Pith Number

pith:DGMGNULC

pith:2001:DGMGNULCCFKOEPW5RGDHARAYIM

not attested not anchored not stored refs pending

The 2dF Galaxy Redshift Survey: A targeted study of catalogued clusters of galaxies

Bruce Peterson, Carlos Frenk, Carlton Baugh, Carole Jackson, Chris Collins, Darren Madgwick, Gavin Dalton, George Efstathiou, Ian Lewis, John Peacock, Joss-Bland-Hawthorn, Kark Glazebrook, Kathryn Deeley, Keith Taylor, Matthew Colless, Nicholas Cross, Ofer Lahav, Peder Norberg, Richard Ellis, Roberto De Propris, Russell Cannon, Shaun Cole, Simon Driver, Stephen Moody, Steve Maddox, Stuart Lumsden, Terry Bridges, Warrick Couch, Will Percival, Will Sutherland

arxiv:astro-ph/0109167 v2 · 2001-09-11 · 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{DGMGNULCCFKOEPW5RGDHARAYIM}

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	2026-05-18T04:27:05.380120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

199866d1621154e23edd89867044184308dcbfc4c8d1d7d379a536f020cab9dd

Aliases

arxiv: astro-ph/0109167 · arxiv_version: astro-ph/0109167v2 · doi: 10.48550/arxiv.astro-ph/0109167 · pith_short_12: DGMGNULCCFKO · pith_short_16: DGMGNULCCFKOEPW5 · pith_short_8: DGMGNULC

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/DGMGNULCCFKOEPW5RGDHARAYIM \
  | 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: 199866d1621154e23edd89867044184308dcbfc4c8d1d7d379a536f020cab9dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fde0593f7dedc522160134b6c1b860b6473a671a7609eb9b53681c6cd95805c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-09-11T01:49:31Z",
    "title_canon_sha256": "edc1362b734160ad33b9c0bf8f93375923f07c50f434b449f626960b9dbf70a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0109167",
    "kind": "arxiv",
    "version": 2
  }
}