Pith Number

pith:DPEUA3O5

pith:2012:DPEUA3O5EZQHLGT5W2OXWIU5UP

not attested not anchored not stored refs pending

Fast Monotone Summation over Disjoint Sets

Janne H. Korhonen, Mikko Koivisto, Petteri Kaski

arxiv:1208.0554 v1 · 2012-08-02 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DPEUA3O5EZQHLGT5W2OXWIU5UP}

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	2026-05-18T03:49:33.789687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bc9406ddd2660759a7db69d7b229da3db389a84760a4d245689da74d92e214d

Aliases

arxiv: 1208.0554 · arxiv_version: 1208.0554v1 · doi: 10.48550/arxiv.1208.0554 · pith_short_12: DPEUA3O5EZQH · pith_short_16: DPEUA3O5EZQHLGT5 · pith_short_8: DPEUA3O5

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/DPEUA3O5EZQHLGT5W2OXWIU5UP \
  | 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: 1bc9406ddd2660759a7db69d7b229da3db389a84760a4d245689da74d92e214d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15d5e377c039407757e897726970d4117cfa5290af883cb0448f08ffd8b8e052",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-08-02T17:38:41Z",
    "title_canon_sha256": "38533355f708e03954cc8321e380bb9e6df3e3d1b71afb36d1c05fd46e9c3001"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0554",
    "kind": "arxiv",
    "version": 1
  }
}