Pith Number

pith:ISWTIQQY

pith:2002:ISWTIQQYAQADOCDPD4F57ZB7SU

not attested not anchored not stored refs pending

Quantum SU(2) faithfully detects mapping class groups modulo center

Kevin Walker, Michael H. Freedman, Zhenghan Wang

arxiv:math/0209150 v4 · 2002-09-12 · math.GT · 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{ISWTIQQYAQADOCDPD4F57ZB7SU}

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	2026-05-18T02:38:00.569152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44ad344218040037086f1f0bdfe43f95000575ec6a9ff71005db4a51c6d72496

Aliases

arxiv: math/0209150 · arxiv_version: math/0209150v4 · doi: 10.48550/arxiv.math/0209150 · pith_short_12: ISWTIQQYAQAD · pith_short_16: ISWTIQQYAQADOCDP · pith_short_8: ISWTIQQY

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/ISWTIQQYAQADOCDPD4F57ZB7SU \
  | 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: 44ad344218040037086f1f0bdfe43f95000575ec6a9ff71005db4a51c6d72496

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "625b419a626b0c41ba725af24719570624b907e4471bcb3986dabb8728ee02f6",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2002-09-12T16:36:24Z",
    "title_canon_sha256": "072b0188928690ee0acd2d7e80aee1661027037683f73784837f6179c047e60a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0209150",
    "kind": "arxiv",
    "version": 4
  }
}