Pith Number

pith:X2ZSH47W

pith:2008:X2ZSH47WLBAM6JGHFVNGTJEO7L

not attested not anchored not stored refs pending

There is no explosion risk associated with superfluid Helium in the LHC cooling system

Bob McElrath, Malcolm Fairbairn

arxiv:0809.4004 v1 · 2008-09-23 · physics.pop-ph · cond-mat.other · hep-ex · hep-ph · physics.atom-ph · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X2ZSH47WLBAM6JGHFVNGTJEO7L}

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	2026-05-18T01:05:13.449872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

beb323f3f65840cf24c72d5a69a48efae1eef8000a336391799f07d5353789b2

Aliases

arxiv: 0809.4004 · arxiv_version: 0809.4004v1 · doi: 10.48550/arxiv.0809.4004 · pith_short_12: X2ZSH47WLBAM · pith_short_16: X2ZSH47WLBAM6JGH · pith_short_8: X2ZSH47W

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/X2ZSH47WLBAM6JGHFVNGTJEO7L \
  | 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: beb323f3f65840cf24c72d5a69a48efae1eef8000a336391799f07d5353789b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2ecba66d52e4fb54ecbc774122969b14d654c2203c220bedfde3c84aaf0da99",
    "cross_cats_sorted": [
      "cond-mat.other",
      "hep-ex",
      "hep-ph",
      "physics.atom-ph",
      "physics.ins-det"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2008-09-23T20:00:51Z",
    "title_canon_sha256": "bc2cd3ba889b0cdf08e39a0452196ea4584431f9e98e44b5fcad2c18842ce0b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.4004",
    "kind": "arxiv",
    "version": 1
  }
}