Pith Number

pith:IJ6UFFHP

pith:2011:IJ6UFFHPLGYJOXP4I2NNY5GDZM

not attested not anchored not stored refs pending

Topological Complexity of H-Spaces

Gregory Lupton, J\'er\^ome Scherer

arxiv:1106.3399 v1 · 2011-06-17 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IJ6UFFHPLGYJOXP4I2NNY5GDZM}

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	2026-05-18T04:19:52.843856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

427d4294ef59b0975dfc469adc74c3cb0a56b7800fa434ff7f9a9bbbda6a1508

Aliases

arxiv: 1106.3399 · arxiv_version: 1106.3399v1 · doi: 10.48550/arxiv.1106.3399 · pith_short_12: IJ6UFFHPLGYJ · pith_short_16: IJ6UFFHPLGYJOXP4 · pith_short_8: IJ6UFFHP

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/IJ6UFFHPLGYJOXP4I2NNY5GDZM \
  | 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: 427d4294ef59b0975dfc469adc74c3cb0a56b7800fa434ff7f9a9bbbda6a1508

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4341c9453a75a39ca8040ec2e766910b430e6920aa9b228723d167ae393a07db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2011-06-17T07:16:09Z",
    "title_canon_sha256": "9787acc1fcc920982e5cdd2d2087bd3002dc9dd781bf53f0d69508cd162e255c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.3399",
    "kind": "arxiv",
    "version": 1
  }
}