Pith Number

pith:TWKWW55M

pith:2017:TWKWW55MP4A4SEBQMNTO4FZPOM

not attested not anchored not stored refs pending

Varieties of Cubical Sets

Edward Morehouse, Ulrik Buchholtz

arxiv:1701.08189 v2 · 2017-01-27 · math.CT · cs.LO · math.AT · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TWKWW55MP4A4SEBQMNTO4FZPOM}

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	2026-05-18T00:46:07.637044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d956b77ac7f01c910306366ee172f73335baacacbcdeff0129a0fe747c7607a

Aliases

arxiv: 1701.08189 · arxiv_version: 1701.08189v2 · doi: 10.48550/arxiv.1701.08189 · pith_short_12: TWKWW55MP4A4 · pith_short_16: TWKWW55MP4A4SEBQ · pith_short_8: TWKWW55M

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/TWKWW55MP4A4SEBQMNTO4FZPOM \
  | 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: 9d956b77ac7f01c910306366ee172f73335baacacbcdeff0129a0fe747c7607a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecc902d303e1e99e8417e634105ce099d1448b25bf20dc923d81d5018549a94d",
    "cross_cats_sorted": [
      "cs.LO",
      "math.AT",
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2017-01-27T20:50:56Z",
    "title_canon_sha256": "936a7e39f682acb819d5ebea8e66351bb37ee681d7643816f6c96c7549a9af09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.08189",
    "kind": "arxiv",
    "version": 2
  }
}