Pith Number

pith:74NDFYE7

pith:2017:74NDFYE7H3OS5IXD7Q34N3YLZC

not attested not anchored not stored refs pending

Life-span of solutions to semilinear wave equation with time-dependent critical damping for specially localized initial data

Masahiro Ikeda, Motohiro Sobajima

arxiv:1709.04406 v1 · 2017-09-13 · 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{74NDFYE7H3OS5IXD7Q34N3YLZC}

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	2026-05-18T00:35:14.453945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff1a32e09f3edd2ea2e3fc37c6ef0bc8966258b1c093fe18072a66dd223ea2d1

Aliases

arxiv: 1709.04406 · arxiv_version: 1709.04406v1 · doi: 10.48550/arxiv.1709.04406 · pith_short_12: 74NDFYE7H3OS · pith_short_16: 74NDFYE7H3OS5IXD · pith_short_8: 74NDFYE7

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/74NDFYE7H3OS5IXD7Q34N3YLZC \
  | 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: ff1a32e09f3edd2ea2e3fc37c6ef0bc8966258b1c093fe18072a66dd223ea2d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fef23d9eba1270d52e1dc69ff5f8952cc2a47cc3641358099fc832e85ca51607",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-09-13T16:25:31Z",
    "title_canon_sha256": "77901559e99d1c313703109fffb159015214d049667101d90ab58492bc251a5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.04406",
    "kind": "arxiv",
    "version": 1
  }
}