Pith Number

pith:K3FISOMB

pith:2002:K3FISOMBWR4HNW5QQMK4DIOVCJ

not attested not anchored not stored refs pending

On the formation of singularities of solutions of nonlinear differential systems in antistokes directions

O. Costin, R. D. Costin

arxiv:math/0202234 v2 · 2002-02-22 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K3FISOMBWR4HNW5QQMK4DIOVCJ}

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	2026-05-18T01:38:29.659581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56ca893981b47876dbb08315c1a1d5125add8a1f06a544e5e08889ccbd43be88

Aliases

arxiv: math/0202234 · arxiv_version: math/0202234v2 · doi: 10.48550/arxiv.math/0202234 · pith_short_12: K3FISOMBWR4H · pith_short_16: K3FISOMBWR4HNW5Q · pith_short_8: K3FISOMB

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/K3FISOMBWR4HNW5QQMK4DIOVCJ \
  | 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: 56ca893981b47876dbb08315c1a1d5125add8a1f06a544e5e08889ccbd43be88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81c595e235c12dc5d9b1f0601b08b783036a6ce16f80673c43e1f080d2708a58",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.CA",
    "submitted_at": "2002-02-22T21:00:03Z",
    "title_canon_sha256": "84d8f1a1ead1bc1583a0c7e8b03605b768beacf51aa7fcd76db29dd134756fe1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0202234",
    "kind": "arxiv",
    "version": 2
  }
}