Pith Number

pith:CR4OXHUN

pith:2013:CR4OXHUNK4WRQ3DXJICDLDJUQ2

not attested not anchored not stored refs pending

Cosmic dark radiation and neutrinos

Elena Giusarma, Maria Archidiacono, Olga Mena, Steen Hannestad

arxiv:1307.0637 v1 · 2013-07-02 · astro-ph.CO · 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{CR4OXHUNK4WRQ3DXJICDLDJUQ2}

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

2 papers in Pith

CMB-S4 Science Case, Reference Design, and Project Plan

In the Realm of the Hubble tension $-$ a Review of Solutions

Receipt and verification

First computed	2026-05-18T03:19:25.013542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1478eb9e8d572d186c774a04358d3486afa43ccae5adece380531d9d7332ec48

Aliases

arxiv: 1307.0637 · arxiv_version: 1307.0637v1 · doi: 10.48550/arxiv.1307.0637 · pith_short_12: CR4OXHUNK4WR · pith_short_16: CR4OXHUNK4WRQ3DX · pith_short_8: CR4OXHUN

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/CR4OXHUNK4WRQ3DXJICDLDJUQ2 \
  | 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: 1478eb9e8d572d186c774a04358d3486afa43ccae5adece380531d9d7332ec48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c3e8065410d5d0ac52d37d5010eac6dc9741af3662300f6c50da8a7d682e30f",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-07-02T09:16:29Z",
    "title_canon_sha256": "fdbad88a71898106d932956a6dc68bee02223a32f6f9d8ab867d6da549dfc29f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.0637",
    "kind": "arxiv",
    "version": 1
  }
}