Pith Number

pith:QNR3CZZS

pith:2013:QNR3CZZSZETJ4DZSL6Y5B3HB5Z

not attested not anchored not stored refs pending

The Lambda CDM-model in quantum field theory on curved spacetime and Dark Radiation

Thomas-Paul Hack

arxiv:1306.3074 v1 · 2013-06-13 · gr-qc · astro-ph.CO · 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{QNR3CZZSZETJ4DZSL6Y5B3HB5Z}

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	2026-05-18T03:20:59.675391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8363b16732c9269e0f325fb1d0ece1ee54e2008b13ee1bf3fdee4a26f6ee2adf

Aliases

arxiv: 1306.3074 · arxiv_version: 1306.3074v1 · doi: 10.48550/arxiv.1306.3074 · pith_short_12: QNR3CZZSZETJ · pith_short_16: QNR3CZZSZETJ4DZS · pith_short_8: QNR3CZZS

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/QNR3CZZSZETJ4DZSL6Y5B3HB5Z \
  | 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: 8363b16732c9269e0f325fb1d0ece1ee54e2008b13ee1bf3fdee4a26f6ee2adf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df3d5142ad7cbf048130785bbb5ba7c48c1ac5c350572c502e01b58ba78bc45d",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-06-13T10:58:27Z",
    "title_canon_sha256": "8e8cbcc66cbea06d557ba2a31a1718b4cfb358bf74044ef61ddefc124e65b3b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.3074",
    "kind": "arxiv",
    "version": 1
  }
}