pith. sign in
Pith Number

pith:D4236CBH

pith:2012:D4236CBHAI4TEUN7Z2NP63A3HH
not attested not anchored not stored refs pending

Linear dark energy equation of state revealed by supernovae?

Irene Sendra, Ruth Lazkoz, Vincenzo Salzano, Yun Wang

arxiv:1211.1012 v3 · 2012-11-05 · astro-ph.CO

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{D4236CBHAI4TEUN7Z2NP63A3HH}

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 2026-05-18T02:31:04.204936Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

1f35bf082702393251bfce9aff6c1b39d17f3eafedc2ed7bb0f0f1cb01b66628

Aliases

arxiv: 1211.1012 · arxiv_version: 1211.1012v3 · doi: 10.48550/arxiv.1211.1012 · pith_short_12: D4236CBHAI4T · pith_short_16: D4236CBHAI4TEUN7 · pith_short_8: D4236CBH
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/D4236CBHAI4TEUN7Z2NP63A3HH \
  | 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: 1f35bf082702393251bfce9aff6c1b39d17f3eafedc2ed7bb0f0f1cb01b66628
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "fdfc9775e853932068b4816182b597ab6499a5dad188be227ddecc53e919979e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-05T21:00:01Z",
    "title_canon_sha256": "c737fa1c3be532325b5645221f959c6b567964c7168430b0c59a2c46ed2c73d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1012",
    "kind": "arxiv",
    "version": 3
  }
}