Pith Number

pith:Y7643GNO

pith:2008:Y7643GNO4GCLISOMD5MP4SVV7N

not attested not anchored not stored refs pending

Global Analysis of Helicity Parton Densities and Their Uncertainties

Daniel de Florian, Marco Stratmann, Rodolfo Sassot, Werner Vogelsang

arxiv:0804.0422 v1 · 2008-04-02 · 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{Y7643GNO4GCLISOMD5MP4SVV7N}

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	2026-07-04T15:29:58.394208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7fdcd99aee184b449cc1f58fe4ab5fb55603ded29e9dc8beed0ba908034dbe8

Aliases

arxiv: 0804.0422 · arxiv_version: 0804.0422v1 · doi: 10.48550/arxiv.0804.0422 · pith_short_12: Y7643GNO4GCL · pith_short_16: Y7643GNO4GCLISOM · pith_short_8: Y7643GNO

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/Y7643GNO4GCLISOMD5MP4SVV7N \
  | 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: c7fdcd99aee184b449cc1f58fe4ab5fb55603ded29e9dc8beed0ba908034dbe8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d03c5a1c8f81a8fb1c01c4ce2c1dcf3afb1bf6c68e7bd9719058826d0695fc9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2008-04-02T19:52:08Z",
    "title_canon_sha256": "86592ed8ec0e779f6f16524f0c7e49c8be1e68a1ef9c321ed6d5b35c40271a01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.0422",
    "kind": "arxiv",
    "version": 1
  }
}