Pith Number

pith:DPW7B2PD

pith:1999:DPW7B2PD6K663JLZUHKKII4SY4

not attested not anchored not stored refs pending

On the Reliability of Cross Correlation Function Lag Determinations in Active Galactic Nuclei

W.F. Welsh

arxiv:astro-ph/9911112 v1 · 1999-11-07 · 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{DPW7B2PD6K663JLZUHKKII4SY4}

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.

Cited by

1 paper in Pith

Constraining Orbital Eccentricity of a Supermassive Black Hole Binary Candidate PKS 2131-0211

Receipt and verification

First computed	2026-07-04T16:11:52.920064Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bedf0e9e3f2bdeda579a1d4a42392c706a3670994f2d526c0c3bc873aa1cbc7

Aliases

arxiv: astro-ph/9911112 · arxiv_version: astro-ph/9911112v1 · doi: 10.48550/arxiv.astro-ph/9911112 · pith_short_12: DPW7B2PD6K66 · pith_short_16: DPW7B2PD6K663JLZ · pith_short_8: DPW7B2PD

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/DPW7B2PD6K663JLZUHKKII4SY4 \
  | 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: 1bedf0e9e3f2bdeda579a1d4a42392c706a3670994f2d526c0c3bc873aa1cbc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f6389a61e3cf992e29e3093e41e3d6eb7fe6ab707548a751ae635116d5f0e7b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-07T21:50:33Z",
    "title_canon_sha256": "0d81233efd273ae876835361a7456e4efacf55570079501b36e462dc06f04b9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911112",
    "kind": "arxiv",
    "version": 1
  }
}