Pith Number

pith:YDZK7H43

pith:2017:YDZK7H43JM2MS3RF3RSAAQJQBW

not attested not anchored not stored refs pending

Using the tilted flat-$\Lambda$CDM and the untilted non-flat $\Lambda$CDM inflation models to measure cosmological parameters from a compilation of observational data

Bharat Ratra, Chan-Gyung Park

arxiv:1801.00213 v3 · 2017-12-31 · astro-ph.CO · gr-qc · hep-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YDZK7H43JM2MS3RF3RSAAQJQBW}

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

Intertwined Constraints in Extended Cosmologies: Dark Energy, Curvature, Neutrinos, and Inflation

The open-Universe signal: A model artifact rather than genuine curvature

Receipt and verification

First computed	2026-07-05T00:05:20.288103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0f2af9f9b4b34c96e25dc640041300db443735a180bdf0f8cdf71713a65ee80

Aliases

arxiv: 1801.00213 · arxiv_version: 1801.00213v3 · doi: 10.48550/arxiv.1801.00213 · pith_short_12: YDZK7H43JM2M · pith_short_16: YDZK7H43JM2MS3RF · pith_short_8: YDZK7H43

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/YDZK7H43JM2MS3RF3RSAAQJQBW \
  | 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: c0f2af9f9b4b34c96e25dc640041300db443735a180bdf0f8cdf71713a65ee80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8987701e1223b2dfe1983d0c1e9ecefa0c36ca3ad3676ad5d0b16c1acd2767ca",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-12-31T00:36:06Z",
    "title_canon_sha256": "b7e17a972fa5f088b21968a74ef3c6835e710caae1b85c1830c72cf084281dfe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.00213",
    "kind": "arxiv",
    "version": 3
  }
}