Pith Number

pith:K5XSENAC

pith:2015:K5XSENACQHRFL6MX4REEMJT6IU

not attested not anchored not stored refs pending

Dark energy and Equivalence Principle constraints from astrophysical tests of the stability of the fine-structure constant

A. M. M. Pinho, C. I. S. A. Rocha, C. J. A. P. Martins, M. Pino, M. von Wietersheim, R. F. C. Alves

arxiv:1508.06157 v1 · 2015-08-25 · 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{K5XSENACQHRFL6MX4REEMJT6IU}

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	2026-05-18T01:33:41.748268Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

576f22340281e255f997e44846267e452cd991962e9a540a1f18f8f3dffdc3bf

Aliases

arxiv: 1508.06157 · arxiv_version: 1508.06157v1 · doi: 10.48550/arxiv.1508.06157 · pith_short_12: K5XSENACQHRF · pith_short_16: K5XSENACQHRFL6MX · pith_short_8: K5XSENAC

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/K5XSENACQHRFL6MX4REEMJT6IU \
  | 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: 576f22340281e255f997e44846267e452cd991962e9a540a1f18f8f3dffdc3bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "828a853b2d2fcfbbd8eaf2565b206e3130da2269ebb23f181e34f9de96711355",
    "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": "2015-08-25T13:57:36Z",
    "title_canon_sha256": "2a1edfbd3ed1896dc68fce7e7e17455dbf89431dd234d8ae8ce4ad6003c2970a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.06157",
    "kind": "arxiv",
    "version": 1
  }
}