Pith Number

pith:QUSD4L27

pith:2009:QUSD4L275DPP6UXAML6IPIYAUS

not attested not anchored not stored refs pending

Taming Landau singularities in QCD perturbation theory: The analytic approach 2.0

N. G. Stefanis

arxiv:0902.4805 v4 · 2009-02-27 · hep-ph · hep-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{QUSD4L275DPP6UXAML6IPIYAUS}

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	2026-05-18T01:21:03.239612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85243e2f5fe8deff52e062fc87a300a480756bf36ace0a5ba6d7700a5cd20b1e

Aliases

arxiv: 0902.4805 · arxiv_version: 0902.4805v4 · doi: 10.48550/arxiv.0902.4805 · pith_short_12: QUSD4L275DPP · pith_short_16: QUSD4L275DPP6UXA · pith_short_8: QUSD4L27

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/QUSD4L275DPP6UXAML6IPIYAUS \
  | 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: 85243e2f5fe8deff52e062fc87a300a480756bf36ace0a5ba6d7700a5cd20b1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45902fd1e245cec3b49bf5570fe4f2fb9f69917165b14775bf304d5bfc8a011c",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2009-02-27T14:54:51Z",
    "title_canon_sha256": "af8a5645557e9850f336df63f93b27b862356f62099e60aa7fca6ff6f7af6498"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.4805",
    "kind": "arxiv",
    "version": 4
  }
}