Pith Number

pith:4GRWHO4S

pith:2019:4GRWHO4S36QHVUJE67WDGIMSD5

not attested not anchored not stored refs pending

Surface Groups In The Group Of Germs Of Analyticdiffeomorphisms In One Variable

Dominique Cerveau (IRMAR), Juan Souto (IRMAR), Serge Cantat (IRMAR), Vincent Guirardel (IRMAR)

arxiv:1909.01581 v1 · 2019-09-04 · math.GR · math.CV · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4GRWHO4S36QHVUJE67WDGIMSD5}

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	2026-07-05T00:02:17.700494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1a363bb92dfa07ad124f7ec3321921f448e90e7f21e16ab1b4df679ad0f1437

Aliases

arxiv: 1909.01581 · arxiv_version: 1909.01581v1 · doi: 10.48550/arxiv.1909.01581 · pith_short_12: 4GRWHO4S36QH · pith_short_16: 4GRWHO4S36QHVUJE · pith_short_8: 4GRWHO4S

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/4GRWHO4S36QHVUJE67WDGIMSD5 \
  | 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: e1a363bb92dfa07ad124f7ec3321921f448e90e7f21e16ab1b4df679ad0f1437

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e38e443f4f7a706a4e8990326fc7fdfe4b4a65af3295a3d5143fb11d07f06fd",
    "cross_cats_sorted": [
      "math.CV",
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2019-09-04T07:15:40Z",
    "title_canon_sha256": "5e73aaec9fc46782e05a9340675ba389ffbbf4f90d2d47edc947b080d6e3bdcc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.01581",
    "kind": "arxiv",
    "version": 1
  }
}