Pith Number

pith:J2CJM37D

pith:2018:J2CJM37DUT3A7MU5HNHPKC32L4

not attested not anchored not stored refs pending

Self-adaptive absorbing boundary conditions for quasilinear acoustic wave propagation

Barbara Wohlmuth, Markus Muhr, Vanja Nikoli\'c

arxiv:1811.12790 v2 · 2018-11-30 · 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{J2CJM37DUT3A7MU5HNHPKC32L4}

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	2026-05-17T23:47:29.294414Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e84966fe3a4f60fb29d3b4ef50b7a5f04dc4174015758257da00ff09bada2a3

Aliases

arxiv: 1811.12790 · arxiv_version: 1811.12790v2 · doi: 10.48550/arxiv.1811.12790 · pith_short_12: J2CJM37DUT3A · pith_short_16: J2CJM37DUT3A7MU5 · pith_short_8: J2CJM37D

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/J2CJM37DUT3A7MU5HNHPKC32L4 \
  | 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: 4e84966fe3a4f60fb29d3b4ef50b7a5f04dc4174015758257da00ff09bada2a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdd0b92f0904f52a0be7dab222b9c658a234373362a064dd964d84f1162ae43f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-11-30T13:43:10Z",
    "title_canon_sha256": "be96e13fc30ab6afcc6df5b09aa55f2880c30457afb18c7e3dcd02827db44a3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.12790",
    "kind": "arxiv",
    "version": 2
  }
}