Pith Number

pith:3PT4B3DE

pith:2016:3PT4B3DEMQCWQETGULLYBDICUJ

not attested not anchored not stored refs pending

Cosmological backreaction in higher-derivative gravity expansions

Anthony W. H. Preston

arxiv:1605.06121 v2 · 2016-05-19 · gr-qc · astro-ph.CO · 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{3PT4B3DEMQCWQETGULLYBDICUJ}

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	2026-05-18T01:08:32.179440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbe7c0ec646405681266a2d7808d02a27a199749c4d3bc3b2ed7166d9e7cd487

Aliases

arxiv: 1605.06121 · arxiv_version: 1605.06121v2 · doi: 10.48550/arxiv.1605.06121 · pith_short_12: 3PT4B3DEMQCW · pith_short_16: 3PT4B3DEMQCWQETG · pith_short_8: 3PT4B3DE

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/3PT4B3DEMQCWQETGULLYBDICUJ \
  | 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: dbe7c0ec646405681266a2d7808d02a27a199749c4d3bc3b2ed7166d9e7cd487

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2c485dc14ca37aa149bb1847707c0b260d03f86ee28aecab999dd96d61c4a42",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-05-19T20:00:14Z",
    "title_canon_sha256": "99f9b59a506e18b693f82da739f080f76c875211e96a4b7d10eae0b1270a1d72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.06121",
    "kind": "arxiv",
    "version": 2
  }
}