Pith Number

pith:VV5P4A6P

pith:2017:VV5P4A6PKI7U4QNWUYMIL54POS

not attested not anchored not stored refs pending

Nonstandard Fourier Pseudospectral Time Domain (PSTD) Schemes for Partial Differential Equations

Bradley E. Treeby, B. T. Cox, Elliott S. Wise

arxiv:1709.02962 v2 · 2017-09-09 · physics.comp-ph · 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{VV5P4A6PKI7U4QNWUYMIL54POS}

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	2026-05-18T00:20:24.324499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad7afe03cf523f4e41b6a61885f78f74a5df7d111216d4941013dfd3c92c4c47

Aliases

arxiv: 1709.02962 · arxiv_version: 1709.02962v2 · doi: 10.48550/arxiv.1709.02962 · pith_short_12: VV5P4A6PKI7U · pith_short_16: VV5P4A6PKI7U4QNW · pith_short_8: VV5P4A6P

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/VV5P4A6PKI7U4QNWUYMIL54POS \
  | 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: ad7afe03cf523f4e41b6a61885f78f74a5df7d111216d4941013dfd3c92c4c47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63a0c46361847c60a3b7d964de319a709e77cad4c26881bae13c50f94fbb029a",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2017-09-09T15:11:04Z",
    "title_canon_sha256": "519ed1acefbd19f2b2a7cc555ff68053a776ec7b1b664e3af958af6dfdff7faa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02962",
    "kind": "arxiv",
    "version": 2
  }
}