Pith Number

pith:PSVEXPJY

pith:2018:PSVEXPJYEIJLOSJ6CGTGXVYALL

not attested not anchored not stored refs pending

A note on the discrete Cauchy-Kovalevskaya extension

Nelson Faustino

arxiv:1802.08605 v2 · 2018-02-23 · math.CV · math.AP · 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{PSVEXPJYEIJLOSJ6CGTGXVYALL}

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	2026-05-17T23:58:14.582641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7caa4bbd382212b7493e11a66bd7005afe084c227d7ee8e55866cf1729bfb637

Aliases

arxiv: 1802.08605 · arxiv_version: 1802.08605v2 · doi: 10.48550/arxiv.1802.08605 · pith_short_12: PSVEXPJYEIJL · pith_short_16: PSVEXPJYEIJLOSJ6 · pith_short_8: PSVEXPJY

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/PSVEXPJYEIJLOSJ6CGTGXVYALL \
  | 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: 7caa4bbd382212b7493e11a66bd7005afe084c227d7ee8e55866cf1729bfb637

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3787a7674d986ff2f79d6f52e42d9299fe567d41c09866e4cef8c931678b4a4d",
    "cross_cats_sorted": [
      "math.AP",
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2018-02-23T15:37:56Z",
    "title_canon_sha256": "203946c1f9f3c1bff13847b78284e2fa37bc6362a27cf3eea8e5649cf9a97690"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08605",
    "kind": "arxiv",
    "version": 2
  }
}