Pith Number

pith:6Z2OYACJ

pith:2013:6Z2OYACJVERNRISU3UMHVKHRSD

not attested not anchored not stored refs pending

On Arnold's notion of versal deformations and stratification of moduli spaces given by group actions

Alice Fialowski, Michael Penkava

arxiv:1309.5899 v1 · 2013-09-23 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6Z2OYACJVERNRISU3UMHVKHRSD}

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	2026-05-18T03:12:33.788923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f674ec0049a922d8a254dd187aa8f190e722ede10ccb42e7ba166ddaed07846b

Aliases

arxiv: 1309.5899 · arxiv_version: 1309.5899v1 · doi: 10.48550/arxiv.1309.5899 · pith_short_12: 6Z2OYACJVERN · pith_short_16: 6Z2OYACJVERNRISU · pith_short_8: 6Z2OYACJ

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/6Z2OYACJVERNRISU3UMHVKHRSD \
  | 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: f674ec0049a922d8a254dd187aa8f190e722ede10ccb42e7ba166ddaed07846b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a72d67f0e9bceac29ad448c9ac507bba2df1ce9592963bb56524daddd38994e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2013-09-23T18:01:26Z",
    "title_canon_sha256": "440f604ceddd93fb19256362eae72c78a8eba5ee75288567416c0eb734df9fb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.5899",
    "kind": "arxiv",
    "version": 1
  }
}