Pith Number

pith:CZKYVVCI

pith:2007:CZKYVVCIPH6EIQA2CBVR74OQNI

not attested not anchored not stored refs pending

The time evolution of cosmological redshift as a test of dark energy

A. Balbi, C. Quercellini

arxiv:0704.2350 v3 · 2007-04-18 · 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{CZKYVVCIPH6EIQA2CBVR74OQNI}

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.

Cited by

5 papers in Pith

Mapping the Universe as a Bianchi I cosmology with Gaia data

Direct detection of the cosmic expansion: the redshift drift and the flux drift

Expected redshift drift for tilted observers

Mapping the redshift drift at various redshifts through cosmography

Nonlinear Relativistic Effects on Cosmological Redshift Drift

Receipt and verification

First computed	2026-07-04T17:03:19.939187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16558ad44879fc44401a106b1ff1d06a12d71540d1631487e68e4c3733a67deb

Aliases

arxiv: 0704.2350 · arxiv_version: 0704.2350v3 · doi: 10.48550/arxiv.0704.2350 · pith_short_12: CZKYVVCIPH6E · pith_short_16: CZKYVVCIPH6EIQA2 · pith_short_8: CZKYVVCI

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/CZKYVVCIPH6EIQA2CBVR74OQNI \
  | 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: 16558ad44879fc44401a106b1ff1d06a12d71540d1631487e68e4c3733a67deb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afe2fb74ccd391d5ba8b871e916eadd29e0314cc84183941b476a54432891575",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-04-18T14:16:33Z",
    "title_canon_sha256": "72438fd65ece88cf991861ad40e912b9f64da8668675a18ac03bd6ba7a081ca5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.2350",
    "kind": "arxiv",
    "version": 3
  }
}