Pith Number

pith:ULMXFOFS

pith:2019:ULMXFOFSLCK6OU5LGNUJIJVVPG

not attested not anchored not stored refs pending

Generalized Brans-Dicke theories in light of evolving dark energy

Alessandra Silvestri, Alex Zucca, Gong-Bo Zhao, Levon Pogosian, Yuting Wang

arxiv:1907.07667 v2 · 2019-07-17 · astro-ph.CO · gr-qc · 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{ULMXFOFSLCK6OU5LGNUJIJVVPG}

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	2026-07-05T00:41:32.896202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2d972b8b25895e753ab33689426b5799c55e9fa39e4debf67dc42202383a063

Aliases

arxiv: 1907.07667 · arxiv_version: 1907.07667v2 · doi: 10.48550/arxiv.1907.07667 · pith_short_12: ULMXFOFSLCK6 · pith_short_16: ULMXFOFSLCK6OU5L · pith_short_8: ULMXFOFS

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/ULMXFOFSLCK6OU5LGNUJIJVVPG \
  | 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: a2d972b8b25895e753ab33689426b5799c55e9fa39e4debf67dc42202383a063

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "066d1569ff57bc4f47a302ecce43409d4094e8adbc6452ed505e0b798d76e5a9",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-07-17T17:59:45Z",
    "title_canon_sha256": "a367f5c2343f97f3c13c47a60050990e00590ca9195baa2203fb3817d2861285"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.07667",
    "kind": "arxiv",
    "version": 2
  }
}