Pith Number

pith:FACTDSOG

pith:2023:FACTDSOGDILWU24AIU5LK2O4GR

not attested not anchored not stored refs pending

Presentations of mapping class groups and an application to cluster algebras from surfaces

Fang Li, Jinlei Dong

arxiv:2307.15227 v1 · 2023-07-27 · math.GT · math.AT · math.RA · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FACTDSOGDILWU24AIU5LK2O4GR}

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	2026-07-05T06:35:32.195237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

280531c9c61a176a6b80453ab569dc347e420308635cc7204e8f10d5d5e062d3

Aliases

arxiv: 2307.15227 · arxiv_version: 2307.15227v1 · doi: 10.48550/arxiv.2307.15227 · pith_short_12: FACTDSOGDILW · pith_short_16: FACTDSOGDILWU24A · pith_short_8: FACTDSOG

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/FACTDSOGDILWU24AIU5LK2O4GR \
  | 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: 280531c9c61a176a6b80453ab569dc347e420308635cc7204e8f10d5d5e062d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d958db917e3872b58b9f9459c2cf103ee5677517f3a8a295c6bcd5a6de157b70",
    "cross_cats_sorted": [
      "math.AT",
      "math.RA",
      "math.RT"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2023-07-27T23:07:17Z",
    "title_canon_sha256": "c9fe4f9ac1670230995f85d47684c8e4a28eb01e7f268ffd3a1dbf2374a47d2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.15227",
    "kind": "arxiv",
    "version": 1
  }
}