Pith Number

pith:YMUHTUOY

pith:2009:YMUHTUOYW5MZJG5FJFK427JG56

not attested not anchored not stored refs pending

Primordial Trispectrum from Entropy Perturbations in Multifield DBI Model

Bin Hu, Xian Gao

arxiv:0903.1920 v4 · 2009-03-11 · 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{YMUHTUOYW5MZJG5FJFK427JG56}

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	2026-07-04T15:47:51.455251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c32879d1d8b759949ba54955cd7d26efbcc8ae126fc7df3bca43a1ba184f3312

Aliases

arxiv: 0903.1920 · arxiv_version: 0903.1920v4 · doi: 10.48550/arxiv.0903.1920 · pith_short_12: YMUHTUOYW5MZ · pith_short_16: YMUHTUOYW5MZJG5F · pith_short_8: YMUHTUOY

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/YMUHTUOYW5MZJG5FJFK427JG56 \
  | 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: c32879d1d8b759949ba54955cd7d26efbcc8ae126fc7df3bca43a1ba184f3312

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "437ec74ee7900e8f824d865e38139377b8532e9eb5286c2c383f74cdb1c6e5c9",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-03-11T07:44:23Z",
    "title_canon_sha256": "18b39918a5695dca0cfd0276fc4f1f190c721eeebe186f0da9b03711b507e18e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1920",
    "kind": "arxiv",
    "version": 4
  }
}