Pith Number

pith:SLOA3RA3

pith:2008:SLOA3RA3A4VHWZ3R4U7EXLOODB

not attested not anchored not stored refs pending

What is the entropy of the universe?

David Reeb, Paul Frampton, Stephen D.H. Hsu, Thomas W. Kephart

arxiv:0801.1847 v3 · 2008-01-11 · hep-th · astro-ph · gr-qc · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SLOA3RA3A4VHWZ3R4U7EXLOODB}

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.

Cited by

1 paper in Pith

Elementary considerations on possible entropy-driven cosmological evolutions

Receipt and verification

First computed	2026-07-04T15:49:44.701040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92dc0dc41b072a7b6771e53e4badce1847b24616fb7915b23b7c1b84c97e347a

Aliases

arxiv: 0801.1847 · arxiv_version: 0801.1847v3 · doi: 10.48550/arxiv.0801.1847 · pith_short_12: SLOA3RA3A4VH · pith_short_16: SLOA3RA3A4VHWZ3R · pith_short_8: SLOA3RA3

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/SLOA3RA3A4VHWZ3R4U7EXLOODB \
  | 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: 92dc0dc41b072a7b6771e53e4badce1847b24616fb7915b23b7c1b84c97e347a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb88035172e06174567c28674510b338f59ff757e465ed56fe67533d45c2352a",
    "cross_cats_sorted": [
      "astro-ph",
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2008-01-11T22:43:43Z",
    "title_canon_sha256": "9e41b60e1af682bfa55a3c04d6179bf4b45ef3a5a6807971235479686adc4924"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.1847",
    "kind": "arxiv",
    "version": 3
  }
}