Pith Number

pith:UEVRQ5MW

pith:2015:UEVRQ5MWGITSSCVA2ZRW3XGKM2

not attested not anchored not stored refs pending

A bound system in the expanding universe with modified holographic Ricci dark energy and dark matter

En-Kun Li, Jin-Ling Geng, Peng-Fei Duan, Yu Zhang

arxiv:1503.06645 v1 · 2015-02-12 · physics.gen-ph · 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{UEVRQ5MWGITSSCVA2ZRW3XGKM2}

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	2026-05-18T02:20:37.704623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a12b1875963227290aa0d6636ddcca66957e19e3af9554a6fa75d5d0a7456bae

Aliases

arxiv: 1503.06645 · arxiv_version: 1503.06645v1 · doi: 10.48550/arxiv.1503.06645 · pith_short_12: UEVRQ5MWGITS · pith_short_16: UEVRQ5MWGITSSCVA · pith_short_8: UEVRQ5MW

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/UEVRQ5MWGITSSCVA2ZRW3XGKM2 \
  | 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: a12b1875963227290aa0d6636ddcca66957e19e3af9554a6fa75d5d0a7456bae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ab6f21414f737a56b190f6226085372b12cc205d7fa7e792fc66deb4a169e07",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2015-02-12T10:39:33Z",
    "title_canon_sha256": "2ffc1797061a71ee104443f4088df7e93d574726f07301da6fde70779367b11b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.06645",
    "kind": "arxiv",
    "version": 1
  }
}