Pith Number

pith:UCWB4LJ7

pith:2017:UCWB4LJ7HRX6Z6QXB7ZJQB4CKF

not attested not anchored not stored refs pending

Locally finite trees and the topological minor relation

Jorge Bruno, Paul J. Szeptycki

arxiv:1705.04937 v1 · 2017-05-14 · math.CO · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UCWB4LJ7HRX6Z6QXB7ZJQB4CKF}

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	2026-05-18T00:44:34.278793Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0ac1e2d3f3c6fecfa170ff2980782515ce9d24509a31c93c83cf48107607bb0

Aliases

arxiv: 1705.04937 · arxiv_version: 1705.04937v1 · doi: 10.48550/arxiv.1705.04937 · pith_short_12: UCWB4LJ7HRX6 · pith_short_16: UCWB4LJ7HRX6Z6QX · pith_short_8: UCWB4LJ7

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/UCWB4LJ7HRX6Z6QXB7ZJQB4CKF \
  | 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: a0ac1e2d3f3c6fecfa170ff2980782515ce9d24509a31c93c83cf48107607bb0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48267e8b5c3e915183ba9088776470ac842aea0f8dfd6b55f27409e444a7933c",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-05-14T09:04:32Z",
    "title_canon_sha256": "ec5d652359926fd7fc283dff163343ff0b0da56bcec341c6a096577ffcba2cfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.04937",
    "kind": "arxiv",
    "version": 1
  }
}