Pith Number

pith:JYR2BYRL

pith:2012:JYR2BYRL4QLSYKN4S7QXOZGPFO

not attested not anchored not stored refs pending

A note on the lifespan of solutions to the semilinear damped wave equation

Masahiro Ikeda, Yuta Wakasugi

arxiv:1212.1772 v3 · 2012-12-08 · 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{JYR2BYRL4QLSYKN4S7QXOZGPFO}

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	2026-05-18T01:35:01.266926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e23a0e22be4172c29bc97e17764cf2b9f81588343d95486b52d0a9e867feea0

Aliases

arxiv: 1212.1772 · arxiv_version: 1212.1772v3 · doi: 10.48550/arxiv.1212.1772 · pith_short_12: JYR2BYRL4QLS · pith_short_16: JYR2BYRL4QLSYKN4 · pith_short_8: JYR2BYRL

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/JYR2BYRL4QLSYKN4S7QXOZGPFO \
  | 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: 4e23a0e22be4172c29bc97e17764cf2b9f81588343d95486b52d0a9e867feea0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d1ebeacd82d28ade676072c3d851e7ab58b6e23c46e715e4019b60d74f96814",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-12-08T10:30:38Z",
    "title_canon_sha256": "ff76f30d467da07a567e48c4d46e6a71e6c8fb526c4f2898c63f5e19871c8692"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.1772",
    "kind": "arxiv",
    "version": 3
  }
}