Pith Number

pith:XXTC2RUM

pith:2001:XXTC2RUMVPLTKPVZFK4CIHULFV

not attested not anchored not stored refs pending

An analysis of helium primordial nucleosynthesis with a variable cosmological coupling

Brazil), F.G. Alvarenga, J.A.O. Marinho (Departamento de Fisica, J.C. Fabris, S.V.B. Goncalves, Universidade Federal do Espirito Santo

arxiv:gr-qc/0105062 v1 · 2001-05-17 · gr-qc · 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{XXTC2RUMVPLTKPVZFK4CIHULFV}

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	2026-05-18T01:39:24.254527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bde62d468cabd7353eb92ab8241e8b2d6da20256cc60251a8fd45da7c2eed450

Aliases

arxiv: gr-qc/0105062 · arxiv_version: gr-qc/0105062v1 · doi: 10.48550/arxiv.gr-qc/0105062 · pith_short_12: XXTC2RUMVPLT · pith_short_16: XXTC2RUMVPLTKPVZ · pith_short_8: XXTC2RUM

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/XXTC2RUMVPLTKPVZFK4CIHULFV \
  | 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: bde62d468cabd7353eb92ab8241e8b2d6da20256cc60251a8fd45da7c2eed450

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "119e92db6e4ded62224b333b8fd73dac043802104c740f4c7d6079a79c551c3b",
    "cross_cats_sorted": [
      "astro-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2001-05-17T20:12:31Z",
    "title_canon_sha256": "df02c28e29e41ced71775d9ca7b14b6e3de4a4ed0fe95d68794181a1e2f7f42f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0105062",
    "kind": "arxiv",
    "version": 1
  }
}