Pith Number

pith:7KYBF3WW

pith:2017:7KYBF3WW2PKXQODPJS7UUCJOHQ

not attested not anchored not stored refs pending

The Cardassian expansion revisited: constraints from updated Hubble parameter measurements and Type Ia Supernovae data

Juan Magana, Mario H. Amante, Miguel A. Garcia-Aspeitia, V. Motta

arxiv:1706.09848 v2 · 2017-06-29 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7KYBF3WW2PKXQODPJS7UUCJOHQ}

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	2026-05-18T00:23:35.429588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fab012eed6d3d578386f4cbf4a092e3c25c6da52ed6218b64df83a8c22415159

Aliases

arxiv: 1706.09848 · arxiv_version: 1706.09848v2 · doi: 10.48550/arxiv.1706.09848 · pith_short_12: 7KYBF3WW2PKX · pith_short_16: 7KYBF3WW2PKXQODP · pith_short_8: 7KYBF3WW

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/7KYBF3WW2PKXQODPJS7UUCJOHQ \
  | 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: fab012eed6d3d578386f4cbf4a092e3c25c6da52ed6218b64df83a8c22415159

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30ba8b2a23283bfdf8bc6eb3932b5c8ea4a74e7171d0dc7c09cb64437510baee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-06-29T16:52:42Z",
    "title_canon_sha256": "fc0d678e35fe077beb00126a0545b3f53a6f2432744160b35bdcc5fc852379ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.09848",
    "kind": "arxiv",
    "version": 2
  }
}