Pith Number

pith:ERG53L6J

pith:2019:ERG53L6JWLL5KRGFBF3OL4FXII

not attested not anchored not stored refs pending

Anthropic Bound on Dark Radiation and its Implications for Reheating

Fuminobu Takahashi, Masaki Yamada

arxiv:1904.12864 v3 · 2019-04-29 · astro-ph.CO · hep-ph · hep-th

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-17T23:40:32.282788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

244dddafc9b2d7d544c50976e5f0b742293b5adedfbe0d733867491b879687c0

Aliases

arxiv: 1904.12864 · arxiv_version: 1904.12864v3 · doi: 10.48550/arxiv.1904.12864

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/ERG53L6JWLL5KRGFBF3OL4FXII \
  | 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: 244dddafc9b2d7d544c50976e5f0b742293b5adedfbe0d733867491b879687c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "344632b1cc5abe0a40e1ae8520a0df32272466286fa4fd346f0fb2e327a057de",
    "cross_cats_sorted": [
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-04-29T18:00:03Z",
    "title_canon_sha256": "71f73e7f16edb923bb23b5aba0ae93299d693cb17fe41aa3fb44ae215ad0fb5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.12864",
    "kind": "arxiv",
    "version": 3
  }
}