Pith Number

pith:SO6NAU4O

pith:1998:SO6NAU4OUHCW36QNIYAD7QSXRF

not attested not anchored not stored refs pending

Observed Redshift Distributions and Cosmological Evolution of Radio Sources

J. Machalski, M. Jamrozy (Jagiellonian Uniwersity)

arxiv:astro-ph/9803034 v1 · 1998-03-04 · 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{SO6NAU4OUHCW36QNIYAD7QSXRF}

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	2026-05-18T01:21:56.479974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93bcd0538ea1c56dfa0d46003fc25789631a937f67361b3c96ba1c6b0534b221

Aliases

arxiv: astro-ph/9803034 · arxiv_version: astro-ph/9803034v1 · doi: 10.48550/arxiv.astro-ph/9803034 · pith_short_12: SO6NAU4OUHCW · pith_short_16: SO6NAU4OUHCW36QN · pith_short_8: SO6NAU4O

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/SO6NAU4OUHCW36QNIYAD7QSXRF \
  | 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: 93bcd0538ea1c56dfa0d46003fc25789631a937f67361b3c96ba1c6b0534b221

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1d3aeebcabcf7602a233926e20cecfebd471f357e27bff3b6e9e04c9dda37e9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-03-04T10:31:51Z",
    "title_canon_sha256": "cdc4fa28ee8b84a3904ef11cb6dada2fed0dee64d71247e89dc3b3d0667e30db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9803034",
    "kind": "arxiv",
    "version": 1
  }
}