Pith Number

pith:4GJYTTSH

pith:2009:4GJYTTSHVGS5IRCQIADOELBCUQ

not attested not anchored not stored refs pending

Perfectly Matched Layers for Coupled Nonlinear Schr\"{o}dinger Equations with Mixed Derivatives

Tom\'a\v{s} Dohnal

arxiv:0905.2321 v3 · 2009-05-14 · math.NA · nlin.PS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4GJYTTSHVGS5IRCQIADOELBCUQ}

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	2026-05-18T02:13:39.409636Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e19389ce47a9a5d444504006e22c22a4074ecc404b0805520dabac6dece0f3c0

Aliases

arxiv: 0905.2321 · arxiv_version: 0905.2321v3 · doi: 10.48550/arxiv.0905.2321 · pith_short_12: 4GJYTTSHVGS5 · pith_short_16: 4GJYTTSHVGS5IRCQ · pith_short_8: 4GJYTTSH

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/4GJYTTSHVGS5IRCQIADOELBCUQ \
  | 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: e19389ce47a9a5d444504006e22c22a4074ecc404b0805520dabac6dece0f3c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a82b60c58756c32f238d50ae9e75f2ac32c30a404679bf0665c28a1d119e9cc",
    "cross_cats_sorted": [
      "nlin.PS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2009-05-14T16:06:17Z",
    "title_canon_sha256": "742eae794e5de5008fd94f8190d30d591a59756e6dd5cf81b0ccd9934161cc51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.2321",
    "kind": "arxiv",
    "version": 3
  }
}