Pith Number

pith:R7FISLOO

pith:1999:R7FISLOOYCGJAHE6VRNUDYFZSZ

not attested not anchored not stored refs pending

X-ray Mass Estimates at $z\sim0.3$ for the CNOC Cluster Sample

Aaron D. Lewis, E. Ellingson, R. G. Carlberg, Simon L. Morris

arxiv:astro-ph/9901062 v1 · 1999-01-06 · 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{R7FISLOOYCGJAHE6VRNUDYFZSZ}

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	2026-07-04T16:10:35.633939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fca892dcec08c901c9eac5b41e0b996765e0676ba7ddfa984aec1f2204bd861

Aliases

arxiv: astro-ph/9901062 · arxiv_version: astro-ph/9901062v1 · doi: 10.48550/arxiv.astro-ph/9901062 · pith_short_12: R7FISLOOYCGJ · pith_short_16: R7FISLOOYCGJAHE6 · pith_short_8: R7FISLOO

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/R7FISLOOYCGJAHE6VRNUDYFZSZ \
  | 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: 8fca892dcec08c901c9eac5b41e0b996765e0676ba7ddfa984aec1f2204bd861

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c36adcda241956c872271965afa00b8434aa9aba8f67813b4219d857f60d544",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-01-06T22:20:47Z",
    "title_canon_sha256": "8a89319b4d852068030b27c5df4814525654098ef327683ad1bea060e9c8480e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9901062",
    "kind": "arxiv",
    "version": 1
  }
}