Pith Number

pith:U5UPF73M

pith:2018:U5UPF73MRELP65NMM2YFI7QGX5

not attested not anchored not stored refs pending

Enforcing Programming Guidelines with Region Types and Effects

Eugen Zalinescu, Martin Hofmann, Serdar Erbatur

arxiv:1801.07647 v1 · 2018-01-23 · cs.PL · cs.LO · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U5UPF73MRELP65NMM2YFI7QGX5}

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	2026-05-18T00:25:12.361579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a768f2ff6c8916ff75ac66b0547e06bf65333380ac53c570e097d874761855ee

Aliases

arxiv: 1801.07647 · arxiv_version: 1801.07647v1 · doi: 10.48550/arxiv.1801.07647 · pith_short_12: U5UPF73MRELP · pith_short_16: U5UPF73MRELP65NM · pith_short_8: U5UPF73M

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/U5UPF73MRELP65NMM2YFI7QGX5 \
  | 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: a768f2ff6c8916ff75ac66b0547e06bf65333380ac53c570e097d874761855ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7dfabca073fd18bfb5a4d94e44ee01a1eb287e043dd6e840b265e152d5c6d25",
    "cross_cats_sorted": [
      "cs.LO",
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-01-23T16:38:18Z",
    "title_canon_sha256": "1b94b5d8beebf536025e14b5dbb419c78cea0a790971507875b94790fe7cd195"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07647",
    "kind": "arxiv",
    "version": 1
  }
}