Pith Number

pith:IMFS6PG7

pith:2018:IMFS6PG7C7DZIAQVQZTLIXFVJE

not attested not anchored not stored refs pending

Using B-spline frames to approximate solutions of acoustic scattering problems

Wolfgang Kreuzer

arxiv:1801.09483 v2 · 2018-01-29 · 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{IMFS6PG7C7DZIAQVQZTLIXFVJE}

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	2026-05-17T23:59:33.055913Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

430b2f3cdf17c79402158666b45cb54938afef1038bff40d49b8d4e1a5341017

Aliases

arxiv: 1801.09483 · arxiv_version: 1801.09483v2 · doi: 10.48550/arxiv.1801.09483 · pith_short_12: IMFS6PG7C7DZ · pith_short_16: IMFS6PG7C7DZIAQV · pith_short_8: IMFS6PG7

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/IMFS6PG7C7DZIAQVQZTLIXFVJE \
  | 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: 430b2f3cdf17c79402158666b45cb54938afef1038bff40d49b8d4e1a5341017

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac949f3775fa98ab24cc759917322ac58a1f6bdaa31a347ab7c66f4abb563094",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-01-29T13:01:18Z",
    "title_canon_sha256": "2c913f0eb236239e5c215c68a6de06a5801f4223039c9f1248046391f860f8a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.09483",
    "kind": "arxiv",
    "version": 2
  }
}