Pith Number

pith:XIUOTYX2

pith:2026:XIUOTYX22RDRC7ILRWAFJYMQVC

not attested not anchored not stored refs pending

A Novel Computational and Analytical Framework for 2D Quasiperiodic Helmholtz Eigenvalue Problems via the Projection Method

Teng-Chao Sun, Tiexiang Li, Wen-Wei Lin, Xing-Long Lyu

arxiv:2605.27842 v1 · 2026-05-27 · math.NA · cs.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{XIUOTYX22RDRC7ILRWAFJYMQVC}

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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	2026-05-28T01:04:50.190004Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba28e9e2fad447117d0b8d8054e190a8a1964a41d49b1e5f86bbf13a60066909

Aliases

arxiv: 2605.27842 · arxiv_version: 2605.27842v1 · doi: 10.48550/arxiv.2605.27842 · pith_short_12: XIUOTYX22RDR · pith_short_16: XIUOTYX22RDRC7IL · pith_short_8: XIUOTYX2

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/XIUOTYX22RDRC7ILRWAFJYMQVC \
  | 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: ba28e9e2fad447117d0b8d8054e190a8a1964a41d49b1e5f86bbf13a60066909

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2ba6472114aa2c41ad68a3f04881fb18f3d46575b5c7d8292a9f9c378cedefc",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-05-27T01:57:29Z",
    "title_canon_sha256": "e3bb48f65a2f7be970a861ba2a5e30a09da3323b9f03912838f47e0151532873"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.27842",
    "kind": "arxiv",
    "version": 1
  }
}