Pith Number

pith:YBDXE5EF

pith:2010:YBDXE5EFLSFW53CCU4VEJPXBWU

not attested not anchored not stored refs pending

Time dependent couplings in the dark sector: from background evolution to nonlinear structure formation

Garching), Marco Baldi (Excellence Cluster Universe

arxiv:1005.2188 v2 · 2010-05-12 · astro-ph.CO · gr-qc · 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{YBDXE5EFLSFW53CCU4VEJPXBWU}

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	2026-05-18T02:07:33.555882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0477274855c8b6eec42a72a44bee1b51a24fb401f3df1096a02cb6281fce27f

Aliases

arxiv: 1005.2188 · arxiv_version: 1005.2188v2 · doi: 10.48550/arxiv.1005.2188 · pith_short_12: YBDXE5EFLSFW · pith_short_16: YBDXE5EFLSFW53CC · pith_short_8: YBDXE5EF

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/YBDXE5EFLSFW53CCU4VEJPXBWU \
  | 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: c0477274855c8b6eec42a72a44bee1b51a24fb401f3df1096a02cb6281fce27f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb907c27580f749429f0e3336569aa48cbb0522817ef0c256e3be13429618b67",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-05-12T20:00:06Z",
    "title_canon_sha256": "12d8bf1607ca9c215a08ebcead812a2e7aae75f99ac4e8e4e47028a216b0e1f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.2188",
    "kind": "arxiv",
    "version": 2
  }
}