Pith Number

pith:4ZSKXHIJ

pith:2005:4ZSKXHIJ6Q5DVALWHFHROOO7FJ

not attested not anchored not stored refs pending

Proof rules for purely quantum programs

Mingsheng Ying, Runyao Duan, Yuan Feng, Zhengfeng Ji

arxiv:cs/0507043 v3 · 2005-07-18 · cs.PL · 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{4ZSKXHIJ6Q5DVALWHFHROOO7FJ}

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	2026-07-04T14:50:31.650283Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e664ab9d09f43a3a8176394f1739df2a550fa8f3a8d616b4c36180d4b5695592

Aliases

arxiv: cs/0507043 · arxiv_version: cs/0507043v3 · doi: 10.48550/arxiv.cs/0507043 · pith_short_12: 4ZSKXHIJ6Q5D · pith_short_16: 4ZSKXHIJ6Q5DVALW · pith_short_8: 4ZSKXHIJ

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/4ZSKXHIJ6Q5DVALWHFHROOO7FJ \
  | 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: e664ab9d09f43a3a8176394f1739df2a550fa8f3a8d616b4c36180d4b5695592

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6da57dc75546411175b09a5f9829442b877b398b2e7d4ed2af01b9ae86a1258b",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "",
    "primary_cat": "cs.PL",
    "submitted_at": "2005-07-18T13:06:13Z",
    "title_canon_sha256": "83394c91d7f743204bff7fc42cf0d9d5a604827acdb162d0241361fe60ff2930"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0507043",
    "kind": "arxiv",
    "version": 3
  }
}