Pith Number

pith:F5ZLVQLN

pith:2018:F5ZLVQLNKKFS2SOIH6MXSUBF7M

not attested not anchored not stored refs pending

Infinitely many periodic solutions for a semilinear wave equation with $x$-dependent coefficients

Hui Wei, Shuguan Ji

arxiv:1805.01670 v1 · 2018-05-04 · math.DS · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F5ZLVQLNKKFS2SOIH6MXSUBF7M}

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	2026-05-18T00:16:47.120218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f72bac16d528b2d49c83f99795025fb39403ae2ce34cfaaaf3def5605deb3bb

Aliases

arxiv: 1805.01670 · arxiv_version: 1805.01670v1 · doi: 10.48550/arxiv.1805.01670 · pith_short_12: F5ZLVQLNKKFS · pith_short_16: F5ZLVQLNKKFS2SOI · pith_short_8: F5ZLVQLN

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/F5ZLVQLNKKFS2SOIH6MXSUBF7M \
  | 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: 2f72bac16d528b2d49c83f99795025fb39403ae2ce34cfaaaf3def5605deb3bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d34d4fd282b886e1c979b51568485a52596eeac5b8f4bd9742a56fa96982998",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2018-05-04T09:04:17Z",
    "title_canon_sha256": "731480e1f051c16d3b8b1a5f2406171b7acf4795fa4c79fab50706093eff6d0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01670",
    "kind": "arxiv",
    "version": 1
  }
}