Pith Number

pith:47BDTYCJ

pith:2014:47BDTYCJCA2IUBBMKJMJMKBDDE

not attested not anchored not stored refs pending

Dark Energy and the Schwarzian Derivative

G.W. Gibbons

arxiv:1403.5431 v1 · 2014-03-21 · hep-th · astro-ph.CO · 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{47BDTYCJCA2IUBBMKJMJMKBDDE}

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	2026-05-18T02:55:56.359485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7c239e04910348a042c525896282319314246bc47e7ee11491f3d28495b0c36

Aliases

arxiv: 1403.5431 · arxiv_version: 1403.5431v1 · doi: 10.48550/arxiv.1403.5431 · pith_short_12: 47BDTYCJCA2I · pith_short_16: 47BDTYCJCA2IUBBM · pith_short_8: 47BDTYCJ

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/47BDTYCJCA2IUBBMKJMJMKBDDE \
  | 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: e7c239e04910348a042c525896282319314246bc47e7ee11491f3d28495b0c36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea0e69e865dcae27bae5a9f274abe26dc4bc320e7087c27af814da04b2a097ca",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2014-03-21T11:55:51Z",
    "title_canon_sha256": "57bad0f35b629ee1fd0da6622bf1d35ba2275df08be5fa2f6de0284c8e80acd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.5431",
    "kind": "arxiv",
    "version": 1
  }
}