Pith Number

pith:ENC2VZS6

pith:2016:ENC2VZS6E5MMVKQPVSSJJWSWHR

not attested not anchored not stored refs pending

Dark Radiation and Inflationary Freedom after Planck 2015

Elena Giusarma, Eleonora Di Valentino, Martina Gerbino, Olga Mena, Stefano Gariazzo

arxiv:1601.07557 v2 · 2016-01-27 · 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{ENC2VZS6E5MMVKQPVSSJJWSWHR}

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	2026-05-18T01:13:55.995714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2345aae65e2758caaa0faca494da563c6f64fa3fb9b2eaf5405e0207bc73e863

Aliases

arxiv: 1601.07557 · arxiv_version: 1601.07557v2 · doi: 10.48550/arxiv.1601.07557 · pith_short_12: ENC2VZS6E5MM · pith_short_16: ENC2VZS6E5MMVKQP · pith_short_8: ENC2VZS6

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/ENC2VZS6E5MMVKQPVSSJJWSWHR \
  | 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: 2345aae65e2758caaa0faca494da563c6f64fa3fb9b2eaf5405e0207bc73e863

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcaf4e502309f69f1fd67820847e0f54ef16aa6a9da6a8acc682ce83432c687f",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2016-01-27T21:00:10Z",
    "title_canon_sha256": "9fee8a64c1ab5d233f7584182dce47e3a697b2a4716a9eeb5d3d89cce937e630"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.07557",
    "kind": "arxiv",
    "version": 2
  }
}