Pith Number

pith:VH3XQAZK

pith:1998:VH3XQAZKBWIEHBU2LMAE7NGEU2

not attested not anchored not stored refs resolved

Measurements of Omega and Lambda from 42 High-Redshift Supernovae

A.G. Kim, A. Goobar, A.S. Fruchter, A.V. Filippenko, B.J. Boyle, B. Schaefer, C. Lidman, C.R. Pennypacker, D.E. Groom, G. Aldering, G. Goldhaber, H.J.M. Newberg, I. M. Hook, J.C. Lee, M. Irwin, M.Y. Kim, N.J. Nunes, N. Panagia, N. Walton, P.G. Castro, P. Nugent, P. Ruiz-Lapuente, R.A. Knop, R.G. McMahon, R. Pain, R. Quimby, R.S. Ellis, S. Deustua, S. Fabbro, S. Perlmutter, T. Matheson, W.J. Couch (The Supernova Cosmology Project)

The analysis of 42 high-redshift Type Ia supernovae indicates that the cosmological constant is non-zero and positive.

arxiv:astro-ph/9812133 v1 · 1998-12-08 · astro-ph · hep-ex · hep-ph

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VH3XQAZKBWIEHBU2LMAE7NGEU2}

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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.

Claims

C1strongest claim

The data indicate that the cosmological constant is non-zero and positive, with a confidence of P(Lambda > 0) = 99%, including the identified systematic uncertainties. The data are strongly inconsistent with a Lambda = 0 flat cosmology.

C2weakest assumption

That Type Ia supernovae at high redshift can be standardized to the same intrinsic luminosity as local ones using the lightcurve width-luminosity relation, with no significant evolutionary changes or unrecognized systematics between the samples.

C3one line summary

42 high-redshift Type Ia supernovae yield Omega_M = 0.28 for a flat universe and show the cosmological constant is positive at 99% confidence.

References

13 extracted · 13 resolved · 2 Pith anchors

[1] A., & Fan, X 1938 · arXiv:astro-ph/9803277

[2] IUE - ULDA Access Guide No. 6: Supernovae, The Netherlands: ESA Cardelli, J. A., Clayton, G. C., & Mathis, J. S. 1989, ApJ, 345, 245 Carlberg, R. G. 1997, astro-ph/9708054 Carlberg, R. G., et al. 1998 1989 · arXiv:astro-ph/9708054

[3] In Presentations at the NATO ASI i n Aiguablava, Spain, LBL-38400, page III.1; also published in Thermonuclear Supernova, P. Ruiz-Lapuente, R. Canal, and J.Isern, editors, Dordrecht: Kluwer, page 777 1997

[4] Kayser, R., Helbig, P., & Schramm T. 1996, A&A, 318, 1996

[5] 1998, ApJ, in preparation Kim, A., Goobar, A., & Perlmutter, S 1998

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Receipt and verification

First computed	2026-07-04T15:32:05.680899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9f778032a0d9043869a5b004fb4c4a69c98868d56da9ff594472df28c01238e

Aliases

arxiv: astro-ph/9812133 · arxiv_version: astro-ph/9812133v1 · doi: 10.48550/arxiv.astro-ph/9812133 · pith_short_12: VH3XQAZKBWIE · pith_short_16: VH3XQAZKBWIEHBU2 · pith_short_8: VH3XQAZK

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/VH3XQAZKBWIEHBU2LMAE7NGEU2 \
  | 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: a9f778032a0d9043869a5b004fb4c4a69c98868d56da9ff594472df28c01238e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f2215d7cdb2fd2bb83ee335523d645ecf352b9ae434309320b962bcaf889ec2",
    "cross_cats_sorted": [
      "hep-ex",
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-12-08T03:27:34Z",
    "title_canon_sha256": "b17193622b16b6e52f08dc89f80146c75dbec5275ed918ad4fc1a8893e067a1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9812133",
    "kind": "arxiv",
    "version": 1
  }
}