Pith Number

pith:NS24MKXY

pith:2016:NS24MKXYMH5IGYJMN476MG2UR6

not attested not anchored not stored refs pending

A mechanization of the Blakers-Massey connectivity theorem in Homotopy Type Theory

Dan Licata, Eric Finster, Kuen-Bang Hou (Favonia), Peter LeFanu Lumsdaine

arxiv:1605.03227 v1 · 2016-05-10 · cs.LO · 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{NS24MKXYMH5IGYJMN476MG2UR6}

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	2026-05-18T01:15:05.920672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cb5c62af861fa83612c6f3fe61b548fa24b3ca60be0061aa47617b5e04991c7

Aliases

arxiv: 1605.03227 · arxiv_version: 1605.03227v1 · doi: 10.48550/arxiv.1605.03227 · pith_short_12: NS24MKXYMH5I · pith_short_16: NS24MKXYMH5IGYJM · pith_short_8: NS24MKXY

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/NS24MKXYMH5IGYJMN476MG2UR6 \
  | 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: 6cb5c62af861fa83612c6f3fe61b548fa24b3ca60be0061aa47617b5e04991c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58111e2e63b01d8ad121ede38fb422dc30b307e318720f921669ed6fbe2afbf5",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2016-05-10T22:13:17Z",
    "title_canon_sha256": "f0cdb28036091d7e9b97e7e5ae9f1a634fef402e58f0a576ed062b1ee82ed28b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.03227",
    "kind": "arxiv",
    "version": 1
  }
}