Pith Number

pith:QRL4MPKV

pith:2000:QRL4MPKVJDTYVFWJV7TIMQ2WTE

not attested not anchored not stored refs pending

The 2dF Galaxy Redshift Survey: Near Infrared Galaxy Luminosity Functions

Bruce Peterson, Carlos Frenk, Carlton Baugh, Carole Jackson, Chris Collins, Darren Madgwick, Gavin Dalton, George Efstathiou, Ian Lewis, John Peacock, Joss Bland-Hawthorn, Karl Glazebrook, Keith Taylor (the 2dFGRS team), Matthew Colless, 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, Will Sutherland

arxiv:astro-ph/0012429 v4 · 2000-12-20 · 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{QRL4MPKVJDTYVFWJV7TIMQ2WTE}

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	2026-05-18T04:27:05.496575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8457c63d5548e78a96c9afe6864356990869fca64cc56fcc424b43506b4b3385

Aliases

arxiv: astro-ph/0012429 · arxiv_version: astro-ph/0012429v4 · doi: 10.48550/arxiv.astro-ph/0012429 · pith_short_12: QRL4MPKVJDTY · pith_short_16: QRL4MPKVJDTYVFWJ · pith_short_8: QRL4MPKV

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/QRL4MPKVJDTYVFWJV7TIMQ2WTE \
  | 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: 8457c63d5548e78a96c9afe6864356990869fca64cc56fcc424b43506b4b3385

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03921cc94794f2089b46c9816337bdddc3ae28a16fbcb7631da37149e05995bc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-12-20T12:59:43Z",
    "title_canon_sha256": "89758a7d60b5e8b5cc34a9ba317f638253d4c308fb079296947862144bf6755c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0012429",
    "kind": "arxiv",
    "version": 4
  }
}