Pith Number

pith:TXWUFBCZ

pith:1995:TXWUFBCZLEZ6QF5RJ72C4QNZT5

not attested not anchored not stored refs pending

Measuring Hubble's Constant in our Inhomogeneous Universe

Kinsgton, Lawrence M. Widrow, L. Jonathan Dursi (Queen's University, Ontario), Xiangdong Shi

arxiv:astro-ph/9506120 v1 · 1995-06-25 · 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{TXWUFBCZLEZ6QF5RJ72C4QNZT5}

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	2026-05-18T01:40:23.096630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ded4284595933e817b14ff42e41b99f6e6bc86c46ab7905d056de7403ad57bb

Aliases

arxiv: astro-ph/9506120 · arxiv_version: astro-ph/9506120v1 · doi: 10.48550/arxiv.astro-ph/9506120 · pith_short_12: TXWUFBCZLEZ6 · pith_short_16: TXWUFBCZLEZ6QF5R · pith_short_8: TXWUFBCZ

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/TXWUFBCZLEZ6QF5RJ72C4QNZT5 \
  | 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: 9ded4284595933e817b14ff42e41b99f6e6bc86c46ab7905d056de7403ad57bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "176bf53ea7269ba1a85568d87503ae41e1b4a483c5c7502730a25c30126321e0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-06-25T14:08:08Z",
    "title_canon_sha256": "0ba4ac919d558383fd19656c6ceea926d9b05347b2d55e18700b8b3bce42e89d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9506120",
    "kind": "arxiv",
    "version": 1
  }
}