Pith Number

pith:HQS5EKEN

pith:2008:HQS5EKEN7QUSHRWSJ3ZUU47SQO

not attested not anchored not stored refs pending

Improved Cosmological Parameter Constraints from CMB and H(z) Data

Daniel G. Figueroa, Licia Verde, Raul Jimenez

arxiv:0807.0039 v2 · 2008-06-30 · astro-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{HQS5EKEN7QUSHRWSJ3ZUU47SQO}

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	2026-05-18T02:35:15.697997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c25d2288dfc2923c6d24ef34a73f283a4013a9f92c30bea9d9aea637baaef3f

Aliases

arxiv: 0807.0039 · arxiv_version: 0807.0039v2 · doi: 10.48550/arxiv.0807.0039 · pith_short_12: HQS5EKEN7QUS · pith_short_16: HQS5EKEN7QUSHRWS · pith_short_8: HQS5EKEN

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/HQS5EKEN7QUSHRWSJ3ZUU47SQO \
  | 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: 3c25d2288dfc2923c6d24ef34a73f283a4013a9f92c30bea9d9aea637baaef3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "318f4e108c1663dbc1f523085ed9f481c48b24343eebfbb8cfd955662e24ec57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-06-30T23:26:01Z",
    "title_canon_sha256": "a5f7c485ee2390aecdd9663c771d205cf1b5409bf7585e16edbcecba684d9b67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.0039",
    "kind": "arxiv",
    "version": 2
  }
}