Pith Number

pith:ZGAYUTH2

pith:2019:ZGAYUTH23YQARXS2K4QZOJ46RN

not attested not anchored not stored refs pending

Is Sized Typing for Coq Practical?

Jonathan Chan, William J. Bowman, Yufeng Li

arxiv:1912.05601 v4 · 2019-12-11 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZGAYUTH23YQARXS2K4QZOJ46RN}

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	2026-07-05T05:35:40.270406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9818a4cfade2008de5a572197279e8b6fb45e2e0940bb3de761042557143e12

Aliases

arxiv: 1912.05601 · arxiv_version: 1912.05601v4 · doi: 10.48550/arxiv.1912.05601 · pith_short_12: ZGAYUTH23YQA · pith_short_16: ZGAYUTH23YQARXS2 · pith_short_8: ZGAYUTH2

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/ZGAYUTH23YQARXS2K4QZOJ46RN \
  | 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: c9818a4cfade2008de5a572197279e8b6fb45e2e0940bb3de761042557143e12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e3aa6363a015f505708803e18dff3427d44e76ad8c2d75fe41d2b0245308e5e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2019-12-11T20:18:21Z",
    "title_canon_sha256": "8113b2efe9b85a5b0cd786b7575c4ff74ca7c28b816082e9cfcd13dbaa76f81d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.05601",
    "kind": "arxiv",
    "version": 4
  }
}