pith. sign in
Pith Number

pith:WDF7J45T

pith:2017:WDF7J45TCYZTK3LHUGHSUKXKRO
not attested not anchored not stored refs pending

The cobordism hypothesis

David Ayala, John Francis

arxiv:1705.02240 v2 · 2017-05-05 · math.AT · math.GT · math.QA

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{WDF7J45TCYZTK3LHUGHSUKXKRO}

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.

Cited by

2 papers in Pith

Receipt and verification
First computed 2026-05-18T00:37:52.461903Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

b0cbf4f3b31633356d67a18f2a2aea8ba651d2b72f5bfae1a2d7f08efa0f87da

Aliases

arxiv: 1705.02240 · arxiv_version: 1705.02240v2 · doi: 10.48550/arxiv.1705.02240 · pith_short_12: WDF7J45TCYZT · pith_short_16: WDF7J45TCYZTK3LH · pith_short_8: WDF7J45T
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/WDF7J45TCYZTK3LHUGHSUKXKRO \
  | 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: b0cbf4f3b31633356d67a18f2a2aea8ba651d2b72f5bfae1a2d7f08efa0f87da
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "79581b21d1b7230abeeb9502d464435ccbace4749baecfc84c6868c74beec687",
    "cross_cats_sorted": [
      "math.GT",
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-05-05T14:41:00Z",
    "title_canon_sha256": "0d4b2fbe863831748dd6d45f5f718303a88f83d936bb4898ccc4b02071d8022a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.02240",
    "kind": "arxiv",
    "version": 2
  }
}