Pith Number

pith:CNTCMVX5

pith:2017:CNTCMVX52RRKBMZKDQH5EXZL6N

not attested not anchored not stored refs pending

On Upward Drawings of Trees on a Given Grid

Debajyoti Mondal, Therese Biedl

arxiv:1708.09515 v1 · 2017-08-31 · 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{CNTCMVX52RRKBMZKDQH5EXZL6N}

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	2026-05-18T00:36:18.546238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13662656fdd462a0b32a1c0fd25f2bf3579c6546906945917d4dbf03a06b9354

Aliases

arxiv: 1708.09515 · arxiv_version: 1708.09515v1 · doi: 10.48550/arxiv.1708.09515 · pith_short_12: CNTCMVX52RRK · pith_short_16: CNTCMVX52RRKBMZK · pith_short_8: CNTCMVX5

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/CNTCMVX52RRKBMZKDQH5EXZL6N \
  | 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: 13662656fdd462a0b32a1c0fd25f2bf3579c6546906945917d4dbf03a06b9354

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6c01a8871475ebbb6596debd79c0b74623f331f840aae4b54105a9294de1065",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-08-31T00:59:02Z",
    "title_canon_sha256": "691128e2f77ee3c0546db8a2b93f37d585422d97e6c612b16252e9a549b19703"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.09515",
    "kind": "arxiv",
    "version": 1
  }
}