Pith Number

pith:7ZSJ24E5

pith:2001:7ZSJ24E5TF4OV3UR5B3LDIZWHL

not attested not anchored not stored refs pending

The 2dF Galaxy Redshift Survey: The bias of galaxies and the density of the Universe

Alan F. Heavens, B.A. Peterson, C. Collins, C. Jackson, C.M. Baugh, C.S. Frenk, D.S.Madgwick, G. Dalton, G. Efstathiou, I. Lewis, J.A. Peacock, J. Bland-Hawthorn, K. Glazebrook, K. Taylor (the 2dF team), Licia Verde (Rutgers, M. Colless, O. Lahav, P. Norberg, Princeton), R. Cannon, R. De Propris, R.S. Ellis, Sabino Matarrese, S. Cole, S. Lumsden, S. Maddox, S.P. Driver, T. Bridges, W. Couch, Will J. Percival, W. Sutherland

arxiv:astro-ph/0112161 v3 · 2001-12-06 · 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{7ZSJ24E5TF4OV3UR5B3LDIZWHL}

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	2026-07-04T15:17:58.808367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe649d709d9978eaee91e876b1a3363ad542f7160d5bc0c1a1c57873d0c089da

Aliases

arxiv: astro-ph/0112161 · arxiv_version: astro-ph/0112161v3 · doi: 10.48550/arxiv.astro-ph/0112161 · pith_short_12: 7ZSJ24E5TF4O · pith_short_16: 7ZSJ24E5TF4OV3UR · pith_short_8: 7ZSJ24E5

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/7ZSJ24E5TF4OV3UR5B3LDIZWHL \
  | 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: fe649d709d9978eaee91e876b1a3363ad542f7160d5bc0c1a1c57873d0c089da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef68c9d6321d3b978d73e2d673ab8a00644221b82a6fd8eff0ac54fadf814eb0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-12-06T21:06:11Z",
    "title_canon_sha256": "877731d67bab32ec3483cf2f16bd767511e30400bd4f6e83e717cd1850ce004a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0112161",
    "kind": "arxiv",
    "version": 3
  }
}