Pith Number

pith:MEJX7ZGJ

pith:2018:MEJX7ZGJXCNJO7MHBDBSEFQFCH

not attested not anchored not stored refs pending

Isocurvature initial conditions for second order Boltzmann solvers

Karim A. Malik, Pedro Carrilho

arxiv:1803.08939 v1 · 2018-03-23 · 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{MEJX7ZGJXCNJO7MHBDBSEFQFCH}

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	2026-05-18T00:07:34.873580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61137fe4c9b89a977d8708c322160511e89d50513023fcb82626ccd83c495c86

Aliases

arxiv: 1803.08939 · arxiv_version: 1803.08939v1 · doi: 10.48550/arxiv.1803.08939 · pith_short_12: MEJX7ZGJXCNJ · pith_short_16: MEJX7ZGJXCNJO7MH · pith_short_8: MEJX7ZGJ

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/MEJX7ZGJXCNJO7MHBDBSEFQFCH \
  | 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: 61137fe4c9b89a977d8708c322160511e89d50513023fcb82626ccd83c495c86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a13c0f2d716c58d90c3f569dffccd191e07ee5d4446ede15ebc278eda66c8179",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-03-23T18:19:26Z",
    "title_canon_sha256": "63353e36f582c3c7d01f332ac583fbb461a2bdcc9dace4bba802ddf8e80f8735"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08939",
    "kind": "arxiv",
    "version": 1
  }
}