Pith Number

pith:T3SJWFDE

pith:2011:T3SJWFDEFHOFQIUYY2EYLJMNWH

not attested not anchored not stored refs pending

Negative Energy Cosmology and the Cosmological Constant

Spinoza Institute, Tomislav Prokopec (ITP, Utrecht University)

arxiv:1105.0078 v1 · 2011-04-30 · astro-ph.CO · gr-qc · 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{T3SJWFDEFHOFQIUYY2EYLJMNWH}

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	2026-05-18T04:23:12.550238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ee49b146429dc582298c68985a58db1f001dcd0cc2a5735b02e9edd2ea7e418

Aliases

arxiv: 1105.0078 · arxiv_version: 1105.0078v1 · doi: 10.48550/arxiv.1105.0078 · pith_short_12: T3SJWFDEFHOF · pith_short_16: T3SJWFDEFHOFQIUY · pith_short_8: T3SJWFDE

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/T3SJWFDEFHOFQIUYY2EYLJMNWH \
  | 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: 9ee49b146429dc582298c68985a58db1f001dcd0cc2a5735b02e9edd2ea7e418

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2308fa8f1f79c98c9800b72a61053f10605a4821dde53d27afaed3387f61419",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-04-30T11:59:36Z",
    "title_canon_sha256": "a03da3ac3aecb8162354dc2fd8f71f11d2fdb9b3f2acf43261067c61f34b65f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.0078",
    "kind": "arxiv",
    "version": 1
  }
}