Pith Number

pith:WH5N4V4Y

pith:2026:WH5N4V4YICQT5CHNHBBF2UNERM

not attested not anchored not stored refs pending

Sparse space-time spectral methods can time-step by peel and pass

Timon S. Gutleb

arxiv:2607.06449 v1 · 2026-07-07 · 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{WH5N4V4YICQT5CHNHBBF2UNERM}

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	2026-07-08T01:19:25.595722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1fade579840a13e88ed38425d51a48b33af27f790d339d5a9e11b05aeb2c01b

Aliases

arxiv: 2607.06449 · arxiv_version: 2607.06449v1 · doi: 10.48550/arxiv.2607.06449 · pith_short_12: WH5N4V4YICQT · pith_short_16: WH5N4V4YICQT5CHN · pith_short_8: WH5N4V4Y

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/WH5N4V4YICQT5CHNHBBF2UNERM \
  | 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: b1fade579840a13e88ed38425d51a48b33af27f790d339d5a9e11b05aeb2c01b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa9aacbafd90a37fd2ee266f49e66a0ecfee271c0585fc3403faab7dd5c5e5f6",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-07-07T16:12:22Z",
    "title_canon_sha256": "e2b77e1361a77a279df013b7aedb4a875d95398e5e8f0fd5b84d3fd949dc8aba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.06449",
    "kind": "arxiv",
    "version": 1
  }
}