Pith Number

pith:EP745UVV

pith:2001:EP745UVVJA67RVXVUOB2574BDT

not attested not anchored not stored refs pending

On periodic homeomorphisms of spheres

E.V. Shchepin, L. Montejano

arxiv:math/0110061 v1 · 2001-10-05 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EP745UVVJA67RVXVUOB2574BDT}

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	2026-05-18T02:41:33.217996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23ffced2b5483df8d6f5a383aeff811cfa4be30f754dcbb13cc40d288fb1c393

Aliases

arxiv: math/0110061 · arxiv_version: math/0110061v1 · doi: 10.48550/arxiv.math/0110061 · pith_short_12: EP745UVVJA67 · pith_short_16: EP745UVVJA67RVXV · pith_short_8: EP745UVV

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/EP745UVVJA67RVXVUOB2574BDT \
  | 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: 23ffced2b5483df8d6f5a383aeff811cfa4be30f754dcbb13cc40d288fb1c393

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "985aa678e5ab7602e99d1fd47d9f59bd05ae9f5a3eedb20e34be25ee206e2dff",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2001-10-05T10:54:59Z",
    "title_canon_sha256": "1636b41b6515f5572f6bed699bd8307079b0f1246ca3c1049a81b6542ada4bf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0110061",
    "kind": "arxiv",
    "version": 1
  }
}