Pith Number

pith:4VY4KV6T

pith:2013:4VY4KV6TAQLGUUCMOPUWLKYSTZ

not attested not anchored not stored refs pending

Unbiased determination of polarized parton distributions and their uncertainties

Alberto Guffanti, Emanuele R. Nocera, Giovanni Ridolfi, Juan Rojo, Stefano Forte, The NNPDF Collaboration: Richard D. Ball

arxiv:1303.7236 v1 · 2013-03-28 · 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{4VY4KV6TAQLGUUCMOPUWLKYSTZ}

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	2026-05-18T03:29:29.062675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e571c557d304166a504c73e965ab129e4b4f8de2a4d791929121214d437027f3

Aliases

arxiv: 1303.7236 · arxiv_version: 1303.7236v1 · doi: 10.48550/arxiv.1303.7236 · pith_short_12: 4VY4KV6TAQLG · pith_short_16: 4VY4KV6TAQLGUUCM · pith_short_8: 4VY4KV6T

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/4VY4KV6TAQLGUUCMOPUWLKYSTZ \
  | 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: e571c557d304166a504c73e965ab129e4b4f8de2a4d791929121214d437027f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c132ba0edd7a2eddc2ab352b3b3939d8e3d41c94a8a7a50d0779a306097d972d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2013-03-28T20:00:05Z",
    "title_canon_sha256": "ffb2c6bc71858cd5d53a3440cbd6253463d7ec4cfb631d10e67a1eaa17717fa5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.7236",
    "kind": "arxiv",
    "version": 1
  }
}