Pith Number

pith:LYMTYMTL

pith:2019:LYMTYMTLVMEQOAF6ZXRKNEORXR

not attested not anchored not stored refs pending

Complexity of Modification Problems for Reciprocal Best Match Graphs

Manuela Gei{\ss}, Marc Hellmuth, Peter F. Stadler

arxiv:1907.08865 v1 · 2019-07-20 · cs.CC · cs.DS · 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{LYMTYMTLVMEQOAF6ZXRKNEORXR}

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	2026-05-17T23:40:02.950934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e193c326bab090700becde2a691d1bc737940127284074afc831f92d27f6982

Aliases

arxiv: 1907.08865 · arxiv_version: 1907.08865v1 · doi: 10.48550/arxiv.1907.08865 · pith_short_12: LYMTYMTLVMEQ · pith_short_16: LYMTYMTLVMEQOAF6 · pith_short_8: LYMTYMTL

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/LYMTYMTLVMEQOAF6ZXRKNEORXR \
  | 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: 5e193c326bab090700becde2a691d1bc737940127284074afc831f92d27f6982

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65880c67fe3ae8fdcd3afa73e1dd3693df6f86f3b8cd9d29cb3cc00701c3e741",
    "cross_cats_sorted": [
      "cs.DS",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2019-07-20T20:22:08Z",
    "title_canon_sha256": "06329d572590e0bc33cf59dd5cc0ebd1272c1bd2a8c7835cdbb803d6124eef31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.08865",
    "kind": "arxiv",
    "version": 1
  }
}