Pith Number

pith:XQGH5CK5

pith:2011:XQGH5CK5AAZT65JCTIIVYCQ4PD

not attested not anchored not stored refs pending

The Fermi Problem in Discrete Systems

Benni Reznik, Erez Zohar

arxiv:1103.5585 v2 · 2011-03-29 · quant-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{XQGH5CK5AAZT65JCTIIVYCQ4PD}

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	2026-05-18T02:02:43.602266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc0c7e895d00333f75229a115c0a1c78ee2a9e7a06d6cc9dd867917bcb17b5be

Aliases

arxiv: 1103.5585 · arxiv_version: 1103.5585v2 · doi: 10.48550/arxiv.1103.5585 · pith_short_12: XQGH5CK5AAZT · pith_short_16: XQGH5CK5AAZT65JC · pith_short_8: XQGH5CK5

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/XQGH5CK5AAZT65JCTIIVYCQ4PD \
  | 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: bc0c7e895d00333f75229a115c0a1c78ee2a9e7a06d6cc9dd867917bcb17b5be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22959f6a8357aeab0a84629c3e4d42da82ad8e7eba15ec4c4e746db18e05c4be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-03-29T10:05:37Z",
    "title_canon_sha256": "c02437d167c81a3df3484c719ea6717d89c486c5a06d173c8cd0f7726af9ac75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.5585",
    "kind": "arxiv",
    "version": 2
  }
}