Pith Number

pith:5SWJXH62

pith:2011:5SWJXH62JTNQO7HEQ5CDDVHXBC

not attested not anchored not stored refs pending

On the approximate fixed point property in abstract spaces

Cleon S. Barroso, Ond\v{r}ej F.K. Kalenda, Pei-Kee Lin

arxiv:1101.5274 v2 · 2011-01-27 · math.FA · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5SWJXH62JTNQO7HEQ5CDDVHXBC}

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	2026-05-18T03:50:48.828959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecac9b9fda4cdb077ce4874431d4f708b482f267b24f6e4ae58ff22c6cae66fd

Aliases

arxiv: 1101.5274 · arxiv_version: 1101.5274v2 · doi: 10.48550/arxiv.1101.5274 · pith_short_12: 5SWJXH62JTNQ · pith_short_16: 5SWJXH62JTNQO7HE · pith_short_8: 5SWJXH62

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/5SWJXH62JTNQO7HEQ5CDDVHXBC \
  | 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: ecac9b9fda4cdb077ce4874431d4f708b482f267b24f6e4ae58ff22c6cae66fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0c5d791d4eb4e509e3da0691e7a01c866a26c2268832fbe1bc0244955f316f3",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2011-01-27T12:53:12Z",
    "title_canon_sha256": "34b3c92dbd72d3b3f175406d6a6d5f7e9b238f2de8420ce193011e20122299dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.5274",
    "kind": "arxiv",
    "version": 2
  }
}