Pith Number

pith:SQMWQDJW

pith:1999:SQMWQDJWTCIQPUQKRHE5EX5KYY

not attested not anchored not stored refs pending

Optimized Lambda-Parametrization for the QCD Running Coupling Constant in Spacelike and Timelike Regions

A.V. Radyushkin

arxiv:hep-ph/9907228 v2 · 1999-07-05 · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SQMWQDJWTCIQPUQKRHE5EX5KYY}

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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

Perturbative QCD fitting of KEDR and BESIII $e^+e^-$ data for R(s) and $\alpha_s$ determination

Receipt and verification

First computed	2026-05-18T02:36:27.769046Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9419680d36989107d20a89c9d25faac60728e9daa672ec70a952038f2d63c222

Aliases

arxiv: hep-ph/9907228 · arxiv_version: hep-ph/9907228v2 · doi: 10.48550/arxiv.hep-ph/9907228 · pith_short_12: SQMWQDJWTCIQ · pith_short_16: SQMWQDJWTCIQPUQK · pith_short_8: SQMWQDJW

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/SQMWQDJWTCIQPUQKRHE5EX5KYY \
  | 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: 9419680d36989107d20a89c9d25faac60728e9daa672ec70a952038f2d63c222

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ecf5f672358b1a4b498b07da23bb33bbf267b9b8aca9825c846f913f5f0d566",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "1999-07-05T13:14:09Z",
    "title_canon_sha256": "f3bbaee3dcaa726ceca9c1115cedb2912a5359daa197d59558b4df95efad1267"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/9907228",
    "kind": "arxiv",
    "version": 2
  }
}