Pith Number

pith:FC3DTYXD

pith:2010:FC3DTYXDIWMPW6ZXOYDVMXAVSY

not attested not anchored not stored refs pending

Neutrinos, WMAP, and BBN

2), (2) Brookhaven National Laboratory), Cecilia Lunardini (1, Christel Smith (1) ((1) Arizona State University, Lawrence M. Krauss (1)

arxiv:1009.4666 v2 · 2010-09-23 · hep-ph · astro-ph.CO · nucl-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{FC3DTYXDIWMPW6ZXOYDVMXAVSY}

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	2026-05-18T04:35:46.823068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28b639e2e34598fb7b377607565c159612a7008941b8caf40f6cda676cee8dc7

Aliases

arxiv: 1009.4666 · arxiv_version: 1009.4666v2 · doi: 10.48550/arxiv.1009.4666 · pith_short_12: FC3DTYXDIWMP · pith_short_16: FC3DTYXDIWMPW6ZX · pith_short_8: FC3DTYXD

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/FC3DTYXDIWMPW6ZXOYDVMXAVSY \
  | 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: 28b639e2e34598fb7b377607565c159612a7008941b8caf40f6cda676cee8dc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c51dfd16929796a4784c68d4b311a32256bbac48a61ab83f3b890b6c54cb98d",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "nucl-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2010-09-23T17:52:26Z",
    "title_canon_sha256": "66f4619767437d5af7df582f2053aa0f8a80c04dba5e0584af57a3e83b9efb8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4666",
    "kind": "arxiv",
    "version": 2
  }
}