Pith Number

pith:NDEFYFYV

pith:2026:NDEFYFYVSFDKQ26YWOGUX3GTKI

not attested not anchored not stored refs pending

Notes on Systems of Very Weak Unary Dyadic Arithmetic

Zlatan Damnjanovic

arxiv:2606.30654 v1 · 2026-06-16 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NDEFYFYVSFDKQ26YWOGUX3GTKI}

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	2026-07-01T00:17:12.709712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68c85c17159146a86bd8b38d4becd3521169c8aeaf11feecc37f636cbf6f5d09

Aliases

arxiv: 2606.30654 · arxiv_version: 2606.30654v1 · doi: 10.48550/arxiv.2606.30654 · pith_short_12: NDEFYFYVSFDK · pith_short_16: NDEFYFYVSFDKQ26Y · pith_short_8: NDEFYFYV

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/NDEFYFYVSFDKQ26YWOGUX3GTKI \
  | 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: 68c85c17159146a86bd8b38d4becd3521169c8aeaf11feecc37f636cbf6f5d09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1979473a5006c92014bf7dea56b95d6753a017d898f9511279897c7d8a87e02b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2026-06-16T04:07:15Z",
    "title_canon_sha256": "56d94e991b8ee29baea40198ae735a5d360fe68ff1633cbf15ae9ffdb3a012b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.30654",
    "kind": "arxiv",
    "version": 1
  }
}