Pith Number

pith:IKRNJWWU

pith:2018:IKRNJWWUCQM7ATMZTKEIH2KZHC

not attested not anchored not stored refs pending

The MESS of cosmological perturbations

Antonio Enea Romano, Sergio A. Vallejo Pena

arxiv:1806.01941 v2 · 2018-06-05 · 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{IKRNJWWUCQM7ATMZTKEIH2KZHC}

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	2026-05-18T00:07:17.394066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42a2d4dad41419f04d999a8883e95938a9150a4627abe0d071fe1e5c1a44f579

Aliases

arxiv: 1806.01941 · arxiv_version: 1806.01941v2 · doi: 10.48550/arxiv.1806.01941 · pith_short_12: IKRNJWWUCQM7 · pith_short_16: IKRNJWWUCQM7ATMZ · pith_short_8: IKRNJWWU

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/IKRNJWWUCQM7ATMZTKEIH2KZHC \
  | 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: 42a2d4dad41419f04d999a8883e95938a9150a4627abe0d071fe1e5c1a44f579

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89689139c25c8ea5185d8c1235725bae4ff03771773c70106ab5ebf6a675d196",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-06-05T21:38:58Z",
    "title_canon_sha256": "45d0862a17229186d020392daf9297535609f9918650d23aff3159bcfd8577d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.01941",
    "kind": "arxiv",
    "version": 2
  }
}