Pith Number

pith:2WT4LIHJ

pith:2020:2WT4LIHJHFNSALBB3LIXBKIQJ5

not attested not anchored not stored refs pending

Meromorphic first integrals of analytic diffeomorphisms

Antoni Ferragut, Armengol Gasull, Xiang Zhang

arxiv:2012.02514 v1 · 2020-12-04 · 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{2WT4LIHJHFNSALBB3LIXBKIQJ5}

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	2026-07-05T01:57:07.394223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5a7c5a0e9395b202c21dad170a9104f6b688e84b3eecfd1918234c53e5e4fd9

Aliases

arxiv: 2012.02514 · arxiv_version: 2012.02514v1 · doi: 10.48550/arxiv.2012.02514 · pith_short_12: 2WT4LIHJHFNS · pith_short_16: 2WT4LIHJHFNSALBB · pith_short_8: 2WT4LIHJ

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/2WT4LIHJHFNSALBB3LIXBKIQJ5 \
  | 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: d5a7c5a0e9395b202c21dad170a9104f6b688e84b3eecfd1918234c53e5e4fd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db329f1010a9630707cbf3bcb1151dec12a08aa30943856af7bd711100dc9c11",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2020-12-04T10:46:06Z",
    "title_canon_sha256": "6ef355afd53f7419b9c6366fc6b8527ee96132fe6108fede79835dac570e51a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.02514",
    "kind": "arxiv",
    "version": 1
  }
}