Pith Number

pith:XEWCXME7

pith:2010:XEWCXME7ISDBLU5HEQBKK5AM4C

not attested not anchored not stored refs pending

Dimension of the boundary in different metrics

Riku Kl\'en, Ville Suomala

arxiv:1005.1808 v3 · 2010-05-11 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XEWCXME7ISDBLU5HEQBKK5AM4C}

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	2026-05-18T03:12:58.281058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b92c2bb09f448615d3a72402a5740ce0ba6a09d5f54b05e347f9f1cf509af776

Aliases

arxiv: 1005.1808 · arxiv_version: 1005.1808v3 · doi: 10.48550/arxiv.1005.1808 · pith_short_12: XEWCXME7ISDB · pith_short_16: XEWCXME7ISDBLU5H · pith_short_8: XEWCXME7

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/XEWCXME7ISDBLU5HEQBKK5AM4C \
  | 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: b92c2bb09f448615d3a72402a5740ce0ba6a09d5f54b05e347f9f1cf509af776

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54389a3cd5affefb256ad2f63518018ea8f05d3e895ff7beb389a112e0cb951e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2010-05-11T11:56:18Z",
    "title_canon_sha256": "f8f03ce5ddd2ee77a798242eeb427db7869baceed43eee4f933b9623592a7b59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.1808",
    "kind": "arxiv",
    "version": 3
  }
}