Pith Number

pith:FNK5SI7G

pith:2017:FNK5SI7GL3QVSA7OJXHUTXQ4R4

not attested not anchored not stored refs pending

Improved Methods for Computing Distances between Unordered Trees Using Integer Programming

Akihiro Yamamoto, Eunpyeong Hong, Yasuaki Kobayashi

arxiv:1706.03473 v1 · 2017-06-12 · 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{FNK5SI7GL3QVSA7OJXHUTXQ4R4}

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	2026-05-18T00:42:34.621968Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b55d923e65ee15903ee4dcf49de1c8f0e6076002102ad7b69bd7b5dfa1fb1c7

Aliases

arxiv: 1706.03473 · arxiv_version: 1706.03473v1 · doi: 10.48550/arxiv.1706.03473 · pith_short_12: FNK5SI7GL3QV · pith_short_16: FNK5SI7GL3QVSA7O · pith_short_8: FNK5SI7G

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/FNK5SI7GL3QVSA7OJXHUTXQ4R4 \
  | 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: 2b55d923e65ee15903ee4dcf49de1c8f0e6076002102ad7b69bd7b5dfa1fb1c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf8b499cf8742f84a5afe018a07a1edf6e1a77b4480edd98695d08c03adcd3f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-06-12T05:47:23Z",
    "title_canon_sha256": "cd61d2ee93e623e39bb7983c198adbe78e9804b573590b3c4276ae1cfc7d2e0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.03473",
    "kind": "arxiv",
    "version": 1
  }
}