Pith Number

pith:JMHF5B3Q

pith:2019:JMHF5B3QE4E23F2JMLR5SCMGEP

not attested not anchored not stored refs pending

Flag complexes and homology

Eran Nevo, Kai Fong Ernest Chong

arxiv:1908.08308 v1 · 2019-08-22 · 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{JMHF5B3QE4E23F2JMLR5SCMGEP}

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	2026-07-04T23:59:11.627187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b0e5e87702709ad974962e3d9098623db4fd2965bef02b5131dc99cd0b8c052

Aliases

arxiv: 1908.08308 · arxiv_version: 1908.08308v1 · doi: 10.48550/arxiv.1908.08308 · pith_short_12: JMHF5B3QE4E2 · pith_short_16: JMHF5B3QE4E23F2J · pith_short_8: JMHF5B3Q

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/JMHF5B3QE4E23F2JMLR5SCMGEP \
  | 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: 4b0e5e87702709ad974962e3d9098623db4fd2965bef02b5131dc99cd0b8c052

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d3b2ac42128e6a7371731c02e9b9d806b9d34028f37810700fea1562bc81300",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-08-22T11:03:46Z",
    "title_canon_sha256": "fa42aa6c1ce6404b033a0cec2c2014122c1f5ebb7675edf9c5b388b962b349b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08308",
    "kind": "arxiv",
    "version": 1
  }
}