Pith Number

pith:NKNBAVOO

pith:2017:NKNBAVOOY5XCWE6K7WETJQ4NVR

not attested not anchored not stored refs pending

Imperative Functional Programs that Explain their Work

James Cheney, Jan Stolarek, Roly Perera, Wilmer Ricciotti

arxiv:1705.07678 v1 · 2017-05-22 · 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{NKNBAVOOY5XCWE6K7WETJQ4NVR}

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	2026-05-18T00:35:41.254453Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a9a1055cec76e2b13cafd8934c38dac56c67da1fefb6b8d70807d49e35e9d07

Aliases

arxiv: 1705.07678 · arxiv_version: 1705.07678v1 · doi: 10.48550/arxiv.1705.07678 · pith_short_12: NKNBAVOOY5XC · pith_short_16: NKNBAVOOY5XCWE6K · pith_short_8: NKNBAVOO

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/NKNBAVOOY5XCWE6K7WETJQ4NVR \
  | 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: 6a9a1055cec76e2b13cafd8934c38dac56c67da1fefb6b8d70807d49e35e9d07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "102a6e262f73a5bd278d33b2c801b0e921cbdbc84fa7b402553d8218aaabc6d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2017-05-22T11:30:54Z",
    "title_canon_sha256": "5bfc1a1b30624e010e6efec3329ff59a4642efc628bfacdb44532cbfd4cdd05d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.07678",
    "kind": "arxiv",
    "version": 1
  }
}