Pith Number

pith:ZE4NQNXM

pith:2018:ZE4NQNXMYKUJ3M22HELXOLDPWH

not attested not anchored not stored refs pending

Qualitative analysis of differential equations

Alexander V Panfilov

arxiv:1803.05291 v1 · 2018-03-10 · math.GM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZE4NQNXMYKUJ3M22HELXOLDPWH}

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	2026-05-18T00:21:01.690919Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c938d836ecc2a89db35a3917772c6fb1ff140db3687af8e5dcbbb731a67a6847

Aliases

arxiv: 1803.05291 · arxiv_version: 1803.05291v1 · doi: 10.48550/arxiv.1803.05291 · pith_short_12: ZE4NQNXMYKUJ · pith_short_16: ZE4NQNXMYKUJ3M22 · pith_short_8: ZE4NQNXM

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/ZE4NQNXMYKUJ3M22HELXOLDPWH \
  | 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: c938d836ecc2a89db35a3917772c6fb1ff140db3687af8e5dcbbb731a67a6847

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2319d75f285ac257c914a3795a256d9b3cfa8aab7f3c1e24a9d95dcfe604d85b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2018-03-10T17:11:12Z",
    "title_canon_sha256": "f0185e6ed935ad445167e5af16c9cfe062515c7626c038b177cc79d1fca3ac07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.05291",
    "kind": "arxiv",
    "version": 1
  }
}