Pith Number

pith:NPKRBDM5

pith:2018:NPKRBDM5D4PLH3VSNH4G2J37SQ

not attested not anchored not stored refs pending

Ghost dark energy in the DGP braneworld

A. Sheykhi, M. Abdollahi Zadeh

arxiv:1807.00213 v1 · 2018-06-30 · 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{NPKRBDM5D4PLH3VSNH4G2J37SQ}

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	2026-05-18T00:01:58.837924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bd5108d9d1f1eb3eeb269f86d277f941adbcf5cde63eef08399a6f779d09de1

Aliases

arxiv: 1807.00213 · arxiv_version: 1807.00213v1 · doi: 10.48550/arxiv.1807.00213 · pith_short_12: NPKRBDM5D4PL · pith_short_16: NPKRBDM5D4PLH3VS · pith_short_8: NPKRBDM5

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/NPKRBDM5D4PLH3VSNH4G2J37SQ \
  | 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: 6bd5108d9d1f1eb3eeb269f86d277f941adbcf5cde63eef08399a6f779d09de1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "508e22901e396df5525af3ec3852b66982768ba5ff05f78ad990570d97da75b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-06-30T18:01:32Z",
    "title_canon_sha256": "d96417f6deae6bdc45310a53d1040d630a7ce7c69af0f32a0692c4a0e1866329"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.00213",
    "kind": "arxiv",
    "version": 1
  }
}