Pith Number

pith:UEV2SVHP

pith:2003:UEV2SVHP3W6NLSHYGBT6KSWF7P

not attested not anchored not stored refs pending

Neutrinos from the Big Bang

Subir Sarkar (Oxford)

arxiv:hep-ph/0302175 v2 · 2003-02-19 · hep-ph · astro-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{UEV2SVHP3W6NLSHYGBT6KSWF7P}

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	2026-05-18T04:28:37.670326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a12ba954efddbcd5c8f83067e54ac5fbf7a9eb7e5a255f7826a122e81bd1cfe6

Aliases

arxiv: hep-ph/0302175 · arxiv_version: hep-ph/0302175v2 · doi: 10.48550/arxiv.hep-ph/0302175 · pith_short_12: UEV2SVHP3W6N · pith_short_16: UEV2SVHP3W6NLSHY · pith_short_8: UEV2SVHP

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/UEV2SVHP3W6NLSHYGBT6KSWF7P \
  | 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: a12ba954efddbcd5c8f83067e54ac5fbf7a9eb7e5a255f7826a122e81bd1cfe6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d02cb44edf4bc3524de1cc49789126a1824f3b3610dff4a62c1b159502550a0",
    "cross_cats_sorted": [
      "astro-ph"
    ],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "2003-02-19T20:39:32Z",
    "title_canon_sha256": "2f8ee772f7f5fa7b37d92076756f806e40ad92fc44613decbb5804fe59df44c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/0302175",
    "kind": "arxiv",
    "version": 2
  }
}