Pith Number

pith:O7L3NZQ7

pith:2013:O7L3NZQ73JPGNDGZNYCG7WPPQO

not attested not anchored not stored refs pending

Stratified and unstratified bordism of pseudomanifolds

Greg Friedman

arxiv:1311.2633 v4 · 2013-11-11 · math.GT · 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{O7L3NZQ73JPGNDGZNYCG7WPPQO}

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	2026-05-17T23:57:21.981438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77d7b6e61fda5e668cd96e046fd9ef83afe4cb75ced2a7e77448a8aca3912025

Aliases

arxiv: 1311.2633 · arxiv_version: 1311.2633v4 · doi: 10.48550/arxiv.1311.2633 · pith_short_12: O7L3NZQ73JPG · pith_short_16: O7L3NZQ73JPGNDGZ · pith_short_8: O7L3NZQ7

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/O7L3NZQ73JPGNDGZNYCG7WPPQO \
  | 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: 77d7b6e61fda5e668cd96e046fd9ef83afe4cb75ced2a7e77448a8aca3912025

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13afc6629d9fd1bd6b3f8e09a5691f2d6157fed33d1d5faf3d8b448110e3ec4e",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2013-11-11T22:27:19Z",
    "title_canon_sha256": "6a52bb73f93ca36f935c41279dd645a22b6a32f73bd70bf34cbda5abdc65733e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.2633",
    "kind": "arxiv",
    "version": 4
  }
}