Pith Number

pith:VKNIZOZ2

pith:2012:VKNIZOZ2T65MG2HUFGQDQD2KWA

not attested not anchored not stored refs pending

Depressing de Sitter in the Frozen Future

Andrew P. Lundgren, Mihai Bondarescu, Ruxandra Bondarescu

arxiv:1201.1298 v1 · 2012-01-05 · gr-qc · 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{VKNIZOZ2T65MG2HUFGQDQD2KWA}

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	2026-05-18T04:05:04.961784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa9a8cbb3a9fbac368f429a0380f4ab00cf1e20747effb35f7261652d828dc7f

Aliases

arxiv: 1201.1298 · arxiv_version: 1201.1298v1 · doi: 10.48550/arxiv.1201.1298 · pith_short_12: VKNIZOZ2T65M · pith_short_16: VKNIZOZ2T65MG2HU · pith_short_8: VKNIZOZ2

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/VKNIZOZ2T65MG2HUFGQDQD2KWA \
  | 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: aa9a8cbb3a9fbac368f429a0380f4ab00cf1e20747effb35f7261652d828dc7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94b7867f33e3c7b6903ed4d84a0bf1667bd9b8eb1cd29c3cf72d1649f44f4b97",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-01-05T21:01:58Z",
    "title_canon_sha256": "b39a9823af7775d9a916d01ca5da9cacd6dd94712332ce0d093909221148a395"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.1298",
    "kind": "arxiv",
    "version": 1
  }
}