pith. sign in
Pith Number

pith:YQVCEV34

pith:2010:YQVCEV34AEOYZG3GTTQ6DAKIAB
not attested not anchored not stored refs pending

Drake Equation for the Multiverse: From the String Landscape to Complex Life

Marcelo Gleiser

arxiv:1002.1651 v1 · 2010-02-08 · hep-th · astro-ph.CO · physics.pop-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{YQVCEV34AEOYZG3GTTQ6DAKIAB}

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 2026-05-18T02:09:11.250091Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

c42a22577c011d8c9b669ce1e1814800692f1b2a6e51cc8fb77f5c3754fff926

Aliases

arxiv: 1002.1651 · arxiv_version: 1002.1651v1 · doi: 10.48550/arxiv.1002.1651 · pith_short_12: YQVCEV34AEOY · pith_short_16: YQVCEV34AEOYZG3G · pith_short_8: YQVCEV34
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/YQVCEV34AEOYZG3GTTQ6DAKIAB \
  | 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: c42a22577c011d8c9b669ce1e1814800692f1b2a6e51cc8fb77f5c3754fff926
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "f6144bb320a9c9e6207fc5aa6ca8fca422ec38ece1b1d94be495a77a11896fc2",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "physics.pop-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2010-02-08T16:56:52Z",
    "title_canon_sha256": "5c389bba71ac2306d77af380b15ec67980aa0c87521bc3ff11420a364b6996dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.1651",
    "kind": "arxiv",
    "version": 1
  }
}