Pith Number

pith:SFILM7R4

pith:2018:SFILM7R4J7DEFP2MADTZ5XGEL2

not attested not anchored not stored refs pending

Singularity methods for meromorphic solutions of differential equations

Chengfa Wu (Shenzhen U), Robert Conte (ENS Cachan), Tuen Wai Ng (Hong Kong U)

arxiv:1806.03177 v1 · 2018-06-08 · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SFILM7R4J7DEFP2MADTZ5XGEL2}

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	2026-05-18T00:13:49.404470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9150b67e3c4fc642bf4c00e79edcc45e91a9dfad9d35ade95afd8a7da0fc5c06

Aliases

arxiv: 1806.03177 · arxiv_version: 1806.03177v1 · doi: 10.48550/arxiv.1806.03177 · pith_short_12: SFILM7R4J7DE · pith_short_16: SFILM7R4J7DEFP2M · pith_short_8: SFILM7R4

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/SFILM7R4J7DEFP2MADTZ5XGEL2 \
  | 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: 9150b67e3c4fc642bf4c00e79edcc45e91a9dfad9d35ade95afd8a7da0fc5c06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ece907d3e50b52730182a3860bece2492da858cff72d1fe2cc394e7fe930d6fa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2018-06-08T14:22:49Z",
    "title_canon_sha256": "7fd564ea98d8a68228b5dc2d655e1f3b725f6bf2534805a65e5ac18e2652f11a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.03177",
    "kind": "arxiv",
    "version": 1
  }
}