Pith Number

pith:R2PR2UNZ

pith:2008:R2PR2UNZAUO2B5Y3HIJXALIAUQ

not attested not anchored not stored refs pending

Search for Primordial Black Holes with SGARFACE

A. Falcone, A. W. Smith, D. Horan, F. Krennrich, J. Kildea, J. Toner, M. Schroedter, S. J. Fegan, S. LeBohec, T. C. Weekes

arxiv:0812.0546 v2 · 2008-12-02 · 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{R2PR2UNZAUO2B5Y3HIJXALIAUQ}

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	2026-07-04T15:47:22.139223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e9f1d51b9051da0f71b3a13702d00a41330b95aeff855b9a0c22d3a998e819f

Aliases

arxiv: 0812.0546 · arxiv_version: 0812.0546v2 · doi: 10.48550/arxiv.0812.0546 · pith_short_12: R2PR2UNZAUO2 · pith_short_16: R2PR2UNZAUO2B5Y3 · pith_short_8: R2PR2UNZ

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/R2PR2UNZAUO2B5Y3HIJXALIAUQ \
  | 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: 8e9f1d51b9051da0f71b3a13702d00a41330b95aeff855b9a0c22d3a998e819f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bea6dc83405082fa13a73e6924f030394071d6f473dde2b91ebcea398293cf33",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-12-02T17:15:19Z",
    "title_canon_sha256": "617162335435decca8e1fd18f40c174ae248d26cb6d56ef1d4c24472a70d575f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.0546",
    "kind": "arxiv",
    "version": 2
  }
}