Pith Number

pith:PD7LGN6K

pith:2006:PD7LGN6K5W3WZS6FCTUWMCAITD

not attested not anchored not stored refs pending

Constraint on the Effective Number of Neutrino Species from the WMAP and SDSS LRG Power Spectra

Fuminobu Takahashi, Kazuhide Ichikawa, Masahiro Kawasaki

arxiv:astro-ph/0611784 v2 · 2006-11-26 · astro-ph · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PD7LGN6K5W3WZS6FCTUWMCAITD}

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.

Cited by

1 paper in Pith

Two Micron-Size Dark Dimensions

Receipt and verification

First computed	2026-07-04T15:43:41.312422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78feb337caedb76ccbc514e966080898f97e211eb41880e9effc45921ca69528

Aliases

arxiv: astro-ph/0611784 · arxiv_version: astro-ph/0611784v2 · doi: 10.48550/arxiv.astro-ph/0611784 · pith_short_12: PD7LGN6K5W3W · pith_short_16: PD7LGN6K5W3WZS6F · pith_short_8: PD7LGN6K

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/PD7LGN6K5W3WZS6FCTUWMCAITD \
  | 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: 78feb337caedb76ccbc514e966080898f97e211eb41880e9effc45921ca69528

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e1d0b26769420664e1067ace626dc0223de5d55f592c1f3596c25d00f1744ab",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-11-26T09:47:38Z",
    "title_canon_sha256": "dda9b0a9337b235df25380864d9c4af6e01bb36e3ee03ea25fcb4ff03d0e294a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0611784",
    "kind": "arxiv",
    "version": 2
  }
}