Pith Number

pith:Z5F6FSBC

pith:2015:Z5F6FSBCTOWWNQUH63MZYTJBBD

not attested not anchored not stored refs pending

Utilizing the Updated Gamma-Ray Bursts and Type Ia Supernovae to Constrain the Cardassian Expansion Model and Dark Energy

Jun-Jie Wei, Qing-Bo Ma, Xue-Feng Wu (PMO)

arxiv:1504.02308 v1 · 2015-04-09 · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z5F6FSBCTOWWNQUH63MZYTJBBD}

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	2026-05-18T01:32:29.847212Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf4be2c8229bad66c287f6d99c4d2108cc856462136eec0f1aeb145eddeadbef

Aliases

arxiv: 1504.02308 · arxiv_version: 1504.02308v1 · doi: 10.48550/arxiv.1504.02308 · pith_short_12: Z5F6FSBCTOWW · pith_short_16: Z5F6FSBCTOWWNQUH · pith_short_8: Z5F6FSBC

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/Z5F6FSBCTOWWNQUH63MZYTJBBD \
  | 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: cf4be2c8229bad66c287f6d99c4d2108cc856462136eec0f1aeb145eddeadbef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c51da559e8e283b6093dd9aec379b8e3294ff861f766f5bc04a3435854bc90f",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-04-09T13:51:34Z",
    "title_canon_sha256": "a37b818ba8ccad0c8fcef0825b521d072ae6ddac0e73e3751c1b8268c241e4c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.02308",
    "kind": "arxiv",
    "version": 1
  }
}