Pith Number

pith:6YNPDRN6

pith:2017:6YNPDRN6PK32OLOTWHZT6VWBG4

not attested not anchored not stored refs pending

Enumeration of $r$-regular Maps on the Torus. Part II: Enumeration of Unsensed Maps

Alexander Omelchenko, Evgeniy Krasko

arxiv:1709.03230 v1 · 2017-09-11 · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6YNPDRN6PK32OLOTWHZT6VWBG4}

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	2026-05-18T00:35:38.945721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f61af1c5be7ab7a72dd3b1f33f56c1373e3f004c4c627f30d7e63061a603238e

Aliases

arxiv: 1709.03230 · arxiv_version: 1709.03230v1 · doi: 10.48550/arxiv.1709.03230 · pith_short_12: 6YNPDRN6PK32 · pith_short_16: 6YNPDRN6PK32OLOT · pith_short_8: 6YNPDRN6

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/6YNPDRN6PK32OLOTWHZT6VWBG4 \
  | 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: f61af1c5be7ab7a72dd3b1f33f56c1373e3f004c4c627f30d7e63061a603238e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a64c57fd471d981f0a7da7048c6c10b31db527ed6088fc318a81aac7adf70a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-09-11T03:28:10Z",
    "title_canon_sha256": "0556e571940f838319bdc3936331568705f22031ff47c28810c5964c2f880aeb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.03230",
    "kind": "arxiv",
    "version": 1
  }
}