Pith Number

pith:2D73IY6G

pith:2004:2D73IY6GYZU6REHQTLNFCVFPVC

not attested not anchored not stored refs pending

The 2dF Galaxy Redshift Survey: The clustering of galaxy groups

B. A. Peterson, C. Collins, C. Jackson, C. M. Baugh, C. S. Frenk, D. J. Croton, D. Madgwick, G. Dalton, G. Efstathiou, I. K. Baldry, I. Lewis, J. A. Peacock, J. Bland-Hawthorn, K. Glazebrook, K. Taylor. (The 2dFGRS team), M. Colless, Nelson D. Padilla, O. Lahav, P. Norberg, R. Cannon, R. De Propris, R. S. Ellis, S. Cole, S. Lumsden, S. Maddox, S. P. Driver, T. Bridges, V. R. Eke, W. Couch, W. Sutherland

arxiv:astro-ph/0402577 v2 · 2004-02-25 · 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{2D73IY6GYZU6REHQTLNFCVFPVC}

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	2026-05-18T04:27:04.602916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0ffb463c6c669e890f09ada5154afa8adb81b8a4f17db93089d544fc28f56e5

Aliases

arxiv: astro-ph/0402577 · arxiv_version: astro-ph/0402577v2 · doi: 10.48550/arxiv.astro-ph/0402577 · pith_short_12: 2D73IY6GYZU6 · pith_short_16: 2D73IY6GYZU6REHQ · pith_short_8: 2D73IY6G

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/2D73IY6GYZU6REHQTLNFCVFPVC \
  | 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: d0ffb463c6c669e890f09ada5154afa8adb81b8a4f17db93089d544fc28f56e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04a4c98c7bdbfc47f27dab72d2b46a3c07a3e7ff29e9d6c54cb07c98b95069dc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-25T18:32:51Z",
    "title_canon_sha256": "91afd2ed4bd8ea71de9deb015cb86288109c86b87913262927aa6180243ddb1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402577",
    "kind": "arxiv",
    "version": 2
  }
}