Pith Number

pith:LF63I5ZP

pith:2018:LF63I5ZPGRLA6GCDP3AXQBYEJM

not attested not anchored not stored refs pending

A naive diagram-chasing approach to formalisation of tame topology

Konstantin Pimenov, Misha Gavrilovich

arxiv:1807.06986 v1 · 2018-07-18 · math.CT · 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{LF63I5ZPGRLA6GCDP3AXQBYEJM}

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	2026-05-18T00:10:25.162349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

597db4772f34560f18437ec17807044b1e02d55c8368c781d038d21bb6324218

Aliases

arxiv: 1807.06986 · arxiv_version: 1807.06986v1 · doi: 10.48550/arxiv.1807.06986 · pith_short_12: LF63I5ZPGRLA · pith_short_16: LF63I5ZPGRLA6GCD · pith_short_8: LF63I5ZP

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/LF63I5ZPGRLA6GCDP3AXQBYEJM \
  | 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: 597db4772f34560f18437ec17807044b1e02d55c8368c781d038d21bb6324218

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f0f77f5ddae3c23a0f25475f2fa7423a50655bf8f2c8f76b846bdbd74d6a8f2",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2018-07-18T15:06:04Z",
    "title_canon_sha256": "4b34a4316cea04022d2170177991dcc33b8f3e988c7277799c4ab4f79c503b66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.06986",
    "kind": "arxiv",
    "version": 1
  }
}