Pith Number

pith:WKSZDEOO

pith:2014:WKSZDEOODYQ5GS2A73OMUTRJYS

not attested not anchored not stored refs pending

Structure of the fundamental groups of orbits of smooth functions on surfaces

Sergiy Maksymenko

arxiv:1408.2612 v2 · 2014-08-12 · math.GT · 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{WKSZDEOODYQ5GS2A73OMUTRJYS}

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	2026-05-18T02:44:48.840368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2a59191ce1e21d34b40fedcca4e29c4b48328634c3a0b462ccbb5e9d337e7fc

Aliases

arxiv: 1408.2612 · arxiv_version: 1408.2612v2 · doi: 10.48550/arxiv.1408.2612 · pith_short_12: WKSZDEOODYQ5 · pith_short_16: WKSZDEOODYQ5GS2A · pith_short_8: WKSZDEOO

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/WKSZDEOODYQ5GS2A73OMUTRJYS \
  | 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: b2a59191ce1e21d34b40fedcca4e29c4b48328634c3a0b462ccbb5e9d337e7fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3e9ae859930d8ec34d1b6d0d2031fb7a90ba1fbe228a858657cc4d23fea7601",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2014-08-12T03:29:34Z",
    "title_canon_sha256": "071a88877cff73aa791e3603eacb6f20be5f0a03d543a3e3edfced7ea62c4cd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2612",
    "kind": "arxiv",
    "version": 2
  }
}