Pith Number

pith:MFFD6R7F

pith:2018:MFFD6R7FTGBU5L5RTVSFBL3FA7

not attested not anchored not stored refs pending

Polygons of Finite Mutation Type

Thomas Prince

arxiv:1810.12673 v1 · 2018-10-30 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MFFD6R7FTGBU5L5RTVSFBL3FA7}

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	2026-05-18T00:01:56.283543Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

614a3f47e599834eafb19d6450af6507e1d8914c1686bd6467c19c9c07a88bae

Aliases

arxiv: 1810.12673 · arxiv_version: 1810.12673v1 · doi: 10.48550/arxiv.1810.12673 · pith_short_12: MFFD6R7FTGBU · pith_short_16: MFFD6R7FTGBU5L5R · pith_short_8: MFFD6R7F

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/MFFD6R7FTGBU5L5RTVSFBL3FA7 \
  | 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: 614a3f47e599834eafb19d6450af6507e1d8914c1686bd6467c19c9c07a88bae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a522e2525d125046873ce12d64b16bf98678131be5fe671ddeac08c718d8c0a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-10-30T11:34:33Z",
    "title_canon_sha256": "f4f61bb472ea6fc22040758ff7b932a35e8e6773df4cd6d17ca82b4f40b78767"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12673",
    "kind": "arxiv",
    "version": 1
  }
}