Pith Number

pith:UCDF7BLP

pith:2011:UCDF7BLP2OBSBIPDTTZEQPHDGZ

not attested not anchored not stored refs pending

The effect of different observational data on the constraints of cosmological parameters

Qing Gao, Yungui Gong, Zong-Hong Zhu

arxiv:1110.6535 v3 · 2011-10-29 · 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{UCDF7BLP2OBSBIPDTTZEQPHDGZ}

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	2026-05-18T03:28:54.150858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0865f856fd38320a1e39cf2483ce3367f42cdb221706295bb1392139db204c0

Aliases

arxiv: 1110.6535 · arxiv_version: 1110.6535v3 · doi: 10.48550/arxiv.1110.6535 · pith_short_12: UCDF7BLP2OBS · pith_short_16: UCDF7BLP2OBSBIPD · pith_short_8: UCDF7BLP

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/UCDF7BLP2OBSBIPDTTZEQPHDGZ \
  | 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: a0865f856fd38320a1e39cf2483ce3367f42cdb221706295bb1392139db204c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "577cfca11ee24a5f9911b163d892c2a7c210d2590eafe7b18f942a1f11764b43",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-10-29T15:05:00Z",
    "title_canon_sha256": "7eb1e11d1649b8f67c47fc18ce1e47978a1c0d66744f8db182d4222bc5445988"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.6535",
    "kind": "arxiv",
    "version": 3
  }
}