Pith Number

pith:CRBNKEAH

pith:2026:CRBNKEAHSP3MF4BRUGK2I6MBDY

not attested not anchored not stored refs pending

On the number of finite additive 2-bases

Konrad Zyhalko, Stefan Weltge

arxiv:2605.19449 v1 · 2026-05-19 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CRBNKEAHSP3MF4BRUGK2I6MBDY}

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	2026-05-20T01:05:46.419678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1442d5100793f6c2f031a195a479811e1aef35b85ca1cca8e2e385f467dc5fdc

Aliases

arxiv: 2605.19449 · arxiv_version: 2605.19449v1 · doi: 10.48550/arxiv.2605.19449 · pith_short_12: CRBNKEAHSP3M · pith_short_16: CRBNKEAHSP3MF4BR · pith_short_8: CRBNKEAH

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/CRBNKEAHSP3MF4BRUGK2I6MBDY \
  | 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: 1442d5100793f6c2f031a195a479811e1aef35b85ca1cca8e2e385f467dc5fdc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc10d4a8ce454fb59d2615cdae780fd14be0a8617a2272d5cac637c0d2f3f9b2",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-05-19T07:04:04Z",
    "title_canon_sha256": "cf5b2a868906e1637a4c5baca07e9b3ed9625c5914bbdd72ba417c248a7f43b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19449",
    "kind": "arxiv",
    "version": 1
  }
}