Pith Number

pith:4TGHRTCK

pith:2011:4TGHRTCKJMXTSHJYWMQYGBAC2Q

not attested not anchored not stored refs pending

Is Dark Energy a Cosmic Casimir Effect?

Kevin Cahill

arxiv:1102.5572 v3 · 2011-02-28 · hep-ph · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4TGHRTCKJMXTSHJYWMQYGBAC2Q}

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	2026-05-18T04:25:48.588961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4cc78cc4a4b2f391d38b321830402d409e7a0ccf4e286f74a5bae5e4c5a0f4a

Aliases

arxiv: 1102.5572 · arxiv_version: 1102.5572v3 · doi: 10.48550/arxiv.1102.5572 · pith_short_12: 4TGHRTCKJMXT · pith_short_16: 4TGHRTCKJMXTSHJY · pith_short_8: 4TGHRTCK

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/4TGHRTCKJMXTSHJYWMQYGBAC2Q \
  | 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: e4cc78cc4a4b2f391d38b321830402d409e7a0ccf4e286f74a5bae5e4c5a0f4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9be67b8b864d0fc228d67b735f48727ef807954b579b46f62c0628edc200596",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2011-02-28T02:19:59Z",
    "title_canon_sha256": "7d084ee71a154c90a04a2caf9752198fee74cde54036213d9c6c639a5a93f948"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.5572",
    "kind": "arxiv",
    "version": 3
  }
}