Pith Number

pith:5UYA7J2A

pith:2026:5UYA7J2ABTPOKP3Y5ACQURVZZI

not attested not anchored not stored refs pending

The Information Content of Quasar Variability Light Curves: How Well Can we Infer Stochastic Model Parameters?

Brendon J. Brewer, Geraint F. Lewis, Xiang Yu (Ryan), Yuan Li (Cher)

arxiv:2606.01496 v1 · 2026-05-31 · astro-ph.GA · physics.data-an · stat.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5UYA7J2ABTPOKP3Y5ACQURVZZI}

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	2026-06-02T02:04:34.791741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed300fa7400cdee53f78e8050a46b9ca1b288abed3f30761dd110375cdfb259d

Aliases

arxiv: 2606.01496 · arxiv_version: 2606.01496v1 · doi: 10.48550/arxiv.2606.01496 · pith_short_12: 5UYA7J2ABTPO · pith_short_16: 5UYA7J2ABTPOKP3Y · pith_short_8: 5UYA7J2A

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/5UYA7J2ABTPOKP3Y5ACQURVZZI \
  | 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: ed300fa7400cdee53f78e8050a46b9ca1b288abed3f30761dd110375cdfb259d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fa7b00b0568beb692762fdf841f31e82e298c27c863f3e8ed50e533725092a9",
    "cross_cats_sorted": [
      "physics.data-an",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-05-31T23:28:30Z",
    "title_canon_sha256": "c70830717f15e31c54c005ee05c50781d927b927eb2d5a181acdd13c86fdb141"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.01496",
    "kind": "arxiv",
    "version": 1
  }
}