Pith Number

pith:YK3PYEWJ

pith:1995:YK3PYEWJ2ZGHLGQ7G5K7CITKIN

not attested not anchored not stored refs pending

Large-scale Structure and the Determination of $H_{\rm o}$ from Gravitational Lens Time Delays

Diego D. Harari, Gabriela C. Surpi, Joshua A. Frieman

arxiv:astro-ph/9502008 v1 · 1995-02-02 · astro-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YK3PYEWJ2ZGHLGQ7G5K7CITKIN}

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	2026-05-18T01:07:42.450329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2b6fc12c9d64c759a1f3755f1226a4342a4c479e0c7b9e21fceee9373104d7a

Aliases

arxiv: astro-ph/9502008 · arxiv_version: astro-ph/9502008v1 · doi: 10.48550/arxiv.astro-ph/9502008 · pith_short_12: YK3PYEWJ2ZGH · pith_short_16: YK3PYEWJ2ZGHLGQ7 · pith_short_8: YK3PYEWJ

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/YK3PYEWJ2ZGHLGQ7G5K7CITKIN \
  | 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: c2b6fc12c9d64c759a1f3755f1226a4342a4c479e0c7b9e21fceee9373104d7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ae44ba8c13c8672100b5a3c3cd6150ff750b6421404207a296b094dcc9afc9e",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-02-02T15:55:04Z",
    "title_canon_sha256": "46ef3053c38f839ef2ca97531d72f44705e678216a2e33476affcb3ccd0abf41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9502008",
    "kind": "arxiv",
    "version": 1
  }
}