Pith Number

pith:3ETC3VCN

pith:2017:3ETC3VCNNBRI3L64ZHIFCQ7H7Y

not attested not anchored not stored refs pending

Higher-Order Program Verification via HFL Model Checking

Keiichi Watanabe, Naoki Kobayashi, Takeshi Tsukada

arxiv:1710.08614 v2 · 2017-10-24 · 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{3ETC3VCNNBRI3L64ZHIFCQ7H7Y}

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	2026-05-18T00:22:20.617550Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9262dd44d68628dafdcc9d05143e7fe2d7ec522bcd140e2281a2575c05946cc

Aliases

arxiv: 1710.08614 · arxiv_version: 1710.08614v2 · doi: 10.48550/arxiv.1710.08614 · pith_short_12: 3ETC3VCNNBRI · pith_short_16: 3ETC3VCNNBRI3L64 · pith_short_8: 3ETC3VCN

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/3ETC3VCNNBRI3L64ZHIFCQ7H7Y \
  | 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: d9262dd44d68628dafdcc9d05143e7fe2d7ec522bcd140e2281a2575c05946cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9498bdf13ef03982b68e79e0e1f11c8845831b5221056702e4d0936ee20d1a66",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2017-10-24T06:25:05Z",
    "title_canon_sha256": "66a6f549c571f50a43d75127b5541c52395b78ca6fd2019551de27f911460163"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.08614",
    "kind": "arxiv",
    "version": 2
  }
}