Pith Number

pith:7JQFAOJE

pith:2013:7JQFAOJELVD2MMHUAPLYOBEKAW

not attested not anchored not stored refs pending

Fundamental groups, homology equivalences and one-sided h-cobordisms

Shengkui Ye, Yang Su

arxiv:1301.6869 v2 · 2013-01-29 · math.GT · math.AT · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7JQFAOJELVD2MMHUAPLYOBEKAW}

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	2026-05-18T02:25:32.864298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa605039245d47a630f403d787048a05b9afd1510899a14e3fde843b8631cd1a

Aliases

arxiv: 1301.6869 · arxiv_version: 1301.6869v2 · doi: 10.48550/arxiv.1301.6869 · pith_short_12: 7JQFAOJELVD2 · pith_short_16: 7JQFAOJELVD2MMHU · pith_short_8: 7JQFAOJE

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/7JQFAOJELVD2MMHUAPLYOBEKAW \
  | 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: fa605039245d47a630f403d787048a05b9afd1510899a14e3fde843b8631cd1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea0f3a080b3afe50c9476c48ca8edd8b340ec03a46a9960dd37d5a19def250f0",
    "cross_cats_sorted": [
      "math.AT",
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2013-01-29T09:17:49Z",
    "title_canon_sha256": "dec18601b847092111a532eeb73f951c69aeff92a3176604d7515cd26b6367d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6869",
    "kind": "arxiv",
    "version": 2
  }
}