Pith Number

pith:UZHJ5TIK

pith:2017:UZHJ5TIKHR6TLX7BFU3M4IOKFO

not attested not anchored not stored refs pending

Enumeration of $r$-regular Maps on the Torus. Part I: Enumeration of Rooted and Sensed Maps

Alexander Omelchenko, Evgeniy Krasko

arxiv:1709.03225 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{UZHJ5TIKHR6TLX7BFU3M4IOKFO}

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	2026-05-18T00:35:38.968990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a64e9ecd0a3c7d35dfe12d36ce21ca2b9ae5812fb3aca7fb55c6d88bc2041c42

Aliases

arxiv: 1709.03225 · arxiv_version: 1709.03225v1 · doi: 10.48550/arxiv.1709.03225 · pith_short_12: UZHJ5TIKHR6T · pith_short_16: UZHJ5TIKHR6TLX7B · pith_short_8: UZHJ5TIK

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/UZHJ5TIKHR6TLX7BFU3M4IOKFO \
  | 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: a64e9ecd0a3c7d35dfe12d36ce21ca2b9ae5812fb3aca7fb55c6d88bc2041c42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a89959378ca2d66d4f96bb09f38157cfb59c51e57ceab01c82a75aa01f06f41",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-09-11T03:13:21Z",
    "title_canon_sha256": "29a5eee9d07989a0aeefae1d866c8891221018ff0be4cbde9dffee4066662a49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.03225",
    "kind": "arxiv",
    "version": 1
  }
}