Pith Number

pith:FKHZ4FMG

pith:2002:FKHZ4FMGKS2OIKCWSQCQCAOWQ6

not attested not anchored not stored refs pending

Neutrinos and Big Bang Nucleosynthesis

A.D. Dolgov

arxiv:hep-ph/0203164 v1 · 2002-03-18 · 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{FKHZ4FMGKS2OIKCWSQCQCAOWQ6}

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	2026-05-18T04:36:19.215587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a8f9e158654b4e4285694050101d68792be7f7054c8679755e4367a12aeb987

Aliases

arxiv: hep-ph/0203164 · arxiv_version: hep-ph/0203164v1 · doi: 10.48550/arxiv.hep-ph/0203164 · pith_short_12: FKHZ4FMGKS2O · pith_short_16: FKHZ4FMGKS2OIKCW · pith_short_8: FKHZ4FMG

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/FKHZ4FMGKS2OIKCWSQCQCAOWQ6 \
  | 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: 2a8f9e158654b4e4285694050101d68792be7f7054c8679755e4367a12aeb987

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02b47b29d9c3b7c312514ee3dc9acbd44427bcbda5bcb28a49eb09bba117f01a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "2002-03-18T11:50:33Z",
    "title_canon_sha256": "32bc33dbf2d272dd8320912f3e169c0db2b73fa23860637718a71eff59113bd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/0203164",
    "kind": "arxiv",
    "version": 1
  }
}