Pith Number

pith:5ABDQXHZ

pith:2015:5ABDQXHZ5DKIZG3ZUCLWX3MZIM

not attested not anchored not stored refs pending

How can we tell whether dark energy is composed by multiple fields?

Germany), Luca Amendola (ITP, University of Heidelberg, Valeri Vardanyan

arxiv:1502.05922 v2 · 2015-02-20 · 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{5ABDQXHZ5DKIZG3ZUCLWX3MZIM}

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	2026-05-18T01:36:54.373724Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e802385cf9e8d48c9b79a0976bed99430a4be380d527c648501b669978b63cbf

Aliases

arxiv: 1502.05922 · arxiv_version: 1502.05922v2 · doi: 10.48550/arxiv.1502.05922 · pith_short_12: 5ABDQXHZ5DKI · pith_short_16: 5ABDQXHZ5DKIZG3Z · pith_short_8: 5ABDQXHZ

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/5ABDQXHZ5DKIZG3ZUCLWX3MZIM \
  | 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: e802385cf9e8d48c9b79a0976bed99430a4be380d527c648501b669978b63cbf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b059b14b721826f8e7e7cb36909040d49160d9f183eaabb0a6c3e8d7dc6b3653",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-02-20T16:27:46Z",
    "title_canon_sha256": "fef2465818382670a2d425f56192bdf23ede77b4b8fea9126b33d92032019580"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.05922",
    "kind": "arxiv",
    "version": 2
  }
}