Pith Number

pith:NRJEQRW7

pith:1995:NRJEQRW7GDOYXHR5MA4TVPFPNK

not attested not anchored not stored refs pending

Pure Luminosity Evolution Hypothesis for QSOs: From Luminosity Functions to Synthetic Catalogues

G. Mathez, H. Bonnet, L. van Waerbeke, M. Lachieze-Rey, Y. Mellier

arxiv:astro-ph/9508027 v1 · 1995-08-07 · 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{NRJEQRW7GDOYXHR5MA4TVPFPNK}

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	2026-07-04T14:14:34.446806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c524846df30dd8b9e3d60393abcaf6a9563f0b7577fdbc5afa04fe904fd1754

Aliases

arxiv: astro-ph/9508027 · arxiv_version: astro-ph/9508027v1 · doi: 10.48550/arxiv.astro-ph/9508027 · pith_short_12: NRJEQRW7GDOY · pith_short_16: NRJEQRW7GDOYXHR5 · pith_short_8: NRJEQRW7

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/NRJEQRW7GDOYXHR5MA4TVPFPNK \
  | 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: 6c524846df30dd8b9e3d60393abcaf6a9563f0b7577fdbc5afa04fe904fd1754

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cd36160c1ba1133a5ce8166851621f62d1c278d0c9f9249f35a37defb349b29",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-08-07T13:28:17Z",
    "title_canon_sha256": "86095289bd3a47748bf19381526fba327056a6d7327592fe871ca2eb3a0a37e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9508027",
    "kind": "arxiv",
    "version": 1
  }
}