Pith Number

pith:I2DIA2MD

pith:2020:I2DIA2MDELH7WUP2A6CUYWUFA2

not attested not anchored not stored refs pending

Efficient and Optimal Algorithms for Tree Summarization with Weighted Terminologies

Byron Choi, Jianliang Xu, Jiming Liu, William K. Cheung, Xin Huang, Xuliang Zhu, Yanchun Zhang

arxiv:2008.03053 v2 · 2020-08-07 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I2DIA2MDELH7WUP2A6CUYWUFA2}

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	2026-07-05T03:22:32.630702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

468680698322cffb51fa07854c5a850682e4d591811609edb657b4a9704d0ead

Aliases

arxiv: 2008.03053 · arxiv_version: 2008.03053v2 · doi: 10.48550/arxiv.2008.03053 · pith_short_12: I2DIA2MDELH7 · pith_short_16: I2DIA2MDELH7WUP2 · pith_short_8: I2DIA2MD

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/I2DIA2MDELH7WUP2A6CUYWUFA2 \
  | 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: 468680698322cffb51fa07854c5a850682e4d591811609edb657b4a9704d0ead

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61f00d3532ac7abdd6a1d6bb1994c739afa8572685381ece6fbb24aae59a05ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2020-08-07T09:19:50Z",
    "title_canon_sha256": "4e331cc7c78074a97dd03f27d34bd36970284be143bcfe74d1c2d4486853b0df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.03053",
    "kind": "arxiv",
    "version": 2
  }
}