Pith Number

pith:YAWV6F7E

pith:2018:YAWV6F7E6UUMUCQQAS4JZDXMUT

not attested not anchored not stored refs pending

Counting Connected Graphs without Overlapping Cycles

Richard J. Mathar

arxiv:1808.06264 v1 · 2018-08-19 · 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{YAWV6F7E6UUMUCQQAS4JZDXMUT}

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	2026-05-18T00:07:45.534225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c02d5f17e4f528ca0a1004b89c8eeca4ff3e912a62c7694c419ec51a561126d6

Aliases

arxiv: 1808.06264 · arxiv_version: 1808.06264v1 · doi: 10.48550/arxiv.1808.06264 · pith_short_12: YAWV6F7E6UUM · pith_short_16: YAWV6F7E6UUMUCQQ · pith_short_8: YAWV6F7E

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/YAWV6F7E6UUMUCQQAS4JZDXMUT \
  | 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: c02d5f17e4f528ca0a1004b89c8eeca4ff3e912a62c7694c419ec51a561126d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfba379a7a2d359a4a65509e898929565abdc62d30a91adc21ded2ca8c6ce879",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-08-19T21:54:38Z",
    "title_canon_sha256": "7dced48d89bef5d4bf073b38375ac7c00e6e01e607fecee7b7dfac3edd03653c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.06264",
    "kind": "arxiv",
    "version": 1
  }
}