Pith Number

pith:VFXBKY4K

pith:2021:VFXBKY4K234SLWROFS3VNWF7RG

not attested not anchored not stored refs pending

Improved Standard-Model prediction for $\pi^0\to e^+e^-$

Bai-Long Hoid, Bastian Kubis, Jan L\"udtke, Martin Hoferichter

arxiv:2105.04563 v2 · 2021-05-10 · hep-ph · hep-ex · hep-lat · nucl-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VFXBKY4K234SLWROFS3VNWF7RG}

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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.

Cited by

1 paper in Pith

Improved Standard-Model predictions for $\eta^{(\prime)}\to \ell^+ \ell^-$

Receipt and verification

First computed	2026-07-05T04:18:46.778429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a96e15638ad6f925da2e2cb756d8bf89935e4c77586b7530a1d33d32dd8bb467

Aliases

arxiv: 2105.04563 · arxiv_version: 2105.04563v2 · doi: 10.48550/arxiv.2105.04563 · pith_short_12: VFXBKY4K234S · pith_short_16: VFXBKY4K234SLWRO · pith_short_8: VFXBKY4K

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/VFXBKY4K234SLWROFS3VNWF7RG \
  | 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: a96e15638ad6f925da2e2cb756d8bf89935e4c77586b7530a1d33d32dd8bb467

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28795571436f2e5fcba72ef0da90419a9b99b593d3b00ef9463f205f0cf0647e",
    "cross_cats_sorted": [
      "hep-ex",
      "hep-lat",
      "nucl-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2021-05-10T18:00:01Z",
    "title_canon_sha256": "0abb7aac4cf4fdb5a7d9e687107a8418832fa227e63b723037b93ccb7bf7c61b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.04563",
    "kind": "arxiv",
    "version": 2
  }
}