Pith Number

pith:53XELSPY

pith:2017:53XELSPY6ZZ7PZW24AOREAGDJO

not attested not anchored not stored refs pending

Higher-order Cons-free Interpreters

Cynthia Kop, Jakob Grue Simonsen

arxiv:1711.03407 v1 · 2017-11-09 · cs.LO · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{53XELSPY6ZZ7PZW24AOREAGDJO}

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	2026-05-18T00:30:56.203648Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eeee45c9f8f673f7e6dae01d1200c34b9b9d48ddfb558d025940f37fbdc9b70f

Aliases

arxiv: 1711.03407 · arxiv_version: 1711.03407v1 · doi: 10.48550/arxiv.1711.03407 · pith_short_12: 53XELSPY6ZZ7 · pith_short_16: 53XELSPY6ZZ7PZW2 · pith_short_8: 53XELSPY

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/53XELSPY6ZZ7PZW24AOREAGDJO \
  | 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: eeee45c9f8f673f7e6dae01d1200c34b9b9d48ddfb558d025940f37fbdc9b70f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3df689a92003a31e1b48ba11c10d4cf652cba61758c5162119e0945c075973b",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-11-09T15:01:55Z",
    "title_canon_sha256": "8220c05ed5c6d2ac87c1ecec738671dc8bb86345f7b91e18a58b6875db87a7a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.03407",
    "kind": "arxiv",
    "version": 1
  }
}