Pith Number

pith:R2H3KXNK

pith:2013:R2H3KXNKOIQTDKJMBQL676MTCZ

not attested not anchored not stored refs pending

Minimal sets determining the topological centre of the algebra LUC(G)*

Jan Pachl, Matthias Neufang, Stefano Ferri

arxiv:1310.7931 v2 · 2013-10-29 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R2H3KXNKOIQTDKJMBQL676MTCZ}

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	2026-05-18T02:38:37.359968Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e8fb55daa722131a92c0c17eff9931672a1e029ac4d00fa06225570583de23d

Aliases

arxiv: 1310.7931 · arxiv_version: 1310.7931v2 · doi: 10.48550/arxiv.1310.7931 · pith_short_12: R2H3KXNKOIQT · pith_short_16: R2H3KXNKOIQTDKJM · pith_short_8: R2H3KXNK

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/R2H3KXNKOIQTDKJMBQL676MTCZ \
  | 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: 8e8fb55daa722131a92c0c17eff9931672a1e029ac4d00fa06225570583de23d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16d9835f3007cbdfd61a0b9aa620cd84cee339741ac3d50d68b6640b12e7064e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2013-10-29T19:42:25Z",
    "title_canon_sha256": "271e42847119e8f565be4d17ea96e1b12ef0a1309a00deb788c142b2d7174057"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.7931",
    "kind": "arxiv",
    "version": 2
  }
}