Pith Number

pith:SPVHO7WE

pith:2016:SPVHO7WEPV7T4SHHHIQIKZUIAQ

not attested not anchored not stored refs pending

Local cohomology of Du Bois singularities and applications to families

Karl Schwede, Kazuma Shimomoto, Linquan Ma

arxiv:1605.02755 v3 · 2016-05-09 · 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{SPVHO7WEPV7T4SHHHIQIKZUIAQ}

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	2026-05-17T23:53:13.189154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93ea777ec47d7f3e48e73a20856688041cca6f9316ee8c9e08c0bd11fc95a5ab

Aliases

arxiv: 1605.02755 · arxiv_version: 1605.02755v3 · doi: 10.48550/arxiv.1605.02755 · pith_short_12: SPVHO7WEPV7T · pith_short_16: SPVHO7WEPV7T4SHH · pith_short_8: SPVHO7WE

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/SPVHO7WEPV7T4SHHHIQIKZUIAQ \
  | 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: 93ea777ec47d7f3e48e73a20856688041cca6f9316ee8c9e08c0bd11fc95a5ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50de7d54934b8f91441dc6cedf56724c3fa776c4b193932c5cc70e65eda619a4",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-05-09T20:13:10Z",
    "title_canon_sha256": "90a6660d4c4cbe7edb18eaf49bd46c84d655d152b8da1055271af650f89ebbdf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.02755",
    "kind": "arxiv",
    "version": 3
  }
}