Pith Number

pith:QPJQAV6T

pith:2010:QPJQAV6TYTBKJ5235RUJILCITS

not attested not anchored not stored refs pending

Are there Boltzmann brains in the vacuum

Ken D. Olum, Matthew Davenport

arxiv:1008.0808 v1 · 2010-08-04 · 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{QPJQAV6TYTBKJ5235RUJILCITS}

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	2026-05-18T04:42:35.608029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83d30057d3c4c2a4f75bec68942c489c93b38f56a8fa50ae001e6ce6f070a173

Aliases

arxiv: 1008.0808 · arxiv_version: 1008.0808v1 · doi: 10.48550/arxiv.1008.0808 · pith_short_12: QPJQAV6TYTBK · pith_short_16: QPJQAV6TYTBKJ523 · pith_short_8: QPJQAV6T

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/QPJQAV6TYTBKJ5235RUJILCITS \
  | 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: 83d30057d3c4c2a4f75bec68942c489c93b38f56a8fa50ae001e6ce6f070a173

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22c5f1eca58cda4aa6ccae547b6c983f59cc72a15aac75c80e76290a3192dc4c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2010-08-04T16:03:25Z",
    "title_canon_sha256": "31150c4a9fa7a86f71a118a08d8333a83fe0433d093e19184d12a511beab29f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.0808",
    "kind": "arxiv",
    "version": 1
  }
}