Pith Number

pith:SQKI4STG

pith:2015:SQKI4STGNZXNKAMEFGYBUQJOBJ

not attested not anchored not stored refs pending

Convergence of summation-by-parts finite difference methods for the wave equation

Gunilla Kreiss, Siyang Wang

arxiv:1503.08926 v2 · 2015-03-31 · 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{SQKI4STGNZXNKAMEFGYBUQJOBJ}

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	2026-05-18T01:34:05.287446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94148e4a666e6ed5018429b01a412e0a4d3b23342c30fb68eb9c0670ac32287c

Aliases

arxiv: 1503.08926 · arxiv_version: 1503.08926v2 · doi: 10.48550/arxiv.1503.08926 · pith_short_12: SQKI4STGNZXN · pith_short_16: SQKI4STGNZXNKAME · pith_short_8: SQKI4STG

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/SQKI4STGNZXNKAMEFGYBUQJOBJ \
  | 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: 94148e4a666e6ed5018429b01a412e0a4d3b23342c30fb68eb9c0670ac32287c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f8853f1b1fe773c963c6592d34a5c7d5ce2da21519fa455b1fe763ba8e36655",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-03-31T06:14:58Z",
    "title_canon_sha256": "9f51d90c2532455ae9d227d98c5a7c373327bc72f9fb470cb44b49eaa2815f96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.08926",
    "kind": "arxiv",
    "version": 2
  }
}