Pith Number

pith:KJ4SATZD

pith:2019:KJ4SATZDXKRNJGOLVBVUZ2YTDC

not attested not anchored not stored refs pending

Type-Level Computations for Ruby Libraries

David Van Horn, Jeffrey S. Foster, Milod Kazerounian, Niki Vazou, Sankha Narayan Guria

arxiv:1904.03521 v1 · 2019-04-06 · 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{KJ4SATZDXKRNJGOLVBVUZ2YTDC}

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	2026-05-17T23:49:13.104132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5279204f23baa2d499cba86b4ceb1318afc73bc1f064f71f46b64d9e5fc95c47

Aliases

arxiv: 1904.03521 · arxiv_version: 1904.03521v1 · doi: 10.48550/arxiv.1904.03521 · pith_short_12: KJ4SATZDXKRN · pith_short_16: KJ4SATZDXKRNJGOL · pith_short_8: KJ4SATZD

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/KJ4SATZDXKRNJGOLVBVUZ2YTDC \
  | 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: 5279204f23baa2d499cba86b4ceb1318afc73bc1f064f71f46b64d9e5fc95c47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4db6250824ff38a9ff3cba4ef37deb32345a1f0d7ce884d0a84f66b5dd56bd2b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2019-04-06T20:06:07Z",
    "title_canon_sha256": "94cc518abac1632256ac697d41a4d644aa629389238fb67b11654acaddc1ef5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03521",
    "kind": "arxiv",
    "version": 1
  }
}