Pith Number

pith:FRAXOGCA

pith:2022:FRAXOGCA3FRPPK4EBAKHSGOYD4

not attested not anchored not stored refs pending

Pure subrings of Du Bois singularities are Du Bois singularities

Charles Godfrey, Takumi Murayama

arxiv:2208.14429 v5 · 2022-08-30 · math.AG · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FRAXOGCA3FRPPK4EBAKHSGOYD4}

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.

Cited by

1 paper in Pith

Equidimensional morphisms onto splinters are pure

Receipt and verification

First computed	2026-05-20T00:02:01.060172Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c41771840d962f7ab8408147919d81f0b123a8ed65f8fa26ab656accc3a170d

Aliases

arxiv: 2208.14429 · arxiv_version: 2208.14429v5 · doi: 10.48550/arxiv.2208.14429 · pith_short_12: FRAXOGCA3FRP · pith_short_16: FRAXOGCA3FRPPK4E · pith_short_8: FRAXOGCA

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/FRAXOGCA3FRPPK4EBAKHSGOYD4 \
  | 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: 2c41771840d962f7ab8408147919d81f0b123a8ed65f8fa26ab656accc3a170d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6296af20aa49995d6c2be9d53ff86f78d213fadd070021025ddff6589f4b7cb7",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2022-08-30T17:49:03Z",
    "title_canon_sha256": "735ee0e0d29666bb3e88ccd133707ad4e76ad795265ec834ee100adf2ff4e151"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.14429",
    "kind": "arxiv",
    "version": 5
  }
}