Pith Number

pith:DEDLFQLD

pith:2012:DEDLFQLDUJOCYD4ULUN5DEY2CA

not attested not anchored not stored refs pending

How to measure the charm density in the proton

N. Ya. Ivanov

arxiv:1212.3785 v1 · 2012-12-16 · 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{DEDLFQLDUJOCYD4ULUN5DEY2CA}

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	2026-05-18T03:38:22.400419Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1906b2c163a25c2c0f945d1bd1931a10201a996853ec6f2f0134d0e806ae4ff0

Aliases

arxiv: 1212.3785 · arxiv_version: 1212.3785v1 · doi: 10.48550/arxiv.1212.3785 · pith_short_12: DEDLFQLDUJOC · pith_short_16: DEDLFQLDUJOCYD4U · pith_short_8: DEDLFQLD

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/DEDLFQLDUJOCYD4ULUN5DEY2CA \
  | 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: 1906b2c163a25c2c0f945d1bd1931a10201a996853ec6f2f0134d0e806ae4ff0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f37428c26994f30f4fcd94579b8aa7b5e4307ca814a6041930ca91e6079bc8b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2012-12-16T12:44:53Z",
    "title_canon_sha256": "3c807d9c33d7f2921c5940805209c2ebc98cb1fc6ef4c5abdaa995f12634a43b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.3785",
    "kind": "arxiv",
    "version": 1
  }
}