Pith Number

pith:YGBCKU5D

pith:2013:YGBCKU5DJPCYLW4CNFC3H7WVHU

not attested not anchored not stored refs pending

A Dark-Disk Universe

Andrey Katz, JiJi Fan, Lisa Randall, Matthew Reece

arxiv:1303.3271 v2 · 2013-03-13 · hep-ph · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YGBCKU5DJPCYLW4CNFC3H7WVHU}

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	2026-05-18T03:16:49.360780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1822553a34bc585db826945b3fed53d1a88f23b0813beb1cbfae110925d17b9

Aliases

arxiv: 1303.3271 · arxiv_version: 1303.3271v2 · doi: 10.48550/arxiv.1303.3271 · pith_short_12: YGBCKU5DJPCY · pith_short_16: YGBCKU5DJPCYLW4C · pith_short_8: YGBCKU5D

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/YGBCKU5DJPCYLW4CNFC3H7WVHU \
  | 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: c1822553a34bc585db826945b3fed53d1a88f23b0813beb1cbfae110925d17b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1fc8369f1717b8100f5ba83931da07d1d4ad1951db8a9aab9481cb8c4354f42",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2013-03-13T20:00:02Z",
    "title_canon_sha256": "7234b0648a7aeaa140abec0a96b58f29caa1bcb755c7680c8dd6ddd5636a6b79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3271",
    "kind": "arxiv",
    "version": 2
  }
}