Pith Number

pith:SWNQPDHH

pith:2021:SWNQPDHHLQVZ64BFL2BQ4P3UKZ

not attested not anchored not stored refs pending

An analysis of polarized parton distribution functions with nonlinear QCD evolution equations

Chengdong Han, Gang Xie, Rong Wang, Xurong Chen

arxiv:2108.12807 v2 · 2021-08-29 · 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{SWNQPDHHLQVZ64BFL2BQ4P3UKZ}

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	2026-07-05T05:18:23.213175Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

959b078ce75c2b9f70255e830e3f745663ae89fc7453ccfcc139b65084e07812

Aliases

arxiv: 2108.12807 · arxiv_version: 2108.12807v2 · doi: 10.48550/arxiv.2108.12807 · pith_short_12: SWNQPDHHLQVZ · pith_short_16: SWNQPDHHLQVZ64BF · pith_short_8: SWNQPDHH

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/SWNQPDHHLQVZ64BFL2BQ4P3UKZ \
  | 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: 959b078ce75c2b9f70255e830e3f745663ae89fc7453ccfcc139b65084e07812

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e705459e4f714e39a85ec4524ca4944b5ecab5f65de8e9d2cb2e54c1d466be3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2021-08-29T10:16:53Z",
    "title_canon_sha256": "d57cc79484cfceccc3c3362d2a75f994fe7589950340beb54d9721af160ec676"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.12807",
    "kind": "arxiv",
    "version": 2
  }
}