Pith Number

pith:VU2PFYE7

pith:1998:VU2PFYE7CLRIJECCPRMDIFZJIF

not attested not anchored not stored refs pending

On the Power of One Bit of Quantum Information

E. Knill, R. Laflamme

arxiv:quant-ph/9802037 v1 · 1998-02-12 · 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{VU2PFYE7CLRIJECCPRMDIFZJIF}

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

2 papers in Pith

The one clean qubit model without entanglement is classically simulable

A collider as a quantum computer

Receipt and verification

First computed	2026-07-04T15:36:42.329303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad34f2e09f12e28490427c5834172941552a4e6f4b644d4e348b0eb027dca2d7

Aliases

arxiv: quant-ph/9802037 · arxiv_version: quant-ph/9802037v1 · doi: 10.48550/arxiv.quant-ph/9802037 · pith_short_12: VU2PFYE7CLRI · pith_short_16: VU2PFYE7CLRIJECC · pith_short_8: VU2PFYE7

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/VU2PFYE7CLRIJECCPRMDIFZJIF \
  | 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: ad34f2e09f12e28490427c5834172941552a4e6f4b644d4e348b0eb027dca2d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf641f3bcd335ffa6d6087c233b2ca10673881eb2e7163ec71ad6c5b819e622c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1998-02-12T21:25:08Z",
    "title_canon_sha256": "9773a12a9f6f7f6293289ac246e5dc6d8304b87626828efbaf8bd9d5ff6428c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9802037",
    "kind": "arxiv",
    "version": 1
  }
}