Pith Number

pith:SNGOZMAA

pith:2018:SNGOZMAAOE3DOSJTYGLTJKOUNX

not attested not anchored not stored refs pending

Local homology of abstract simplicial complexes

Arun Sathanur, Brenda Praggastis, Chris Capraro, Cliff Joslyn, Emilie Purvine, Michael Robinson, Stephen Ranshous

arxiv:1805.11547 v1 · 2018-05-29 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SNGOZMAAOE3DOSJTYGLTJKOUNX}

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	2026-05-18T00:14:42.087483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

934cecb0007136374933c19734a9d46ddd2671cae082a1fdfa891ce0a1204f71

Aliases

arxiv: 1805.11547 · arxiv_version: 1805.11547v1 · doi: 10.48550/arxiv.1805.11547 · pith_short_12: SNGOZMAAOE3D · pith_short_16: SNGOZMAAOE3DOSJT · pith_short_8: SNGOZMAA

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/SNGOZMAAOE3DOSJTYGLTJKOUNX \
  | 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: 934cecb0007136374933c19734a9d46ddd2671cae082a1fdfa891ce0a1204f71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ac226ed90a2d33aa8aa267303cccd6da70b750c772fe907bf1ef14837359a98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-05-29T15:54:09Z",
    "title_canon_sha256": "a0fdc658d38cbbf499dfc7ee6bc69edba512e4e62248470eb49cc4f159afe1c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.11547",
    "kind": "arxiv",
    "version": 1
  }
}