Pith Number

pith:JDYM7B4V

pith:1997:JDYM7B4VD5HR6ID4NMY7OJBDD3

not attested not anchored not stored refs pending

Constraining Omega with Cluster Evolution

Neta A. Bahcall, Renyue Cen (Princeton University Observatory), Xiaohui Fan

arxiv:astro-ph/9706018 v1 · 1997-06-03 · 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{JDYM7B4VD5HR6ID4NMY7OJBDD3}

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	2026-07-04T16:03:02.441492Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48f0cf87951f4f1f207c6b31f724231ef25416ebfe8f674f3d7fd4645ef9dc6e

Aliases

arxiv: astro-ph/9706018 · arxiv_version: astro-ph/9706018v1 · doi: 10.48550/arxiv.astro-ph/9706018 · pith_short_12: JDYM7B4VD5HR · pith_short_16: JDYM7B4VD5HR6ID4 · pith_short_8: JDYM7B4V

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/JDYM7B4VD5HR6ID4NMY7OJBDD3 \
  | 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: 48f0cf87951f4f1f207c6b31f724231ef25416ebfe8f674f3d7fd4645ef9dc6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "892171b844c75f80b320cd375d79a814e8cedb486e9e55a948225f220570f14e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-06-03T02:55:24Z",
    "title_canon_sha256": "eb46f3a7c78f6f0315477efdfdc894bb339396309d79548ff54f1a252dab0dde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9706018",
    "kind": "arxiv",
    "version": 1
  }
}