Pith Number

pith:IF7OCWWY

pith:2019:IF7OCWWYO6FPVSK4IU5LYEX5XU

not attested not anchored not stored refs pending

Towers and clubs

Pierre Matet

arxiv:1908.05336 v1 · 2019-08-14 · 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{IF7OCWWYO6FPVSK4IU5LYEX5XU}

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	2026-07-04T23:56:50.492363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

417ee15ad8778afac95c453abc12fdbd114d06884fcc393676e47101ea8003fe

Aliases

arxiv: 1908.05336 · arxiv_version: 1908.05336v1 · doi: 10.48550/arxiv.1908.05336 · pith_short_12: IF7OCWWYO6FP · pith_short_16: IF7OCWWYO6FPVSK4 · pith_short_8: IF7OCWWY

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/IF7OCWWYO6FPVSK4IU5LYEX5XU \
  | 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: 417ee15ad8778afac95c453abc12fdbd114d06884fcc393676e47101ea8003fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca1621741f241f883d20bb2378362feb3c7019bf92a4fefee3a949215ff21be4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2019-08-14T20:24:49Z",
    "title_canon_sha256": "8e9a2fb042f6a86625a61f38ee9cc8bc6d64d920d380185fbe1ffe5525feb080"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05336",
    "kind": "arxiv",
    "version": 1
  }
}