Pith Number

pith:YR6ZPATW

pith:2026:YR6ZPATWLJJGIGT3QRJ2NS4L43

not attested not anchored not stored refs pending

Rectangular Multispectral Perturbation Theory

Bart De Moor, Christof Vermeersch, Sarthak De

arxiv:2605.21013 v1 · 2026-05-20 · 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{YR6ZPATWLJJGIGT3QRJ2NS4L43}

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	2026-05-21T01:05:32.319208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c47d9782765a52641a7b8453a6cb8be6f87bd2477fbb5e15516b23a4a8d8d593

Aliases

arxiv: 2605.21013 · arxiv_version: 2605.21013v1 · doi: 10.48550/arxiv.2605.21013 · pith_short_12: YR6ZPATWLJJG · pith_short_16: YR6ZPATWLJJGIGT3 · pith_short_8: YR6ZPATW

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/YR6ZPATWLJJGIGT3QRJ2NS4L43 \
  | 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: c47d9782765a52641a7b8453a6cb8be6f87bd2477fbb5e15516b23a4a8d8d593

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "695b5cdce528f8d76c727a8537695d58dfdb2eb55d639cb501b17e8dffaff2c9",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-05-20T10:49:12Z",
    "title_canon_sha256": "84c727d19a1cf1d9770a2516414f701ef6de0852e745980c3521b37e4340de18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21013",
    "kind": "arxiv",
    "version": 1
  }
}