Pith Number

pith:TPSMRBHA

pith:2019:TPSMRBHAGDN5XKGOW3CVMT6DVI

not attested not anchored not stored refs pending

Can dark energy be expressed as a power series of the Hubble parameter?

Joan Sola, Mehdi Rezaei, Mohammad Malekjani

arxiv:1905.00100 v4 · 2019-04-30 · gr-qc · astro-ph.CO · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TPSMRBHAGDN5XKGOW3CVMT6DVI}

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	2026-05-17T23:39:24.308982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9be4c884e030dbdba8ceb6c5564fc3aa0e6837fdabff915ab0367c5da642ff05

Aliases

arxiv: 1905.00100 · arxiv_version: 1905.00100v4 · doi: 10.48550/arxiv.1905.00100 · pith_short_12: TPSMRBHAGDN5 · pith_short_16: TPSMRBHAGDN5XKGO · pith_short_8: TPSMRBHA

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/TPSMRBHAGDN5XKGOW3CVMT6DVI \
  | 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: 9be4c884e030dbdba8ceb6c5564fc3aa0e6837fdabff915ab0367c5da642ff05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37b123680e5217d4993755336f7f330057c2d3669169376866e3c09158fac14d",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-04-30T20:51:59Z",
    "title_canon_sha256": "f4a98c9ccee58d45c58627933c6b31c1a5aae7478f2d13df81e07da7b124d4cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.00100",
    "kind": "arxiv",
    "version": 4
  }
}