Pith Number

pith:J67KXW2L

pith:2011:J67KXW2L5UY3HE2VRQ34NZURID

not attested not anchored not stored refs pending

Nonparametric Reconstruction of the Dark Energy Equation of State from Diverse Data Sets

Bruno Sanso, David Higdon, Herbie Lee, Katrin Heitmann, Salman Habib, Tracy Holsclaw, Ujjaini Alam

arxiv:1104.2041 v1 · 2011-04-11 · 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{J67KXW2L5UY3HE2VRQ34NZURID}

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.

Cited by

2 papers in Pith

Negative neutrino mass or negative dark energy?

Do equation of state parametrizations of dark energy faithfully capture the dynamics of the late universe?

Receipt and verification

First computed	2026-05-18T02:02:35.192414Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fbeabdb4bed31b393558c37c6e69140e68d1e06ab0b5e21de5732afc7dfc04e

Aliases

arxiv: 1104.2041 · arxiv_version: 1104.2041v1 · doi: 10.48550/arxiv.1104.2041 · pith_short_12: J67KXW2L5UY3 · pith_short_16: J67KXW2L5UY3HE2V · pith_short_8: J67KXW2L

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/J67KXW2L5UY3HE2VRQ34NZURID \
  | 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: 4fbeabdb4bed31b393558c37c6e69140e68d1e06ab0b5e21de5732afc7dfc04e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "468a352b63c25fd3187653d724e7d17150aadb4e92b16975d736d860638d2d6d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-04-11T20:00:06Z",
    "title_canon_sha256": "c6fc78e9b1365ee67041b2e7bc9a7d25328e3dd04b3ab9bcc365e3274458fbaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2041",
    "kind": "arxiv",
    "version": 1
  }
}