Pith Number

pith:KITSJ2IM

pith:2009:KITSJ2IMCD7OODVTSZSO2Z2YQU

not attested not anchored not stored refs pending

Invisible Upsilon decays into Light Dark Matter

Pierre Fayet

arxiv:0910.2587 v2 · 2009-10-14 · hep-ph · astro-ph.CO · hep-ex

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KITSJ2IMCD7OODVTSZSO2Z2YQU}

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	2026-05-18T02:24:46.817339Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

522724e90c10fee70eb39664ed675885151a794bb02e031a5c2d6ce886b6ca4b

Aliases

arxiv: 0910.2587 · arxiv_version: 0910.2587v2 · doi: 10.48550/arxiv.0910.2587 · pith_short_12: KITSJ2IMCD7O · pith_short_16: KITSJ2IMCD7OODVT · pith_short_8: KITSJ2IM

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/KITSJ2IMCD7OODVTSZSO2Z2YQU \
  | 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: 522724e90c10fee70eb39664ed675885151a794bb02e031a5c2d6ce886b6ca4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69681e33a9c98b7ca9d4b48fb160fe88d1ee3235a1ee677fbcaa191ae22f93ea",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-ex"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2009-10-14T10:56:09Z",
    "title_canon_sha256": "01328a6c289510b9f3736ea599ccea8be63d86599e075697ede05bdf4ff44b12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.2587",
    "kind": "arxiv",
    "version": 2
  }
}