Pith Number

pith:QZKKWJDA

pith:2011:QZKKWJDAIOUEBSBTSJILCFWSPT

not attested not anchored not stored refs pending

Cosmic Baldness

G.W. Gibbons, W. Boucher

arxiv:1109.3535 v1 · 2011-09-16 · astro-ph.CO · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QZKKWJDAIOUEBSBTSJILCFWSPT}

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	2026-05-18T04:12:55.992577Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8654ab246043a840c8339250b116d27cff9326c889de38f38a1b83914e65bc4d

Aliases

arxiv: 1109.3535 · arxiv_version: 1109.3535v1 · doi: 10.48550/arxiv.1109.3535 · pith_short_12: QZKKWJDAIOUE · pith_short_16: QZKKWJDAIOUEBSBT · pith_short_8: QZKKWJDA

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/QZKKWJDAIOUEBSBTSJILCFWSPT \
  | 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: 8654ab246043a840c8339250b116d27cff9326c889de38f38a1b83914e65bc4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0367ae018447a95cb19becb15ebcf70423c732998b72e997f8c229ad1240d31",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-16T07:04:59Z",
    "title_canon_sha256": "e198f7b1fc8e3bdcde70413c420bdec5f1e5be79f8b8ed5aa0de370e7cea0210"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3535",
    "kind": "arxiv",
    "version": 1
  }
}