Pith Number

pith:CRZTWAEM

pith:2017:CRZTWAEMF2AWMCQSO7AQGKUD7T

not attested not anchored not stored refs pending

Tree Edit Distance Cannot be Computed in Strongly Subcubic Time (unless APSP can)

Karl Bringmann, Oren Weimann, Pawe{\l} Gawrychowski, Shay Mozes

arxiv:1703.08940 v1 · 2017-03-27 · 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{CRZTWAEMF2AWMCQSO7AQGKUD7T}

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	2026-05-18T00:47:55.111394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14733b008c2e81660a1277c1032a83fcd3723d020275e9d174418328d123da86

Aliases

arxiv: 1703.08940 · arxiv_version: 1703.08940v1 · doi: 10.48550/arxiv.1703.08940 · pith_short_12: CRZTWAEMF2AW · pith_short_16: CRZTWAEMF2AWMCQS · pith_short_8: CRZTWAEM

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/CRZTWAEMF2AWMCQSO7AQGKUD7T \
  | 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: 14733b008c2e81660a1277c1032a83fcd3723d020275e9d174418328d123da86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "658f734dfce32fe12f0dbf35568ad211f6abb6457af55bede43f8cab216d9e73",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-03-27T05:48:36Z",
    "title_canon_sha256": "40175f2b854385e0bd10015f789b610fabb6d54f7d90bed800fed641cf9c0ec4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.08940",
    "kind": "arxiv",
    "version": 1
  }
}