Pith Number

pith:NGOKZV7R

pith:2014:NGOKZV7RKRW756O237FBBFUIWD

not attested not anchored not stored refs pending

Groups of PL homeomorphisms of cubes

Dale Rolfsen, Danny Calegari

arxiv:1401.0570 v1 · 2014-01-03 · math.GR · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NGOKZV7RKRW756O237FBBFUIWD}

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	2026-05-18T03:03:22.433056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

699cacd7f1546dfef9dadfca109688b0cbdd6f6e46f9076c73e51ee9efb92212

Aliases

arxiv: 1401.0570 · arxiv_version: 1401.0570v1 · doi: 10.48550/arxiv.1401.0570 · pith_short_12: NGOKZV7RKRW7 · pith_short_16: NGOKZV7RKRW756O2 · pith_short_8: NGOKZV7R

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/NGOKZV7RKRW756O237FBBFUIWD \
  | 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: 699cacd7f1546dfef9dadfca109688b0cbdd6f6e46f9076c73e51ee9efb92212

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc1d0524d729f6c00c87536823109d57baf6e8732b0a4e6bd12a05109a079488",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2014-01-03T01:00:51Z",
    "title_canon_sha256": "327a831b21e430cd532e7fb2934f4caa5b7dfe1b667b02fbb48fbdd5386c5cad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0570",
    "kind": "arxiv",
    "version": 1
  }
}