Pith Number

pith:UPCNULVC

pith:2026:UPCNULVCA5QFWUJMJD2FRD5IEU

not attested not anchored not stored refs pending

A first look at Structured-Multiscale Algebraic Multigrid for Lattice Field Theory

Arnold Krechel, Jaime Fabi\'an Nieto Castellanos, Marc Alexander Schweitzer, Pauline Schauerte, Stefan Krieg

arxiv:2608.03515 v1 · 2026-08-04 · hep-lat

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UPCNULVCA5QFWUJMJD2FRD5IEU}

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	2026-08-05T01:36:00.788745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3c4da2ea207605b512c48f4588fa82528e8203bac90ceff17b02f9e2feeab4f

Aliases

arxiv: 2608.03515 · arxiv_version: 2608.03515v1 · doi: 10.48550/arxiv.2608.03515 · pith_short_12: UPCNULVCA5QF · pith_short_16: UPCNULVCA5QFWUJM · pith_short_8: UPCNULVC

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/UPCNULVCA5QFWUJMJD2FRD5IEU \
  | 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: a3c4da2ea207605b512c48f4588fa82528e8203bac90ceff17b02f9e2feeab4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0fc17d0f34b960d3abc6334b05f83b352c1cbf0322cbd3c07bdcf9e8206173f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-lat",
    "submitted_at": "2026-08-04T11:58:07Z",
    "title_canon_sha256": "873f3901907845f27d4c0dcd3384bfdd325fe35afea95759d23eaf94712d6390"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.03515",
    "kind": "arxiv",
    "version": 1
  }
}