Pith Number

pith:VUQJHBOD

pith:2025:VUQJHBODRUDR4MWJAD3IRFKQKS

not attested not anchored not stored refs pending

A short note on Du Bois singularities

Pat Lank

arxiv:2504.19907 v6 · 2025-04-28 · 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{VUQJHBODRUDR4MWJAD3IRFKQKS}

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

Classification and nonexistence for $t$-structures on derived categories of schemes

Receipt and verification

First computed	2026-06-03T00:05:03.132389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad209385c38d071e32c900f6889550548aba40fb1166f76dd0513248d5e0d541

Aliases

arxiv: 2504.19907 · arxiv_version: 2504.19907v6 · doi: 10.48550/arxiv.2504.19907 · pith_short_12: VUQJHBODRUDR · pith_short_16: VUQJHBODRUDR4MWJ · pith_short_8: VUQJHBOD

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/VUQJHBODRUDR4MWJAD3IRFKQKS \
  | 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: ad209385c38d071e32c900f6889550548aba40fb1166f76dd0513248d5e0d541

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b77efb121b8a18bbd5d70194d718c8b00a2b411aa4213b48a1c45ab55098c0c",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2025-04-28T15:40:09Z",
    "title_canon_sha256": "e47e9207b21ac66977aeb7a9c25ceaf886ad7b8150488abdbad263de50329dff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.19907",
    "kind": "arxiv",
    "version": 6
  }
}