Pith Number

pith:UNLJRKSI

pith:2014:UNLJRKSIKW6D3XDVWQORSZMOZ2

not attested not anchored not stored refs pending

Fast Algorithms for Constructing Maximum Entropy Summary Trees

Howard Karloff, Richard Cole

arxiv:1404.5660 v1 · 2014-04-22 · 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{UNLJRKSIKW6D3XDVWQORSZMOZ2}

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	2026-05-18T02:53:28.234389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a35698aa4855bc3ddc75b41d19658ece92265275ddf3d3585db67a433ef40711

Aliases

arxiv: 1404.5660 · arxiv_version: 1404.5660v1 · doi: 10.48550/arxiv.1404.5660 · pith_short_12: UNLJRKSIKW6D · pith_short_16: UNLJRKSIKW6D3XDV · pith_short_8: UNLJRKSI

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/UNLJRKSIKW6D3XDVWQORSZMOZ2 \
  | 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: a35698aa4855bc3ddc75b41d19658ece92265275ddf3d3585db67a433ef40711

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0231c539b8816958e316171d49fe8d8c492dcc02392caef63fd6c24dad5eb20",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-04-22T21:58:17Z",
    "title_canon_sha256": "c877f125d8b7539b8f0ffdfbd16603c5b7fa984dabcf175f621dea69d1a9086b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.5660",
    "kind": "arxiv",
    "version": 1
  }
}