Pith Number

pith:LIGN6QYA

pith:2018:LIGN6QYAYSFAQETJQP7JYO3V3R

not attested not anchored not stored refs pending

Drawing a Rooted Tree as a Rooted $y-$Monotone Minimum Spanning Tree

Konstantinos Mastakas

arxiv:1806.04720 v1 · 2018-06-12 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LIGN6QYAYSFAQETJQP7JYO3V3R}

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	2026-05-18T00:13:21.036604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a0cdf4300c48a08126983fe9c3b75dc6985bf11e807364ee86eccfb759a0bbe

Aliases

arxiv: 1806.04720 · arxiv_version: 1806.04720v1 · doi: 10.48550/arxiv.1806.04720 · pith_short_12: LIGN6QYAYSFA · pith_short_16: LIGN6QYAYSFAQETJ · pith_short_8: LIGN6QYA

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/LIGN6QYAYSFAQETJQP7JYO3V3R \
  | 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: 5a0cdf4300c48a08126983fe9c3b75dc6985bf11e807364ee86eccfb759a0bbe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "638e71aed1788c629f262545e694a1daa133d5b748ced2a926d3f9b6fec7304b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2018-06-12T19:03:53Z",
    "title_canon_sha256": "4bd206338f4b7249afdc967b9e6a07ec22e2137ee6283e17175278be8e1a81ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.04720",
    "kind": "arxiv",
    "version": 1
  }
}