Pith Number

pith:XLH76Z5I

pith:2012:XLH76Z5I62X72ECM6UQXGZBQVO

not attested not anchored not stored refs pending

The two envelopes probability paradox: Much ado about nothing

R. A. Vazquez

arxiv:1206.4805 v1 · 2012-06-21 · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XLH76Z5I62X72ECM6UQXGZBQVO}

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	2026-05-18T03:52:54.403295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bacfff67a8f6affd104cf521736430ab8bc8f3f2e83091a9bbec17b4e5547b14

Aliases

arxiv: 1206.4805 · arxiv_version: 1206.4805v1 · doi: 10.48550/arxiv.1206.4805 · pith_short_12: XLH76Z5I62X7 · pith_short_16: XLH76Z5I62X72ECM · pith_short_8: XLH76Z5I

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/XLH76Z5I62X72ECM6UQXGZBQVO \
  | 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: bacfff67a8f6affd104cf521736430ab8bc8f3f2e83091a9bbec17b4e5547b14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dfa334410a9c2e8876914d1c80defd612bc7531558f8b636ad96d45cc808b11",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2012-06-21T08:16:44Z",
    "title_canon_sha256": "00c85e8f3bae6cf8dda0cdcbd47b1ae47cbf7cbdb48334883afdbc78844c380c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.4805",
    "kind": "arxiv",
    "version": 1
  }
}