Pith Number

pith:TCXJTTG2

pith:2009:TCXJTTG2WJD4W6AUOOIL7OIDRY

not attested not anchored not stored refs pending

Cosmic Chronometers: Constraining the Equation of State of Dark Energy. II. A Spectroscopic Catalog of Red Galaxies in Galaxy Clusters

Daniel Stern, Licia Verde, Marc Kamionkowski, Raul Jimenez, S. Adam Stanford

arxiv:0907.3152 v1 · 2009-07-18 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TCXJTTG2WJD4W6AUOOIL7OIDRY}

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	2026-05-18T02:12:56.028816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98ae99ccdab247cb78147390bfb9038e33d69b8ef7a2c8de810f5add281824ae

Aliases

arxiv: 0907.3152 · arxiv_version: 0907.3152v1 · doi: 10.48550/arxiv.0907.3152 · pith_short_12: TCXJTTG2WJD4 · pith_short_16: TCXJTTG2WJD4W6AU · pith_short_8: TCXJTTG2

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/TCXJTTG2WJD4W6AUOOIL7OIDRY \
  | 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: 98ae99ccdab247cb78147390bfb9038e33d69b8ef7a2c8de810f5add281824ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4158bc744e93aac2ad830b7dc72d23f0bf24a0afe58f30e37ef96dc3161c28bd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-18T15:34:33Z",
    "title_canon_sha256": "90cab27e056a16f5599943bdb16312777e65703be14adaa46c64c8d6461b87d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3152",
    "kind": "arxiv",
    "version": 1
  }
}