Pith Number

pith:2JUO2R5B

pith:2018:2JUO2R5BN5E7G3Q34KZQGSR7N4

not attested not anchored not stored refs pending

A general formal memory framework in Coq for verifying the properties of programs based on higher-order logic theorem proving with increased automation, consistency, and reusability

Hang Lei, Zheng Yang

arxiv:1803.00403 v3 · 2018-02-23 · 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{2JUO2R5BN5E7G3Q34KZQGSR7N4}

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	2026-05-18T00:20:01.862863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d268ed47a16f49f36e1be2b3034a3f6f35f95470bb0ed917f860e36e24a2c081

Aliases

arxiv: 1803.00403 · arxiv_version: 1803.00403v3 · doi: 10.48550/arxiv.1803.00403 · pith_short_12: 2JUO2R5BN5E7 · pith_short_16: 2JUO2R5BN5E7G3Q3 · pith_short_8: 2JUO2R5B

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/2JUO2R5BN5E7G3Q34KZQGSR7N4 \
  | 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: d268ed47a16f49f36e1be2b3034a3f6f35f95470bb0ed917f860e36e24a2c081

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2f92e8959913a307b85995396d0c83c9dac501a6f78e6ee1e40029186ba272d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-02-23T02:45:34Z",
    "title_canon_sha256": "cfa49b8b901227d0b9097907c6f0a88432eea217ae0f04ee0f61c7ab5e29ad60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.00403",
    "kind": "arxiv",
    "version": 3
  }
}