Pith Number

pith:2VXBZRXQ

pith:2011:2VXBZRXQJUIT2W2K4XTMFUSX6J

not attested not anchored not stored refs pending

A remark on the Isomorphism Conjectures

Crichton Ogle, Shengkui Ye

arxiv:1109.6356 v5 · 2011-09-28 · math.KT · 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{2VXBZRXQJUIT2W2K4XTMFUSX6J}

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	2026-05-18T00:49:35.470896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d56e1cc6f04d113d5b4ae5e6c2d257f243719ffdb8ed2ab33e841301539c60c1

Aliases

arxiv: 1109.6356 · arxiv_version: 1109.6356v5 · doi: 10.48550/arxiv.1109.6356 · pith_short_12: 2VXBZRXQJUIT · pith_short_16: 2VXBZRXQJUIT2W2K · pith_short_8: 2VXBZRXQ

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/2VXBZRXQJUIT2W2K4XTMFUSX6J \
  | 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: d56e1cc6f04d113d5b4ae5e6c2d257f243719ffdb8ed2ab33e841301539c60c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1768fceafe3a89a3eb1f939ea4a191552db9b04f670f5f6b06d7ff437e5e7c97",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2011-09-28T21:05:34Z",
    "title_canon_sha256": "b1ff0bfcf1a5ff5b2df82a869707acc844428d0dc631d1aa60f9353ce09e89dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6356",
    "kind": "arxiv",
    "version": 5
  }
}