Pith Number

pith:37G7TMTN

pith:2018:37G7TMTNDVQLQWLHNJZM2MKO4H

not attested not anchored not stored refs pending

On the consistency of the expansion with the perturbations

David Polarski, Radouane Gannouji

arxiv:1805.08230 v2 · 2018-05-21 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{37G7TMTNDVQLQWLHNJZM2MKO4H}

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

1 paper in Pith

$\Lambda$CDM-like models with future singularities

Receipt and verification

First computed	2026-05-18T00:01:59.325723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfcdf9b26d1d60b859676a72cd314ee1c5891ecf6d5a3647d5400d83664c0748

Aliases

arxiv: 1805.08230 · arxiv_version: 1805.08230v2 · doi: 10.48550/arxiv.1805.08230 · pith_short_12: 37G7TMTNDVQL · pith_short_16: 37G7TMTNDVQLQWLH · pith_short_8: 37G7TMTN

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/37G7TMTNDVQLQWLHNJZM2MKO4H \
  | 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: dfcdf9b26d1d60b859676a72cd314ee1c5891ecf6d5a3647d5400d83664c0748

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4f4f43ef43c815c8fcd158cfa44d1a0fb90e665ed455ca5b002a8f8205273fa",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-05-21T18:02:52Z",
    "title_canon_sha256": "7b1646ce2444a2b8dfc690568261bc4327e6eb6279daa0c9c1c59f922e960472"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08230",
    "kind": "arxiv",
    "version": 2
  }
}