Pith Number

pith:QDXBAIPV

pith:2004:QDXBAIPVHYBBLA7MJKQUXHX6KO

not attested not anchored not stored refs pending

Star-forming Galaxies in the 'Redshift Desert'

A. Shapley (UC Berkeley), Cambridge), C. Steidel (Caltech), D. Erb, K. Adelberger (OCIW), M. Hunt (Caltech), M. Pettini (IoA, N. Reddy

arxiv:astro-ph/0401061 v1 · 2004-01-06 · 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{QDXBAIPVHYBBLA7MJKQUXHX6KO}

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	2026-07-04T16:42:46.141242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80ee1021f53e021583ec4aa14b9efe5387655e5c2a3d2d800edbbf413a125531

Aliases

arxiv: astro-ph/0401061 · arxiv_version: astro-ph/0401061v1 · doi: 10.48550/arxiv.astro-ph/0401061 · pith_short_12: QDXBAIPVHYBB · pith_short_16: QDXBAIPVHYBBLA7M · pith_short_8: QDXBAIPV

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/QDXBAIPVHYBBLA7MJKQUXHX6KO \
  | 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: 80ee1021f53e021583ec4aa14b9efe5387655e5c2a3d2d800edbbf413a125531

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd722222f6b9984cd62afe4cd575b0cf5e37295a2985b99421b066a59c69ff95",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-06T21:00:31Z",
    "title_canon_sha256": "5b064ab8d82cb15a6f30259701f19012e2d8d61595a8ea97185f4778066975ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401061",
    "kind": "arxiv",
    "version": 1
  }
}