Pith Number

pith:6B6XM3ZN

pith:2012:6B6XM3ZNGMQ2U7YCVUHG2QC32G

not attested not anchored not stored refs pending

The variation of fundamental constants and the role of A=5 and A=8 nuclei on primordial nucleosynthesis

Alain Coc, Elisabeth Vangioni, Jean-Philippe Uzan, Keith Olive, Pierre Descouvemont

arxiv:1206.1139 v1 · 2012-06-06 · astro-ph.CO · 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{6B6XM3ZNGMQ2U7YCVUHG2QC32G}

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	2026-05-18T03:22:40.445922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f07d766f2d3321aa7f02ad0e6d405bd1ba63c4a1abe2702e699453b9cea33120

Aliases

arxiv: 1206.1139 · arxiv_version: 1206.1139v1 · doi: 10.48550/arxiv.1206.1139 · pith_short_12: 6B6XM3ZNGMQ2 · pith_short_16: 6B6XM3ZNGMQ2U7YC · pith_short_8: 6B6XM3ZN

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/6B6XM3ZNGMQ2U7YCVUHG2QC32G \
  | 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: f07d766f2d3321aa7f02ad0e6d405bd1ba63c4a1abe2702e699453b9cea33120

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edd4273b9f951b0ee1c5adcea205e620cb58f0b1cff2186b0cc2e074279710b4",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-06-06T08:04:38Z",
    "title_canon_sha256": "a7bef2950ab5c419fbd4397e22dd2f01771678920b7b469e7aca05a6df572fd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.1139",
    "kind": "arxiv",
    "version": 1
  }
}