Pith Number

pith:W6XCZXPC

pith:2025:W6XCZXPCZKWJFEEB44X4Z7OXKQ

not attested not anchored not stored refs pending

NLAFormer: Transformers Learn Numerical Linear Algebra Operations

Michael K. Ng, Yihang Gao, Zhantao Ma

arxiv:2508.19557 v1 · 2025-08-27 · 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{W6XCZXPCZKWJFEEB44X4Z7OXKQ}

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	2026-07-05T12:00:14.012630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7ae2cdde2caac929081e72fccfdd75419c2e6cfc3aeac5f6e2d0d09e4965fc8

Aliases

arxiv: 2508.19557 · arxiv_version: 2508.19557v1 · doi: 10.48550/arxiv.2508.19557 · pith_short_12: W6XCZXPCZKWJ · pith_short_16: W6XCZXPCZKWJFEEB · pith_short_8: W6XCZXPC

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/W6XCZXPCZKWJFEEB44X4Z7OXKQ \
  | 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: b7ae2cdde2caac929081e72fccfdd75419c2e6cfc3aeac5f6e2d0d09e4965fc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d69c9e23e9a4cb26a83580e0a93d1d1ae2a45219e0ac20a8037aa4ad37c1997",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-08-27T04:09:29Z",
    "title_canon_sha256": "fe70c8bb6b8b8e37715c27f0eb341cfb0eb56c84ebd5af048b930f19c47512bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.19557",
    "kind": "arxiv",
    "version": 1
  }
}