Pith Number

pith:GOLW4N64

pith:1997:GOLW4N64UYAGLUBYY4JIHCORSF

not attested not anchored not stored refs pending

Butcher & Oemler Cluster A2111: A Head-on Merger at z = 0.23

Melville Ulmer, Q. Daniel Wang, Russell J. Lavery

arxiv:astro-ph/9702035 v1 · 1997-02-04 · 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{GOLW4N64UYAGLUBYY4JIHCORSF}

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	2026-05-18T01:40:18.226078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33976e37dca60065d038c7128389d19142fa84f2c1153883b0dbd1d46dcd362a

Aliases

arxiv: astro-ph/9702035 · arxiv_version: astro-ph/9702035v1 · doi: 10.48550/arxiv.astro-ph/9702035 · pith_short_12: GOLW4N64UYAG · pith_short_16: GOLW4N64UYAGLUBY · pith_short_8: GOLW4N64

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/GOLW4N64UYAGLUBYY4JIHCORSF \
  | 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: 33976e37dca60065d038c7128389d19142fa84f2c1153883b0dbd1d46dcd362a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78097f6cc6fc145cf0c2b4127b68ca586ebc908603227742174501cc329d1a60",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-02-04T00:25:43Z",
    "title_canon_sha256": "9b1a5c9efaeb4a83c424070306df64153f85846faf88552528b78d191b2bf44c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9702035",
    "kind": "arxiv",
    "version": 1
  }
}