not stored refs pending

Should international borders re-open? The impact of travel restrictions on COVID-19 importation risk

Ahmad El Shoghri, Dean Paini, Jessica Liebig, Kamran Najeebullah, Raja Jurdak

arxiv:2103.14462 v1 · 2020-10-09 · 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{6ZEJQTLRZB567BPQ236YI7MUHV}

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	2026-07-05T02:26:41.212223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f648984d71c87bef85f0d6fd847d943d4b20e4a5f7e45fe684d7b0a8eaf32b60

Aliases

arxiv: 2103.14462 · arxiv_version: 2103.14462v1 · doi: 10.48550/arxiv.2103.14462 · pith_short_12: 6ZEJQTLRZB56 · pith_short_16: 6ZEJQTLRZB567BPQ · pith_short_8: 6ZEJQTLR

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/6ZEJQTLRZB567BPQ236YI7MUHV \
  | 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: f648984d71c87bef85f0d6fd847d943d4b20e4a5f7e45fe684d7b0a8eaf32b60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "949786f986238aa2d2034a0707af75472ab4329d4021991755df7c91d4299b2b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2020-10-09T05:57:53Z",
    "title_canon_sha256": "f7fc2702d2558313e67796e6750155c16def56282053d38b93024ae2307ba100"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.14462",
    "kind": "arxiv",
    "version": 1
  }
}