Pith Number

pith:QB5XIKIG

pith:2001:QB5XIKIGXIQAODWDPK3JVFZWYZ

not attested not anchored not stored refs pending

Evidence for a non-zero Lambda and a low matter density from a combined analysis of the 2dF Galaxy Redshift Survey and Cosmic Microwave Background Anisotropies

Bruce A. Peterson, Carlos S. Frenk, Carlton Baugh, Carole Jackson, Chris Collins, Gavin Dalton, George Efstathiou, Ian Lewis, John A. Peacock, Joss Bland-Hawthorn, Karl Glazebrook, Keith Taylor, Matthew Colless, Ofer Lahav, Peder Norberg, Richard S. Ellis, Roberto De Propis, Russell Cannon, Shaun Cole, Simon P. Driver, Stephen Moody, Steve Maddox, Stuart Lumsden, Terry Bridges, Warrick Couch, Will J. Percival, Will Sutherland

arxiv:astro-ph/0109152 v1 · 2001-09-10 · 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{QB5XIKIGXIQAODWDPK3JVFZWYZ}

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	2026-05-18T04:27:05.390677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

807b742906ba20070ec37ab69a9736c677ae6ff214822ba072a1ab0c9b5b7fc7

Aliases

arxiv: astro-ph/0109152 · arxiv_version: astro-ph/0109152v1 · doi: 10.48550/arxiv.astro-ph/0109152 · pith_short_12: QB5XIKIGXIQA · pith_short_16: QB5XIKIGXIQAODWD · pith_short_8: QB5XIKIG

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/QB5XIKIGXIQAODWDPK3JVFZWYZ \
  | 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: 807b742906ba20070ec37ab69a9736c677ae6ff214822ba072a1ab0c9b5b7fc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0673d85f4cedefa6db290086dd31ba0c4e7db13a6b14eaba2a613b5a42bf26d1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-09-10T14:53:43Z",
    "title_canon_sha256": "178e356631608dec6496f157808723ab07046b49544d2badb2dc21cd45b783b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0109152",
    "kind": "arxiv",
    "version": 1
  }
}