Pith Number

pith:VKLNOC3E

pith:2017:VKLNOC3EHKUM6BIOWLD6OWUGP6

not attested not anchored not stored refs pending

Local approximation of non-holomorphic discs in almost complex manifolds

Florian Bertrand, Uros Kuzman

arxiv:1704.01781 v2 · 2017-04-06 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VKLNOC3EHKUM6BIOWLD6OWUGP6}

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	2026-05-18T00:36:38.712103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa96d70b643aa8cf050eb2c7e75a867fa1324e2b9b14b39f375b792ac3ecc7e1

Aliases

arxiv: 1704.01781 · arxiv_version: 1704.01781v2 · doi: 10.48550/arxiv.1704.01781 · pith_short_12: VKLNOC3EHKUM · pith_short_16: VKLNOC3EHKUM6BIO · pith_short_8: VKLNOC3E

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/VKLNOC3EHKUM6BIOWLD6OWUGP6 \
  | 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: aa96d70b643aa8cf050eb2c7e75a867fa1324e2b9b14b39f375b792ac3ecc7e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a31486b7c48ae56ee7137a75f4567901809b6dbf06fa0c73929d476cfbd9cbc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2017-04-06T11:03:18Z",
    "title_canon_sha256": "d03c66f71a4b6e53386fa417e1e7cd233cad54380fb75dc3a971e42170e5d649"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.01781",
    "kind": "arxiv",
    "version": 2
  }
}