Pith Number

pith:GHLLIJMQ

pith:2004:GHLLIJMQITYSGYILBOZWPZCGRC

not attested not anchored not stored refs pending

Substructure Analysis of Selected Low Richness 2dFGRS Clusters of Galaxies

Bruce Peterson, Carlos Frenk, Carlton Baugh, Carole Jackson, Chris Collins, Darren Madgwick, David S. Davis, Edward Hawkins, Gavin Dalton, George Efstathiou, Ian Lewis, Ivan Baldry, John A. Peacock, Joss Bland-Hawthorn, Karl Glazebrook, Keith Taylor, Matthew Colless, Michael M. Vick, Nicholas Cross, Ofer Lahav, Peder Norberg, Richard Ellis, Roberto De Propris, Russell Cannon, Shaun Cole, Simon Driver, Steve Maddox, Stuart Lumsden, Terry Bridges, Warrick Couch, William S. Burgett, Will Percival, Will Sutherland

arxiv:astro-ph/0405021 v1 · 2004-05-03 · 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{GHLLIJMQITYSGYILBOZWPZCGRC}

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	2026-05-18T04:27:04.510676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31d6b4259044f123610b0bb367e446888a320502402b6b1d040e442e1074fb82

Aliases

arxiv: astro-ph/0405021 · arxiv_version: astro-ph/0405021v1 · doi: 10.48550/arxiv.astro-ph/0405021 · pith_short_12: GHLLIJMQITYS · pith_short_16: GHLLIJMQITYSGYIL · pith_short_8: GHLLIJMQ

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/GHLLIJMQITYSGYILBOZWPZCGRC \
  | 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: 31d6b4259044f123610b0bb367e446888a320502402b6b1d040e442e1074fb82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2803915b274cfcac4c4d45a3e742dfca258d7aab95ce053687611df4c00b0ad0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-05-03T12:54:26Z",
    "title_canon_sha256": "3309f0a884fe720d79ad0daf0272815f6ed47ec3cd15dd5d4b33ff17d840be4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0405021",
    "kind": "arxiv",
    "version": 1
  }
}