Pith Number

pith:PZ6R4HOH

pith:2012:PZ6R4HOHQ2PA6F6WDMEGCHIO3X

not attested not anchored not stored refs pending

Quantum gravity and the cosmological constant: lessons from two-dimensional dilaton gravity

2), (2) ICMPA, Benin), CP3, Jan Govaerts (1, Simone Zonetti (1) ((1) Louvain U.

arxiv:1212.4538 v2 · 2012-12-18 · hep-th · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PZ6R4HOHQ2PA6F6WDMEGCHIO3X}

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	2026-05-18T03:27:32.282797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e7d1e1dc7869e0f17d61b08611d0eddecb3856441d8475c0d38b3cc24b9b1c3

Aliases

arxiv: 1212.4538 · arxiv_version: 1212.4538v2 · doi: 10.48550/arxiv.1212.4538 · pith_short_12: PZ6R4HOHQ2PA · pith_short_16: PZ6R4HOHQ2PA6F6W · pith_short_8: PZ6R4HOH

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/PZ6R4HOHQ2PA6F6WDMEGCHIO3X \
  | 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: 7e7d1e1dc7869e0f17d61b08611d0eddecb3856441d8475c0d38b3cc24b9b1c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee90896997184a0c3a2a53120ef2d99c49224e688d3b3d4cb79f3edb1e34e3a3",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2012-12-18T23:41:01Z",
    "title_canon_sha256": "4fd4cf871acfd04426d436ac878bc45ebf428f0494a52ff895d7a90205731041"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.4538",
    "kind": "arxiv",
    "version": 2
  }
}