Pith Number

pith:PFZMHNPW

pith:2004:PFZMHNPWQ2AYMCSULU52EJWQCZ

not attested not anchored not stored refs pending

Measurement-Based Quantum Turing Machines and Questions of Universalities

Philippe Jorrand, Simon Perdrix

arxiv:quant-ph/0402156 v1 · 2004-02-20 · 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{PFZMHNPWQ2AYMCSULU52EJWQCZ}

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	2026-05-18T01:05:03.618311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7972c3b5f68681860a545d3ba226d01663292902a72286210d504b60c4d34c7a

Aliases

arxiv: quant-ph/0402156 · arxiv_version: quant-ph/0402156v1 · doi: 10.48550/arxiv.quant-ph/0402156 · pith_short_12: PFZMHNPWQ2AY · pith_short_16: PFZMHNPWQ2AYMCSU · pith_short_8: PFZMHNPW

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/PFZMHNPWQ2AYMCSULU52EJWQCZ \
  | 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: 7972c3b5f68681860a545d3ba226d01663292902a72286210d504b60c4d34c7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d9369c31c053ad3cd1d0a26ee4802eff23a7bfadd4d23184075d65868178f0c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-02-20T15:54:43Z",
    "title_canon_sha256": "2f38e3288207d3db329843ee2a32d1f395eafd4501314d35b1ae2ce4f78052df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0402156",
    "kind": "arxiv",
    "version": 1
  }
}