Pith Number

pith:DHEPHUIP

pith:2016:DHEPHUIP7YVFX66VGKN6XTH44U

not attested not anchored not stored refs pending

Variations in the fine structure constant constraining gravity theories

C. R. Muniz, H. S. Vieira, M. O. Tahim, M. S. Cunha, V. B. Bezerra

arxiv:1604.07092 v2 · 2016-04-24 · gr-qc · astro-ph.SR · 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{DHEPHUIP7YVFX66VGKN6XTH44U}

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	2026-05-18T01:03:59.130489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19c8f3d10ffe2a5bfbd5329bebccfce53d8199c94f45b7be9ed2bd04147267a7

Aliases

arxiv: 1604.07092 · arxiv_version: 1604.07092v2 · doi: 10.48550/arxiv.1604.07092 · pith_short_12: DHEPHUIP7YVF · pith_short_16: DHEPHUIP7YVFX66V · pith_short_8: DHEPHUIP

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/DHEPHUIP7YVFX66VGKN6XTH44U \
  | 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: 19c8f3d10ffe2a5bfbd5329bebccfce53d8199c94f45b7be9ed2bd04147267a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c5e0ccdfa9103a936068c8daaa07c7d1561f04e078f07cac425910e9d57fc82",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-04-24T23:00:30Z",
    "title_canon_sha256": "395fbd3e0f838108828b6182025f5262ba9c7b45a408aa01faf95c515a92b1dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.07092",
    "kind": "arxiv",
    "version": 2
  }
}