Pith Number

pith:MQ4U2CK5

pith:2020:MQ4U2CK52EXJQ77JB7MPSAMIFV

not attested not anchored not stored refs pending

On the maximum number of minimal codewords

Romar dela Cruz, Sascha Kurz

arxiv:2010.10762 v1 · 2020-10-21 · cs.IT · math.CO · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MQ4U2CK52EXJQ77JB7MPSAMIFV}

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	2026-07-05T01:44:54.305770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64394d095dd12e987fe90fd8f901882d4ae32935772c844303642dd7501cdbe8

Aliases

arxiv: 2010.10762 · arxiv_version: 2010.10762v1 · doi: 10.48550/arxiv.2010.10762 · pith_short_12: MQ4U2CK52EXJ · pith_short_16: MQ4U2CK52EXJQ77J · pith_short_8: MQ4U2CK5

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/MQ4U2CK52EXJQ77JB7MPSAMIFV \
  | 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: 64394d095dd12e987fe90fd8f901882d4ae32935772c844303642dd7501cdbe8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bff9155e9a6a4b1ae5ba884f46a6682584c478a3abf5d78d3a2f558db6e922f",
    "cross_cats_sorted": [
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2020-10-21T04:59:13Z",
    "title_canon_sha256": "82644273322974324bab92e001decf136546db006ba2c9e2389dfde9ddee30e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.10762",
    "kind": "arxiv",
    "version": 1
  }
}