Pith Number

pith:OWXTA6DM

pith:2013:OWXTA6DMLG6HZRAAKGBNKPZZA4

not attested not anchored not stored refs pending

Cobordism categories of manifolds with Baas-Sullivan singularities, Part 2

Nathan Perlmutter

arxiv:1306.4045 v3 · 2013-06-18 · math.AT · math.DG · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OWXTA6DMLG6HZRAAKGBNKPZZA4}

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	2026-05-18T02:31:27.542390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75af30786c59bc7cc4005182d53f39071c2a73c1bb5f7a2d139883342e7449c9

Aliases

arxiv: 1306.4045 · arxiv_version: 1306.4045v3 · doi: 10.48550/arxiv.1306.4045 · pith_short_12: OWXTA6DMLG6H · pith_short_16: OWXTA6DMLG6HZRAA · pith_short_8: OWXTA6DM

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/OWXTA6DMLG6HZRAAKGBNKPZZA4 \
  | 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: 75af30786c59bc7cc4005182d53f39071c2a73c1bb5f7a2d139883342e7449c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e7206f943ba541bc9c695e02a5be6e4956eae568210906fd53fbcdfa2a8c2b2",
    "cross_cats_sorted": [
      "math.DG",
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2013-06-18T00:08:45Z",
    "title_canon_sha256": "9416d2130f466a9f6e03e500846be404a829be18af6d9f82660cd12fa630d776"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.4045",
    "kind": "arxiv",
    "version": 3
  }
}