Pith Number

pith:443LMKZT

pith:2014:443LMKZTPGYWFH6WBO2DDICTWJ

not attested not anchored not stored refs pending

Homotopy properties of spaces of smooth functions on 2-torus

Bogdan Feshchenko, Sergiy Maksymenko

arxiv:1401.2296 v1 · 2014-01-10 · 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{443LMKZTPGYWFH6WBO2DDICTWJ}

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	2026-05-18T03:02:45.749898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e736b62b3379b1629fd60bb431a053b26d2384e899ac6509090a1832b93caa62

Aliases

arxiv: 1401.2296 · arxiv_version: 1401.2296v1 · doi: 10.48550/arxiv.1401.2296 · pith_short_12: 443LMKZTPGYW · pith_short_16: 443LMKZTPGYWFH6W · pith_short_8: 443LMKZT

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/443LMKZTPGYWFH6WBO2DDICTWJ \
  | 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: e736b62b3379b1629fd60bb431a053b26d2384e899ac6509090a1832b93caa62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "252593864919aac993c08105fc4a71987d2eab7435565755d899cb6f3b5f449a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-01-10T12:01:52Z",
    "title_canon_sha256": "409bcb4b0cdb5ee4110313e6774af2477b155e8ccbbf23ee581366a2c4844fb3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.2296",
    "kind": "arxiv",
    "version": 1
  }
}