Pith Number

pith:7XJJ3DCH

pith:2025:7XJJ3DCHLGEWXVDP7KBWKFGRDP

not attested not anchored not stored refs pending

Pretty-good simulation of all quantum measurements by projective measurements

Micha{\l} Kotowski, Micha{\l} Oszmaniec

arxiv:2501.09339 v1 · 2025-01-16 · quant-ph · math-ph · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7XJJ3DCHLGEWXVDP7KBWKFGRDP}

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	2026-07-05T10:01:45.416280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdd29d8c4759896bd46ffa836514d11bca10005a0dba913479937ef10505ef7d

Aliases

arxiv: 2501.09339 · arxiv_version: 2501.09339v1 · doi: 10.48550/arxiv.2501.09339 · pith_short_12: 7XJJ3DCHLGEW · pith_short_16: 7XJJ3DCHLGEWXVDP · pith_short_8: 7XJJ3DCH

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/7XJJ3DCHLGEWXVDP7KBWKFGRDP \
  | 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: fdd29d8c4759896bd46ffa836514d11bca10005a0dba913479937ef10505ef7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1ee96f2da399cdee6df123da11f7bd29579d5f4bc35032e375aa1b28199fbbe",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-01-16T07:47:24Z",
    "title_canon_sha256": "9c088bb499481e0136ca744026bdf970203caae7b118b48a7f4198628ac5911a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.09339",
    "kind": "arxiv",
    "version": 1
  }
}