Pith Number

pith:LDIO7V7N

pith:2017:LDIO7V7NUBUEFW3KCCZC5MTQZA

not attested not anchored not stored refs pending

Nori fundamental gerbe of essentially finite covers and Galois closure of towers of torsors

F. Tonini, I. Biswas, L. Zhang, M. Antei, M. Emsalem

arxiv:1706.00739 v2 · 2017-06-02 · math.AG · math.AT · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LDIO7V7NUBUEFW3KCCZC5MTQZA}

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	2026-05-18T00:00:22.610300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58d0efd7eda06842db6a10b22eb270c803865409e9155b7d6afc5685e6ffe8cf

Aliases

arxiv: 1706.00739 · arxiv_version: 1706.00739v2 · doi: 10.48550/arxiv.1706.00739 · pith_short_12: LDIO7V7NUBUE · pith_short_16: LDIO7V7NUBUEFW3K · pith_short_8: LDIO7V7N

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/LDIO7V7NUBUEFW3KCCZC5MTQZA \
  | 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: 58d0efd7eda06842db6a10b22eb270c803865409e9155b7d6afc5685e6ffe8cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a348ad52b85b0cf0cdd404491ac22a1cd1ef0ab8ea5a9449b0e4bacccbd27fc",
    "cross_cats_sorted": [
      "math.AT",
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-06-02T16:12:12Z",
    "title_canon_sha256": "68fb10eb2adaaaac28593b24ef821d699e345be251640ad18f1ff4c138e35a60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.00739",
    "kind": "arxiv",
    "version": 2
  }
}