Pith Number

pith:QUGK5T5B

pith:2010:QUGK5T5BYTNT5BQZ3SPVVWYAUJ

not attested not anchored not stored refs pending

Constraining the expansion rate of the Universe using low-redshift ellipticals as cosmic chronometers

Andrea Cimatti, Lucia Pozzetti, Michele Moresco, Raul Jimenez

arxiv:1010.0831 v2 · 2010-10-05 · 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{QUGK5T5BYTNT5BQZ3SPVVWYAUJ}

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

1 paper in Pith

A Spectrum of Cosmological Rips and Their Observational Signatures

Receipt and verification

First computed	2026-05-18T02:23:46.817688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

850caecfa1c4db3e8619dc9f5adb00a25804f5b48202307d8315976daab0061c

Aliases

arxiv: 1010.0831 · arxiv_version: 1010.0831v2 · doi: 10.48550/arxiv.1010.0831 · pith_short_12: QUGK5T5BYTNT · pith_short_16: QUGK5T5BYTNT5BQZ · pith_short_8: QUGK5T5B

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/QUGK5T5BYTNT5BQZ3SPVVWYAUJ \
  | 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: 850caecfa1c4db3e8619dc9f5adb00a25804f5b48202307d8315976daab0061c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3003054052da5cba674439589e8b45f08165a62655c0a63a9801b50f8f92fec2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-10-05T10:17:59Z",
    "title_canon_sha256": "600cf2bf4bf8090ba9ca053715fee31cb4e84acbead8a436a4c26754df4aa730"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.0831",
    "kind": "arxiv",
    "version": 2
  }
}