Pith Number

pith:2F4RBJBO

pith:2001:2F4RBJBO6BZUHQUSK2LMDWAPTA

not attested not anchored not stored refs pending

Encoded Universality from a Single Physical Interaction

D. Bacon, D.P. DiVincenzo, J. Kempe, K.B. Whaley

arxiv:quant-ph/0112013 v1 · 2001-12-03 · 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{2F4RBJBO6BZUHQUSK2LMDWAPTA}

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.

Cited by

1 paper in Pith

Singlet-only Always-on Gapless Exchange Qubits with Baseband Control

Receipt and verification

First computed	2026-07-04T14:45:51.105338Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d17910a42ef07343c2925696c1d80f980e6d9e223b0e85b959123a1b9063e1f7

Aliases

arxiv: quant-ph/0112013 · arxiv_version: quant-ph/0112013v1 · doi: 10.48550/arxiv.quant-ph/0112013 · pith_short_12: 2F4RBJBO6BZU · pith_short_16: 2F4RBJBO6BZUHQUS · pith_short_8: 2F4RBJBO

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/2F4RBJBO6BZUHQUSK2LMDWAPTA \
  | 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: d17910a42ef07343c2925696c1d80f980e6d9e223b0e85b959123a1b9063e1f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5cd359cbaaf818c31735ea76586639be38746cdeff6952ea15d5ed73006e5e4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2001-12-03T12:17:25Z",
    "title_canon_sha256": "0866993001d7fa6b70d1ebbed6f45738c4f65dd1fe0d665cfe3d86b96adda7ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0112013",
    "kind": "arxiv",
    "version": 1
  }
}