Pith Number

pith:FP67RPOO

pith:1998:FP67RPOOHP4YE4KCJ3YZF3BZJ3

not attested not anchored not stored refs pending

Possible Indications of a Clumpy Dark Matter Halo

J. Edsjo (UC Berkeley), L. Bergstrom (Stockholm University), P. Ullio (Stockholm University)

arxiv:astro-ph/9804050 v1 · 1998-04-05 · astro-ph · hep-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{FP67RPOOHP4YE4KCJ3YZF3BZJ3}

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	2026-07-04T16:06:17.363282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bfdf8bdce3bf98271424ef192ec394edfa7e89315ae0f36361f0d9b7c4d0be3

Aliases

arxiv: astro-ph/9804050 · arxiv_version: astro-ph/9804050v1 · doi: 10.48550/arxiv.astro-ph/9804050 · pith_short_12: FP67RPOOHP4Y · pith_short_16: FP67RPOOHP4YE4KC · pith_short_8: FP67RPOO

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/FP67RPOOHP4YE4KCJ3YZF3BZJ3 \
  | 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: 2bfdf8bdce3bf98271424ef192ec394edfa7e89315ae0f36361f0d9b7c4d0be3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b452683d01625ff093481c8c9bde7a4f804ac85ac1b39350bf904cf5f48a5899",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-04-05T17:39:18Z",
    "title_canon_sha256": "3d1b74a4286c6969639041448468af42c118208b47db841ed4ad4472017d5f4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9804050",
    "kind": "arxiv",
    "version": 1
  }
}