Pith Number

pith:KREQKRMA

pith:1998:KREQKRMAXARUCZBVYYYJLJSL4F

not attested not anchored not stored refs pending

Observationally Determining the Properties of Dark Matter

Daniel J. Eisenstein, Martin White (U. of Illinois, Max Tegmark (IAS, Princeton), Urbana-Champaign), Wayne Hu

arxiv:astro-ph/9806362 v1 · 1998-06-27 · 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{KREQKRMAXARUCZBVYYYJLJSL4F}

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	2026-07-04T15:48:03.210586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5449054580b823416435c63095a64be17e4edb08883fa46b05ba590735955feb

Aliases

arxiv: astro-ph/9806362 · arxiv_version: astro-ph/9806362v1 · doi: 10.48550/arxiv.astro-ph/9806362 · pith_short_12: KREQKRMAXARU · pith_short_16: KREQKRMAXARUCZBV · pith_short_8: KREQKRMA

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/KREQKRMAXARUCZBVYYYJLJSL4F \
  | 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: 5449054580b823416435c63095a64be17e4edb08883fa46b05ba590735955feb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d94d09356b187fe09336f430cdce2ad5bb39b9ffe119b18e45312b5e863937f2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-06-27T00:11:25Z",
    "title_canon_sha256": "23e7c7221a7e40f3e56a8b15655210e16773e0a87c15e148a8d6b78f4092381a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9806362",
    "kind": "arxiv",
    "version": 1
  }
}