Pith Number

pith:IG3HDL2W

pith:2012:IG3HDL2WNJOSF3ZP4LOZBOH4N5

not attested not anchored not stored refs pending

Effective field theory for perturbations in dark energy and modified gravity

Jonathan A. Pearson

arxiv:1205.3611 v1 · 2012-05-16 · astro-ph.CO · gr-qc · 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{IG3HDL2WNJOSF3ZP4LOZBOH4N5}

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	2026-05-18T03:55:34.585447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41b671af566a5d22ef2fe2dd90b8fc6f5ac002f622c9bd98e18214f8b6a2bb5f

Aliases

arxiv: 1205.3611 · arxiv_version: 1205.3611v1 · doi: 10.48550/arxiv.1205.3611 · pith_short_12: IG3HDL2WNJOS · pith_short_16: IG3HDL2WNJOSF3ZP · pith_short_8: IG3HDL2W

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/IG3HDL2WNJOSF3ZP4LOZBOH4N5 \
  | 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: 41b671af566a5d22ef2fe2dd90b8fc6f5ac002f622c9bd98e18214f8b6a2bb5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d98e394dd0fa31efb45696eaaf6f0a96ac69b66a50502448ef10b7e485a0902",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-05-16T09:35:26Z",
    "title_canon_sha256": "99aa33b13b4d0fc4ec0373b9b72f760726ae1eb48a4c59cc29d5471c4eb14daa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.3611",
    "kind": "arxiv",
    "version": 1
  }
}