Pith Number

pith:5C5CYAEK

pith:2003:5C5CYAEKC3V57NC6JCWAPOV6NN

not attested not anchored not stored refs pending

The theorem of Kerekjarto on periodic homeomorphisms of the disc and the sphere

Adrian Constantin, Boris Kolev

arxiv:math/0303256 v1 · 2003-03-20 · math.GN · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5C5CYAEKC3V57NC6JCWAPOV6NN}

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	2026-05-17T23:57:06.289087Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8ba2c008a16ebdfb45e48ac07babe6b603b4476df2e0a6f06cdae410063af99

Aliases

arxiv: math/0303256 · arxiv_version: math/0303256v1 · doi: 10.48550/arxiv.math/0303256 · pith_short_12: 5C5CYAEKC3V5 · pith_short_16: 5C5CYAEKC3V57NC6 · pith_short_8: 5C5CYAEK

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/5C5CYAEKC3V57NC6JCWAPOV6NN \
  | 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: e8ba2c008a16ebdfb45e48ac07babe6b603b4476df2e0a6f06cdae410063af99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0605581aed5d43638654281c6f6db061d1fb822f3673ae6e1dfa19227ff2e7e1",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "",
    "primary_cat": "math.GN",
    "submitted_at": "2003-03-20T16:50:01Z",
    "title_canon_sha256": "f9f42b60ebc54a46bc3875d3d14d8fc11ef2e52d7879f45c5a9aa0bce1574ec1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0303256",
    "kind": "arxiv",
    "version": 1
  }
}