Pith Number

pith:5ZRULQY2

pith:2018:5ZRULQY2Z7VPEEJK5ZY34ITXHG

not attested not anchored not stored refs pending

Cosmological backreaction and its dependence on spacetime foliation

Pierre Mourier, Thomas Buchert, Xavier Roy

arxiv:1805.10455 v2 · 2018-05-26 · gr-qc · astro-ph.CO · 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{5ZRULQY2Z7VPEEJK5ZY34ITXHG}

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	2026-05-17T23:59:27.836248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee6345c31acfeaf2112aee71be227739afdf1647d4e0f902428afa561f8b7c9e

Aliases

arxiv: 1805.10455 · arxiv_version: 1805.10455v2 · doi: 10.48550/arxiv.1805.10455 · pith_short_12: 5ZRULQY2Z7VP · pith_short_16: 5ZRULQY2Z7VPEEJK · pith_short_8: 5ZRULQY2

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/5ZRULQY2Z7VPEEJK5ZY34ITXHG \
  | 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: ee6345c31acfeaf2112aee71be227739afdf1647d4e0f902428afa561f8b7c9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0b9e80cecd501fee44597c5e0e0183cee562cdd262f92c55f89d34d75e74b96",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-05-26T10:04:25Z",
    "title_canon_sha256": "70036defcfc7fee89dff5a518de11c102edf7439517d802399103a6a2acbf38a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.10455",
    "kind": "arxiv",
    "version": 2
  }
}