Pith Number

pith:7CUALXZH

pith:2007:7CUALXZHBSHY4UWDGMPGSXGEDI

not attested not anchored not stored refs pending

A Simultaneous Solution to the ^6Li and ^7Li Big Bang Nucleosynthesis Problems from a Long-Lived Negatively-Charged Leptonic Particle

Grant J. Mathews, Motohiko Kusakabe, Richard N. Boyd, Takashi Yoshida, Toshitaka Kajino

arxiv:0711.3854 v1 · 2007-11-24 · astro-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{7CUALXZHBSHY4UWDGMPGSXGEDI}

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	2026-07-04T15:33:59.186362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8a805df270c8f8e52c3331e695cc41a1e12c27664f34614e550d3fe427a51ed

Aliases

arxiv: 0711.3854 · arxiv_version: 0711.3854v1 · doi: 10.48550/arxiv.0711.3854 · pith_short_12: 7CUALXZHBSHY · pith_short_16: 7CUALXZHBSHY4UWD · pith_short_8: 7CUALXZH

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/7CUALXZHBSHY4UWDGMPGSXGEDI \
  | 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: f8a805df270c8f8e52c3331e695cc41a1e12c27664f34614e550d3fe427a51ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9310fc94d91169324f190312640700476350da4e6866d0104ff531e60ade8230",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-11-24T17:59:05Z",
    "title_canon_sha256": "61a0ee616a87395028eba51821b28fa87f04370cd481682ca7faaea2a0860359"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.3854",
    "kind": "arxiv",
    "version": 1
  }
}