Pith Number

pith:Z7T3TXUG

pith:2015:Z7T3TXUGIA3VON6JBUY5444WT2

not attested not anchored not stored refs pending

Reversible monadic computing

Chris Heunen, Martti Karvonen

arxiv:1505.04330 v1 · 2015-05-16 · 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{Z7T3TXUGIA3VON6JBUY5444WT2}

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	2026-05-18T01:20:46.359132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfe7b9de8640375737c90d31de73969ea8e8ef040b7967e92966c82f779f58e7

Aliases

arxiv: 1505.04330 · arxiv_version: 1505.04330v1 · doi: 10.48550/arxiv.1505.04330 · pith_short_12: Z7T3TXUGIA3V · pith_short_16: Z7T3TXUGIA3VON6J · pith_short_8: Z7T3TXUG

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/Z7T3TXUGIA3VON6JBUY5444WT2 \
  | 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: cfe7b9de8640375737c90d31de73969ea8e8ef040b7967e92966c82f779f58e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22ffad2b95cd9e643398b634dc8e745c3297214528b1d94944a0a3bb381dfb7f",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-05-16T21:55:54Z",
    "title_canon_sha256": "d3ae26543670d41b118156edcfdce108316544bce6e8e5d7e22a6a4d6d18e84d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04330",
    "kind": "arxiv",
    "version": 1
  }
}