Pith Number

pith:EWAGH2O4

pith:2019:EWAGH2O4SO6GQ4ZWAHNIMNVNQZ

not attested not anchored not stored refs pending

The \'etale local structure of algebraic stacks

David Rydh, Jack Hall, Jarod Alper

arxiv:1912.06162 v4 · 2019-12-12 · 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{EWAGH2O4SO6GQ4ZWAHNIMNVNQZ}

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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

6 papers in Pith

On the action of the center in the $\ell$-adic categorical Langlands program

Semiorthogonal decompositions for stacks

(Quasi-)affineness of perverse character varieties

On singular Hilbert schemes of points: Local structures and tautological sheaves

A criterion for smooth weighted blow-downs

Receipt and verification

First computed	2026-07-05T10:44:10.280250Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

258063e9dc93bc68733601da8636ad866951eb8ad49e824e150dc8ebd4b6a771

Aliases

arxiv: 1912.06162 · arxiv_version: 1912.06162v4 · doi: 10.48550/arxiv.1912.06162 · pith_short_12: EWAGH2O4SO6G · pith_short_16: EWAGH2O4SO6GQ4ZW · pith_short_8: EWAGH2O4

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/EWAGH2O4SO6GQ4ZWAHNIMNVNQZ \
  | 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: 258063e9dc93bc68733601da8636ad866951eb8ad49e824e150dc8ebd4b6a771

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3489aa3939ee81b16585fa28402d8286194942e02c7526cc8bdd39f2870dce4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-12-12T19:11:53Z",
    "title_canon_sha256": "c2350631f38dca12681d7b769fc3a65631a7062c9eaca5fa00c820927ed0f1e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.06162",
    "kind": "arxiv",
    "version": 4
  }
}