Pith Number

pith:BA3LIYHO

pith:1998:BA3LIYHOOUIJ4ILNY53MU6NSME

not attested not anchored not stored refs pending

On the Nagata Problem

Ziv Ran

arxiv:math/9809101 v3 · 1998-09-18 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BA3LIYHOOUIJ4ILNY53MU6NSME}

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	2026-05-18T03:26:10.795174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0836b460ee75109e216dc776ca79b261083921e76e31140c5732d24733a17025

Aliases

arxiv: math/9809101 · arxiv_version: math/9809101v3 · doi: 10.48550/arxiv.math/9809101 · pith_short_12: BA3LIYHOOUIJ · pith_short_16: BA3LIYHOOUIJ4ILN · pith_short_8: BA3LIYHO

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/BA3LIYHOOUIJ4ILNY53MU6NSME \
  | 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: 0836b460ee75109e216dc776ca79b261083921e76e31140c5732d24733a17025

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44c8570ab81e56683e7cce57b7e039cac9c90ffafa371ba7cc3879fa85231069",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "1998-09-18T04:12:20Z",
    "title_canon_sha256": "09d63ba219815f61b10e7aefd0fb282ad9864161f16419c105c71fa6d06cffde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9809101",
    "kind": "arxiv",
    "version": 3
  }
}