Pith Number

pith:L2GORRJP

pith:2016:L2GORRJP7PYLLCWF6TXJIRRHQ3

not attested not anchored not stored refs pending

Fine-structure constant constraints on dark energy: II. Extending the parameter space

A. Gusart, A. M. M. Pinho, C. I. S. A. Rocha, C. J. A. P. Martins, J. L\'opez, P. Carreira

arxiv:1601.02950 v1 · 2016-01-12 · astro-ph.CO · gr-qc · hep-ph · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L2GORRJP7PYLLCWF6TXJIRRHQ3}

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	2026-05-18T01:22:59.261694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e8ce8c52ffbf0b58ac5f4ee94462786ef386e02d327bbcfbcc43d6ea161c9e4

Aliases

arxiv: 1601.02950 · arxiv_version: 1601.02950v1 · doi: 10.48550/arxiv.1601.02950 · pith_short_12: L2GORRJP7PYL · pith_short_16: L2GORRJP7PYLLCWF · pith_short_8: L2GORRJP

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/L2GORRJP7PYLLCWF6TXJIRRHQ3 \
  | 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: 5e8ce8c52ffbf0b58ac5f4ee94462786ef386e02d327bbcfbcc43d6ea161c9e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a375b0064ef2a336e2d0b0a8108d32ac5b13399e7687bfbac924a9cb0b01a9c6",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2016-01-12T16:42:22Z",
    "title_canon_sha256": "0485da3d1c34f97c2c72f9f10ebc3286a30dd69dfc69870d7a9aa84c231364b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.02950",
    "kind": "arxiv",
    "version": 1
  }
}