Pith Number

pith:7GZ6MRRW

pith:2014:7GZ6MRRWHLJCJHZPPLKQIWRZ5M

not attested not anchored not stored refs pending

Absorbing boundary conditions for the Westervelt equation

Barbara Kaltenbacher, Igor Shevchenko

arxiv:1408.5031 v1 · 2014-08-21 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7GZ6MRRWHLJCJHZPPLKQIWRZ5M}

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	2026-05-18T02:44:40.863630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9b3e646363ad2249f2f7ad5045a39eb075b27fb5f6898d9783f5e7278dbaff0

Aliases

arxiv: 1408.5031 · arxiv_version: 1408.5031v1 · doi: 10.48550/arxiv.1408.5031 · pith_short_12: 7GZ6MRRWHLJC · pith_short_16: 7GZ6MRRWHLJCJHZP · pith_short_8: 7GZ6MRRW

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/7GZ6MRRWHLJCJHZPPLKQIWRZ5M \
  | 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: f9b3e646363ad2249f2f7ad5045a39eb075b27fb5f6898d9783f5e7278dbaff0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f5c7ed0f1cb580a1011c7de007c5ed5eab6cc56c328b32a62a8bd84478ff264",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-08-21T15:11:03Z",
    "title_canon_sha256": "91ed8db1c7aec0646111326b3b195cc061c3e9614b6a4f2a9a5a41ea3277c8d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.5031",
    "kind": "arxiv",
    "version": 1
  }
}