Pith Number

pith:4CNP24KV

pith:2014:4CNP24KVXTYTF6OP3N7PCTMFXD

not attested not anchored not stored refs pending

Monads need not be endofunctors

James Chapman (Institute of Cybernetics), Tarmo Uustalu (Institute of Cybernetics), Thosten Altenkirch (University of Nottingham)

arxiv:1412.7148 v2 · 2014-12-22 · cs.PL · cs.LO · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4CNP24KVXTYTF6OP3N7PCTMFXD}

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.

Cited by

1 paper in Pith

The quantum instrument monad

Receipt and verification

First computed	2026-05-18T01:33:24.267221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e09afd7155bcf132f9cfdb7ef14d85b8ed6eabf3db85fca4183516249b8fa389

Aliases

arxiv: 1412.7148 · arxiv_version: 1412.7148v2 · doi: 10.48550/arxiv.1412.7148 · pith_short_12: 4CNP24KVXTYT · pith_short_16: 4CNP24KVXTYTF6OP · pith_short_8: 4CNP24KV

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/4CNP24KVXTYTF6OP3N7PCTMFXD \
  | 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: e09afd7155bcf132f9cfdb7ef14d85b8ed6eabf3db85fca4183516249b8fa389

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95517479e60c0db7b28832808355f37a49c5ef68040c9dc41abf5502d7de4086",
    "cross_cats_sorted": [
      "cs.LO",
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2014-12-22T20:53:17Z",
    "title_canon_sha256": "dae91d75c04df94550e7896158afe576097863b0daec4faba39b18294df3db34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.7148",
    "kind": "arxiv",
    "version": 2
  }
}