Pith Number

pith:FXYCNYEN

pith:2019:FXYCNYENNNTPX3GR4NBJMB3EZB

not attested not anchored not stored refs pending

Homotopy properties of smooth functions on the M\"obius band

Iryna Kuznietsova, Sergiy Maksymenko

arxiv:1901.03528 v1 · 2019-01-11 · 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{FXYCNYENNNTPX3GR4NBJMB3EZB}

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	2026-05-17T23:56:31.001004Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2df026e08d6b66fbecd1e342960764c85a8f9c6cedef68e6a9d2a730057afe9d

Aliases

arxiv: 1901.03528 · arxiv_version: 1901.03528v1 · doi: 10.48550/arxiv.1901.03528 · pith_short_12: FXYCNYENNNTP · pith_short_16: FXYCNYENNNTPX3GR · pith_short_8: FXYCNYEN

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/FXYCNYENNNTPX3GR4NBJMB3EZB \
  | 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: 2df026e08d6b66fbecd1e342960764c85a8f9c6cedef68e6a9d2a730057afe9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58bf4825151535e7015279dba4e27e69d0a7fae14ec0246937986320bce50313",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2019-01-11T09:46:18Z",
    "title_canon_sha256": "c0bd115551426e1607c016cd754526dfa3e4c758350d2d859d2aa3c0ef2c80c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03528",
    "kind": "arxiv",
    "version": 1
  }
}