Pith Number

pith:PFK6JBVU

pith:2013:PFK6JBVUOVHIFM2SGOXGGL6PLT

not attested not anchored not stored refs pending

Implications of the Reduction Principle for Cosmological Natural Selection

Lee Altenberg

arxiv:1302.1293 v2 · 2013-02-06 · gr-qc · math.PR · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PFK6JBVUOVHIFM2SGOXGGL6PLT}

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	2026-05-18T03:33:11.229305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7955e486b4754e82b35233ae632fcf5cc1a513dbb3f9b71b7b9edc0057a54305

Aliases

arxiv: 1302.1293 · arxiv_version: 1302.1293v2 · doi: 10.48550/arxiv.1302.1293 · pith_short_12: PFK6JBVUOVHI · pith_short_16: PFK6JBVUOVHIFM2S · pith_short_8: PFK6JBVU

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/PFK6JBVUOVHIFM2SGOXGGL6PLT \
  | 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: 7955e486b4754e82b35233ae632fcf5cc1a513dbb3f9b71b7b9edc0057a54305

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c15fdcb006bcbb76c4a07a7100a2b25325d8e53b50c8111f69794d5b64a0bce",
    "cross_cats_sorted": [
      "math.PR",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-02-06T09:18:28Z",
    "title_canon_sha256": "a160f8cbb86a89c1c0af720626b3645d64a158e6622a43c61b63a456577e4e55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.1293",
    "kind": "arxiv",
    "version": 2
  }
}