Pith Number

pith:N2LPTO7O

pith:2013:N2LPTO7OJPRQ6THWPET6TVDYBF

not attested not anchored not stored refs pending

Fast and precise way to calculate the posterior for the local non-Gaussianity parameter $f_\text{nl}$ from cosmic microwave background observations

Marco Selig, Niels Oppermann, Rishi Khatri, Sebastian Dorn, Torsten A. En{\ss}lin

arxiv:1307.3884 v2 · 2013-07-15 · astro-ph.CO · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N2LPTO7OJPRQ6THWPET6TVDYBF}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:07:13.988818Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e96f9bbee4be30f4cf67927e9d478096b7b45b2d3edc086abbc9ca098154088

Aliases

arxiv: 1307.3884 · arxiv_version: 1307.3884v2 · doi: 10.48550/arxiv.1307.3884 · pith_short_12: N2LPTO7OJPRQ · pith_short_16: N2LPTO7OJPRQ6THW · pith_short_8: N2LPTO7O

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/N2LPTO7OJPRQ6THWPET6TVDYBF \
  | 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: 6e96f9bbee4be30f4cf67927e9d478096b7b45b2d3edc086abbc9ca098154088

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "967ffd2b990d852029db3cbdca6d12ffc22ff144511a1c4e27d6ea9a34f7d5c0",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-07-15T10:52:19Z",
    "title_canon_sha256": "55f3c2d879b24a011a7373d7bc0ce6136d03f35790ed51c7574ccf00674534ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.3884",
    "kind": "arxiv",
    "version": 2
  }
}