Pith Number

pith:75BUCQV2

pith:2000:75BUCQV24PN25ZALXW64RUJH4B

not attested not anchored not stored refs pending

The Stanford Cluster Search for Distant Galaxy Clusters

Benjamin F. Mathiesen, Gary J. Hill, Jeffrey A. Willick (deceased), Keith L. Thompson, Robert A. Knop, Saul Perlmutter

arxiv:astro-ph/0012119 v1 · 2000-12-05 · 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{75BUCQV24PN25ZALXW64RUJH4B}

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	2026-07-04T14:10:56.016180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff434142bae3dbaee40bbdbdc8d127e045c5e7390e1693e045d1251bd654b449

Aliases

arxiv: astro-ph/0012119 · arxiv_version: astro-ph/0012119v1 · doi: 10.48550/arxiv.astro-ph/0012119 · pith_short_12: 75BUCQV24PN2 · pith_short_16: 75BUCQV24PN25ZAL · pith_short_8: 75BUCQV2

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/75BUCQV24PN25ZALXW64RUJH4B \
  | 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: ff434142bae3dbaee40bbdbdc8d127e045c5e7390e1693e045d1251bd654b449

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b752597a2b4010b51218cd4afde8f07af358a8c10ae98e6bd293ba941158925b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-12-05T22:46:08Z",
    "title_canon_sha256": "17a05070a34e92d67cfbea101e9c800f140ca068e6f14addce70196cc6dae33e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0012119",
    "kind": "arxiv",
    "version": 1
  }
}