Pith Number

pith:6QSGFGFF

pith:1996:6QSGFGFFNKZMZAWSHFKR4FU2IH

not attested not anchored not stored refs pending

The QSO variability-luminosity-redshift relation

2, 3), Brazil (2) Royal Greenwich Observatory, Cambridge, Florianopolis, I. Aretxaga (2), R. Cid Fernandes (1, R. Terlevich (3)((1) Depto. de Fisica - UFSC, UK), UK (3) Institute of Astronomy

arxiv:astro-ph/9608057 v1 · 1996-08-11 · 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{6QSGFGFFNKZMZAWSHFKR4FU2IH}

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	2026-05-18T01:40:19.628618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4246298a56ab2cc82d239551e169a41e6c9bda59abe7142a9d57d35d795e0a2

Aliases

arxiv: astro-ph/9608057 · arxiv_version: astro-ph/9608057v1 · doi: 10.48550/arxiv.astro-ph/9608057 · pith_short_12: 6QSGFGFFNKZM · pith_short_16: 6QSGFGFFNKZMZAWS · pith_short_8: 6QSGFGFF

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/6QSGFGFFNKZMZAWSHFKR4FU2IH \
  | 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: f4246298a56ab2cc82d239551e169a41e6c9bda59abe7142a9d57d35d795e0a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86d79ca8e996573318b259845dbd463f4cbdddfa3e48659ca7d20a673d1ab661",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-08-11T21:42:44Z",
    "title_canon_sha256": "90f3b5c1203892c3f94b6aadc442325939ef8e80926efd4da27f29b6307c7fb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9608057",
    "kind": "arxiv",
    "version": 1
  }
}