Pith Number

pith:QXCUDSGR

pith:2010:QXCUDSGRBV4BGRPWCBG26C5LDU

not attested not anchored not stored refs pending

The blob complex

Kevin Walker, Scott Morrison

arxiv:1009.5025 v3 · 2010-09-25 · math.AT · math.CT · math.GT · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QXCUDSGRBV4BGRPWCBG26C5LDU}

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.

Cited by

1 paper in Pith

Defects in skein theory and TQFT

Receipt and verification

First computed	2026-05-18T02:38:18.392670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85c541c8d10d781345f6104daf0bab1d23a9d4a8a8eaaf7eaf0a6f6a443aeda5

Aliases

arxiv: 1009.5025 · arxiv_version: 1009.5025v3 · doi: 10.48550/arxiv.1009.5025 · pith_short_12: QXCUDSGRBV4B · pith_short_16: QXCUDSGRBV4BGRPW · pith_short_8: QXCUDSGR

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/QXCUDSGRBV4BGRPWCBG26C5LDU \
  | 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: 85c541c8d10d781345f6104daf0bab1d23a9d4a8a8eaaf7eaf0a6f6a443aeda5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "650078c9af5bb846927147539dadac538e5eac6eb5e55a216f51e934200d3d46",
    "cross_cats_sorted": [
      "math.CT",
      "math.GT",
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2010-09-25T17:38:14Z",
    "title_canon_sha256": "65df29a2d32679564dd2ae361ae729d81901735bae6a7a37a26ecd9139e9d052"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.5025",
    "kind": "arxiv",
    "version": 3
  }
}