Pith Number

pith:ZWFD2QJ4

pith:2017:ZWFD2QJ45D54ZFYDDUQLDSNMPZ

not attested not anchored not stored refs pending

Essential dimension of infinitesimal unipotent group schemes

Dajano Tossici

arxiv:1709.00677 v1 · 2017-09-03 · math.AG · 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{ZWFD2QJ45D54ZFYDDUQLDSNMPZ}

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	2026-05-18T00:36:05.429598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd8a3d413ce8fbcc97031d20b1c9ac7e6812e5aa2952ebca51a5b87aa1bf7bfe

Aliases

arxiv: 1709.00677 · arxiv_version: 1709.00677v1 · doi: 10.48550/arxiv.1709.00677 · pith_short_12: ZWFD2QJ45D54 · pith_short_16: ZWFD2QJ45D54ZFYD · pith_short_8: ZWFD2QJ4

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/ZWFD2QJ45D54ZFYDDUQLDSNMPZ \
  | 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: cd8a3d413ce8fbcc97031d20b1c9ac7e6812e5aa2952ebca51a5b87aa1bf7bfe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "690b3b4de118205d38b216147cd8a228d2544ff43b5c1bbb83509bc59fb7e053",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-09-03T07:35:46Z",
    "title_canon_sha256": "057c8f19d9881efb9790ebb923d86696bed7fa3d4cf15d67e768438c1b6e1cf9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.00677",
    "kind": "arxiv",
    "version": 1
  }
}