Pith Number

pith:UVQBFBQ3

pith:2019:UVQBFBQ36NCKOY6ZI4UL3CG4A5

not attested not anchored not stored refs pending

Subdivision of Maps of Digital Images

Gregory Lupton, John Oprea, Nicholas A. Scoville

arxiv:1906.03170 v1 · 2019-06-07 · math.AT · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UVQBFBQ36NCKOY6ZI4UL3CG4A5}

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	2026-05-17T23:43:54.801828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a56012861bf344a763d94728bd88dc07666c42e0be95d8c80dc9c35d2692e056

Aliases

arxiv: 1906.03170 · arxiv_version: 1906.03170v1 · doi: 10.48550/arxiv.1906.03170 · pith_short_12: UVQBFBQ36NCK · pith_short_16: UVQBFBQ36NCKOY6Z · pith_short_8: UVQBFBQ3

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/UVQBFBQ36NCKOY6ZI4UL3CG4A5 \
  | 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: a56012861bf344a763d94728bd88dc07666c42e0be95d8c80dc9c35d2692e056

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c824167e330c8b802cc83ce268273025275ad25652386357a7a674502bc05f5e",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2019-06-07T15:38:26Z",
    "title_canon_sha256": "80d0312350043f87033160f9a0ffee400e0db1f9a18a8fdc14b91f22d015cae9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.03170",
    "kind": "arxiv",
    "version": 1
  }
}