Pith Number

pith:LBUPXEYH

pith:2019:LBUPXEYH4QIQLCQWNBBCQXZO5Z

not attested not anchored not stored refs pending

Splaying Preorders and Postorders

Caleb C. Levy, Robert E. Tarjan

arxiv:1907.06309 v1 · 2019-07-15 · 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{LBUPXEYH4QIQLCQWNBBCQXZO5Z}

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	2026-05-17T23:40:37.969373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5868fb9307e411058a166842285f2eee69d2d8c5295d1ec6329eed9a545a16d3

Aliases

arxiv: 1907.06309 · arxiv_version: 1907.06309v1 · doi: 10.48550/arxiv.1907.06309 · pith_short_12: LBUPXEYH4QIQ · pith_short_16: LBUPXEYH4QIQLCQW · pith_short_8: LBUPXEYH

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/LBUPXEYH4QIQLCQWNBBCQXZO5Z \
  | 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: 5868fb9307e411058a166842285f2eee69d2d8c5295d1ec6329eed9a545a16d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8b70a778acb3d52583e753d6cd91076a07db5fab5ae48ebafc9f6d8b887dfb4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-07-15T01:45:56Z",
    "title_canon_sha256": "4d04d23d13cfa9ab5ffa078baaf3d880d87adf8e2fabc2bf07ae5e591053c2b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.06309",
    "kind": "arxiv",
    "version": 1
  }
}