Pith Number

pith:KHXBARKT

pith:2013:KHXBARKT6P3W3ITUNPCDNTEPIS

not attested not anchored not stored refs pending

Exterior differential systems via functors of Artin rings

Cesar Massri

arxiv:1308.6234 v2 · 2013-08-28 · 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{KHXBARKT6P3W3ITUNPCDNTEPIS}

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	2026-05-18T03:14:29.083247Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51ee104553f3f76da2746bc436cc8f448402b45bbb16b913e910f2b9d42f93e4

Aliases

arxiv: 1308.6234 · arxiv_version: 1308.6234v2 · doi: 10.48550/arxiv.1308.6234 · pith_short_12: KHXBARKT6P3W · pith_short_16: KHXBARKT6P3W3ITU · pith_short_8: KHXBARKT

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/KHXBARKT6P3W3ITUNPCDNTEPIS \
  | 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: 51ee104553f3f76da2746bc436cc8f448402b45bbb16b913e910f2b9d42f93e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fac9e36aca4f27231144ae5eb860b92c9f5fd22466c774704cecb2dfb1bb2b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-08-28T17:54:10Z",
    "title_canon_sha256": "5dc255f9379a7edc82cff51881635c4fdb1b3300306a523f225efcc8943f98ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.6234",
    "kind": "arxiv",
    "version": 2
  }
}