Pith Number

pith:NMT75JBC

pith:2015:NMT75JBCRMPSHRBJLSS3Z4UYMR

not attested not anchored not stored refs pending

Optimum-width upward drawings of trees

Therese Biedl

arxiv:1506.02096 v2 · 2015-06-06 · 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{NMT75JBCRMPSHRBJLSS3Z4UYMR}

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	2026-05-18T01:27:53.994402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b27fea4228b1f23c4295ca5bcf298647976f492f583fe68ae719e4ff5f7615b

Aliases

arxiv: 1506.02096 · arxiv_version: 1506.02096v2 · doi: 10.48550/arxiv.1506.02096 · pith_short_12: NMT75JBCRMPS · pith_short_16: NMT75JBCRMPSHRBJ · pith_short_8: NMT75JBC

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/NMT75JBCRMPSHRBJLSS3Z4UYMR \
  | 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: 6b27fea4228b1f23c4295ca5bcf298647976f492f583fe68ae719e4ff5f7615b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16a1e1612512d2dece0b6ae9ec456ba0d8c321569651eb2b5ea633a34b634427",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2015-06-06T01:10:35Z",
    "title_canon_sha256": "642822960e286920b61eafbb9bcc548552daf3b65438a7b885695d7f2257842e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.02096",
    "kind": "arxiv",
    "version": 2
  }
}