Pith Number

pith:VGV55P52

pith:2017:VGV55P527TVJZNZSLSAJ5VPMRE

not attested not anchored not stored refs pending

Quasi-Eheresmann-Dedecker Universes

Decio Krause

arxiv:1708.05839 v1 · 2017-08-19 · 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{VGV55P527TVJZNZSLSAJ5VPMRE}

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	2026-05-18T00:37:44.072669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9abdebfbafcea9cb7325c809ed5ec8921b20ffb184ede123c02b4eecda54dc4

Aliases

arxiv: 1708.05839 · arxiv_version: 1708.05839v1 · doi: 10.48550/arxiv.1708.05839 · pith_short_12: VGV55P527TVJ · pith_short_16: VGV55P527TVJZNZS · pith_short_8: VGV55P52

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/VGV55P527TVJZNZSLSAJ5VPMRE \
  | 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: a9abdebfbafcea9cb7325c809ed5ec8921b20ffb184ede123c02b4eecda54dc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcc82b7d29ec023261cb4ee80809591f7cb292297a77d7cae86b5b2fb9edb0d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-08-19T13:02:44Z",
    "title_canon_sha256": "b78cfd3e51bc5c0e9725f05bcc78edfe5214e8d213d9ebf6a3f80d4df660bce9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.05839",
    "kind": "arxiv",
    "version": 1
  }
}