Pith Number

pith:SOMWDB5T

pith:2017:SOMWDB5T3JTJIO7HBIW65Z6VCS

not attested not anchored not stored refs pending

Fractional derivatives of composite functions and the Cauchy problem for the nonlinear half wave equation

Chengbo Wang, Kunio Hidano

arxiv:1707.08319 v1 · 2017-07-26 · 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{SOMWDB5T3JTJIO7HBIW65Z6VCS}

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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	2026-05-18T00:39:24.610429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93996187b3da66943be70a2deee7d51498369d69e7d8287cbcda9b43612c5156

Aliases

arxiv: 1707.08319 · arxiv_version: 1707.08319v1 · doi: 10.48550/arxiv.1707.08319 · pith_short_12: SOMWDB5T3JTJ · pith_short_16: SOMWDB5T3JTJIO7H · pith_short_8: SOMWDB5T

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/SOMWDB5T3JTJIO7HBIW65Z6VCS \
  | 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: 93996187b3da66943be70a2deee7d51498369d69e7d8287cbcda9b43612c5156

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ef36b46c3d6ccbdc443aa0640351ceb93d902869ed73947c66962e0cb81238d",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-07-26T08:34:40Z",
    "title_canon_sha256": "7ba74b22ad75ae2844c466f66d0c10f5c8cc10bbaeba65d7ad757036cd37182f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.08319",
    "kind": "arxiv",
    "version": 1
  }
}