Pith Number

pith:2TXE424O

pith:2018:2TXE424OKFMF3JA6H6YHKN5HTY

not attested not anchored not stored refs pending

Tree Drawings Revisited

Timothy M. Chan

arxiv:1803.07185 v1 · 2018-03-19 · 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{2TXE424OKFMF3JA6H6YHKN5HTY}

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	2026-05-18T00:20:34.030563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4ee4e6b8e51585da41e3fb07537a79e27829ba63ae36f86a862387eb3efcb97

Aliases

arxiv: 1803.07185 · arxiv_version: 1803.07185v1 · doi: 10.48550/arxiv.1803.07185 · pith_short_12: 2TXE424OKFMF · pith_short_16: 2TXE424OKFMF3JA6 · pith_short_8: 2TXE424O

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/2TXE424OKFMF3JA6H6YHKN5HTY \
  | 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: d4ee4e6b8e51585da41e3fb07537a79e27829ba63ae36f86a862387eb3efcb97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d1ade4e8ecc62ede7e9f35397d6a8e410ac87b9cb3a4d73a9a9762734cd15be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2018-03-19T22:40:08Z",
    "title_canon_sha256": "ccb50e712ffceaa5ec92e203ef617cd4507abdc724a123fd6c68188a702df818"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07185",
    "kind": "arxiv",
    "version": 1
  }
}