Pith Number

pith:YCL7JBVW

pith:2021:YCL7JBVWMAALJVJTZHNME5564F

not attested not anchored not stored refs pending

Strategic COVID-19 vaccine distribution can simultaneously elevate social utility and equity

Fengli Xu, James Evans, Kun Tang, Lin Chen, Pan Hui, Yong Li, Zhenyu Han

arxiv:2111.06689 v1 · 2021-11-12 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YCL7JBVWMAALJVJTZHNME5564F}

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	2026-07-05T03:31:16.659808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c097f486b66000b4d533c9dac277bee160ed54441239d91e05b2d216a3f76b3b

Aliases

arxiv: 2111.06689 · arxiv_version: 2111.06689v1 · doi: 10.48550/arxiv.2111.06689 · pith_short_12: YCL7JBVWMAAL · pith_short_16: YCL7JBVWMAALJVJT · pith_short_8: YCL7JBVW

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/YCL7JBVWMAALJVJTZHNME5564F \
  | 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: c097f486b66000b4d533c9dac277bee160ed54441239d91e05b2d216a3f76b3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ea291efc89f7c3cb3be398739c8ff7172cf62ac4a8590364b425d15fb459b77",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2021-11-12T12:31:11Z",
    "title_canon_sha256": "659f176c9e7409c90bc5c2b6ef40a67a293ce0f8756e96917d277357cf25f2f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.06689",
    "kind": "arxiv",
    "version": 1
  }
}