Pith Number

pith:AJHIAH7I

pith:2018:AJHIAH7IUHKP3CV6BUZ7ILKUGR

not attested not anchored not stored refs pending

Formal Small-step Verification of a Call-by-value Lambda Calculus Machine

Fabian Kunze, Gert Smolka, Yannick Forster

arxiv:1806.03205 v3 · 2018-06-08 · cs.LO · 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{AJHIAH7IUHKP3CV6BUZ7ILKUGR}

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	2026-05-17T23:57:06.159166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

024e801fe8a1d4fd8abe0d33f42d5434620f96fd1b3306decda5c08d574455cf

Aliases

arxiv: 1806.03205 · arxiv_version: 1806.03205v3 · doi: 10.48550/arxiv.1806.03205 · pith_short_12: AJHIAH7IUHKP · pith_short_16: AJHIAH7IUHKP3CV6 · pith_short_8: AJHIAH7I

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/AJHIAH7IUHKP3CV6BUZ7ILKUGR \
  | 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: 024e801fe8a1d4fd8abe0d33f42d5434620f96fd1b3306decda5c08d574455cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12ab5fa1b2757ffd2d4ee5e6794ef3d82ad13fc1aaa2a0cc7afff14f8a30641a",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-06-08T14:59:07Z",
    "title_canon_sha256": "d0b5797b9b2f79e9244846830ec530fa3963dbbf13ad3aee21eae37568328fd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.03205",
    "kind": "arxiv",
    "version": 3
  }
}