Pith Number

pith:ZCJVKCIF

pith:2019:ZCJVKCIFFPDJL2DXFB33LMYP4F

not attested not anchored not stored refs pending

Prospects and Limitations for Constraining Light Relics with Primordial Abundance Measurements

Alex Lagu\"e, Joel Meyers

arxiv:1908.05291 v2 · 2019-08-14 · 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{ZCJVKCIFFPDJL2DXFB33LMYP4F}

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	2026-07-05T00:41:34.935096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8935509052bc695e8772877b5b30fe1743b3df3b284072e293cdc137be1dc82

Aliases

arxiv: 1908.05291 · arxiv_version: 1908.05291v2 · doi: 10.48550/arxiv.1908.05291 · pith_short_12: ZCJVKCIFFPDJ · pith_short_16: ZCJVKCIFFPDJL2DX · pith_short_8: ZCJVKCIF

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/ZCJVKCIFFPDJL2DXFB33LMYP4F \
  | 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: c8935509052bc695e8772877b5b30fe1743b3df3b284072e293cdc137be1dc82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "033264bc23db8839648d8487ec20eb0381d131b1abb44fee6580d2971949af16",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-08-14T18:12:20Z",
    "title_canon_sha256": "ff7291fdad24648204e1ca1175e036c01cd3bcab6135e66ff08ab4a00dd99203"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05291",
    "kind": "arxiv",
    "version": 2
  }
}