Pith Number

pith:23IHO7PU

pith:2018:23IHO7PUF7LBFDRNIOILILMVP3

not attested not anchored not stored refs pending

Sharp ill-posedness of the Dirac-Klein-Gordon system in one dimension

Mamoru Okamoto, Shuji Machihara

arxiv:1808.07642 v1 · 2018-08-23 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{23IHO7PUF7LBFDRNIOILILMVP3}

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	2026-05-18T00:07:26.650948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6d0777df42fd6128e2d4390b42d957ee6854d73da25dba0b20d074a6c910a89

Aliases

arxiv: 1808.07642 · arxiv_version: 1808.07642v1 · doi: 10.48550/arxiv.1808.07642 · pith_short_12: 23IHO7PUF7LB · pith_short_16: 23IHO7PUF7LBFDRN · pith_short_8: 23IHO7PU

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/23IHO7PUF7LBFDRNIOILILMVP3 \
  | 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: d6d0777df42fd6128e2d4390b42d957ee6854d73da25dba0b20d074a6c910a89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0627653df0d64de86b912ea5f2200be003b469abc74bdc2ece758943a6e27d12",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-08-23T06:06:57Z",
    "title_canon_sha256": "213d72e14ba6e2218a618f8a2cbea0e868f4511983e6da9771a58aa03cc5ac55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.07642",
    "kind": "arxiv",
    "version": 1
  }
}