Pith Number

pith:ZFC4OCPE

pith:2025:ZFC4OCPEN4WM3F4UOUB4GCLCHK

not attested not anchored not stored refs pending

Chiral rank-$k$ truncations for the multigrid preconditioner of Wilson fermions in lattice QCD

Andreas Stathopoulos, Eloy Romero, Travis Whyte

arxiv:2502.03091 v1 · 2025-02-05 · hep-lat · cs.NA · math.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{ZFC4OCPEN4WM3F4UOUB4GCLCHK}

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	2026-07-05T10:09:59.469301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c945c709e46f2ccd97947503c309623a8797556524d57d541a76c437947b6c76

Aliases

arxiv: 2502.03091 · arxiv_version: 2502.03091v1 · doi: 10.48550/arxiv.2502.03091 · pith_short_12: ZFC4OCPEN4WM · pith_short_16: ZFC4OCPEN4WM3F4U · pith_short_8: ZFC4OCPE

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/ZFC4OCPEN4WM3F4UOUB4GCLCHK \
  | 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: c945c709e46f2ccd97947503c309623a8797556524d57d541a76c437947b6c76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "493bf403835a2d174c3d82b78ead3ad2e81ff16b939bfeace79979e3de4e9133",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-lat",
    "submitted_at": "2025-02-05T11:30:12Z",
    "title_canon_sha256": "4eeaf3286acd2e05cf94dfa6555fc3975de45f3f4c96cfc682cabcb7ef899fb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.03091",
    "kind": "arxiv",
    "version": 1
  }
}