Pith Number

pith:BVLCK2DI

pith:2016:BVLCK2DIUSAA6KMXXBOOLOLTWV

not attested not anchored not stored refs pending

Approximating certain cell-like maps by homeomorphisms

Robert D. Edwards

arxiv:1607.08270 v1 · 2016-07-27 · 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{BVLCK2DIUSAA6KMXXBOOLOLTWV}

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	2026-05-18T01:10:19.533005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d56256868a4800f2997b85ce5b973b56f33e352acde443ede29b26a474f0daa

Aliases

arxiv: 1607.08270 · arxiv_version: 1607.08270v1 · doi: 10.48550/arxiv.1607.08270 · pith_short_12: BVLCK2DIUSAA · pith_short_16: BVLCK2DIUSAA6KMX · pith_short_8: BVLCK2DI

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/BVLCK2DIUSAA6KMXXBOOLOLTWV \
  | 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: 0d56256868a4800f2997b85ce5b973b56f33e352acde443ede29b26a474f0daa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8183f5b11b0ff41be87f1b10e55e663a82ff9de1d6a5e2ba6196bbd36e2ab566",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2016-07-27T21:30:06Z",
    "title_canon_sha256": "e75887e272eb07b890449d1356290d52f0068a940a398183f8fd04595f50e4dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.08270",
    "kind": "arxiv",
    "version": 1
  }
}