Pith Number

pith:D4K2C5P5

pith:2024:D4K2C5P5ISVHHSW3UPMUAWZTIK

not attested not anchored not stored refs pending

QR Decomposition of Dual Matrices and its Application to Traveling Wave Identification in the Brain

Pengpeng Xie, Renjie Xu, Tong Wei, Yimin Wei

arxiv:2404.13525 v1 · 2024-04-21 · 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{D4K2C5P5ISVHHSW3UPMUAWZTIK}

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	2026-07-05T08:10:33.631599Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f15a175fd44aa73cadba3d9405b33429ec73da1564f4b308902f86fcb2dc45e

Aliases

arxiv: 2404.13525 · arxiv_version: 2404.13525v1 · doi: 10.48550/arxiv.2404.13525 · pith_short_12: D4K2C5P5ISVH · pith_short_16: D4K2C5P5ISVHHSW3 · pith_short_8: D4K2C5P5

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/D4K2C5P5ISVHHSW3UPMUAWZTIK \
  | 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: 1f15a175fd44aa73cadba3d9405b33429ec73da1564f4b308902f86fcb2dc45e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccdae4a29257a9dbe22507445daa2db24aec36966642fcb6c225888bc603c435",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-04-21T04:32:34Z",
    "title_canon_sha256": "05d940376279944e5efaf80f2c86c2f9d760ead4143f5a0ac2554aba3d897a52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.13525",
    "kind": "arxiv",
    "version": 1
  }
}