Pith Number

pith:XEGMPHUH

pith:2003:XEGMPHUHIXOYJXJIPRULXWE24E

not attested not anchored not stored refs pending

Identity check is QMA-complete

Dominik Janzing, Pawel Wocjan, Thomas Beth

arxiv:quant-ph/0305050 v1 · 2003-05-09 · 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{XEGMPHUHIXOYJXJIPRULXWE24E}

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	2026-05-18T01:05:04.014652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b90cc79e8745dd84dd287c68bbd89ae105d4f58a97df6340a2a7d40f2fb944a9

Aliases

arxiv: quant-ph/0305050 · arxiv_version: quant-ph/0305050v1 · doi: 10.48550/arxiv.quant-ph/0305050 · pith_short_12: XEGMPHUHIXOY · pith_short_16: XEGMPHUHIXOYJXJI · pith_short_8: XEGMPHUH

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/XEGMPHUHIXOYJXJIPRULXWE24E \
  | 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: b90cc79e8745dd84dd287c68bbd89ae105d4f58a97df6340a2a7d40f2fb944a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37a0d612620a11388f4be23a7f4f89bb61ac8042e41a1c6067cadce94268ee0b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2003-05-09T12:02:37Z",
    "title_canon_sha256": "5cb13f9cfc099785fecc2b5c946e8531e3fd10be21797b7c000e1057a94b2e29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0305050",
    "kind": "arxiv",
    "version": 1
  }
}