Pith Number

pith:EOGORA5M

pith:2022:EOGORA5MWCQ4PTJV56L5PWWGD7

not attested not anchored not stored refs pending

On the exponential time-decay for the one-dimensional wave equation with variable coefficients

Anton Arnold, Dmitry Ponomarev, Ilaria Perugia, Sjoerd Geevers

arxiv:2201.04379 v2 · 2022-01-12 · 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{EOGORA5MWCQ4PTJV56L5PWWGD7}

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	2026-07-05T04:27:10.370100Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

238ce883acb0a1c7cd35ef97d7dac61fd05455de77d66f1ae17980de67661214

Aliases

arxiv: 2201.04379 · arxiv_version: 2201.04379v2 · doi: 10.48550/arxiv.2201.04379 · pith_short_12: EOGORA5MWCQ4 · pith_short_16: EOGORA5MWCQ4PTJV · pith_short_8: EOGORA5M

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/EOGORA5MWCQ4PTJV56L5PWWGD7 \
  | 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: 238ce883acb0a1c7cd35ef97d7dac61fd05455de77d66f1ae17980de67661214

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5517bac8a016f02204bc5290abfae7674db7e9f723a0a7752ebbcbda83e4427a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2022-01-12T09:26:27Z",
    "title_canon_sha256": "a4214ea8a504c5959a95cf2be938f432cd27752a6752221c65eafe4ab237b95c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.04379",
    "kind": "arxiv",
    "version": 2
  }
}