Pith Number

pith:VAO4HY7W

pith:2012:VAO4HY7WMS5HPGGIXTUPWK7NPI

not attested not anchored not stored refs pending

Relic neutrinos and cosmic background radiation: a new way of comparison

P. R. Silva

arxiv:1203.5246 v1 · 2012-03-21 · physics.gen-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{VAO4HY7WMS5HPGGIXTUPWK7NPI}

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	2026-05-18T03:59:26.511568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a81dc3e3f664ba7798c8bce8fb2bed7a220dc2a32b6a7e6ca8ebb4a3e53a153b

Aliases

arxiv: 1203.5246 · arxiv_version: 1203.5246v1 · doi: 10.48550/arxiv.1203.5246 · pith_short_12: VAO4HY7WMS5H · pith_short_16: VAO4HY7WMS5HPGGI · pith_short_8: VAO4HY7W

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/VAO4HY7WMS5HPGGIXTUPWK7NPI \
  | 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: a81dc3e3f664ba7798c8bce8fb2bed7a220dc2a32b6a7e6ca8ebb4a3e53a153b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df35b08aaecfc1cadc4ebf3d231d3296db719c9efaaf4d65d28922648b441c19",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2012-03-21T22:52:46Z",
    "title_canon_sha256": "5b37ca76c4fe2a3d77dd1a2959b7caa7522d852228b87e75ccb70405a391dd6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5246",
    "kind": "arxiv",
    "version": 1
  }
}