Pith Number

pith:5RR33XNV

pith:2019:5RR33XNVD244JFT63OLQCKHP4T

not attested not anchored not stored refs pending

Matching complexes of trees and applications of the matching tree algorithm

Alex McDonough, Helen Jenne, Julianne Vega, Marija Jeli\'c Milutinovi\'c

arxiv:1905.10560 v4 · 2019-05-25 · math.CO · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5RR33XNVD244JFT63OLQCKHP4T}

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	2026-07-05T02:10:36.570021Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec63bdddb51eb9c4967edb970128efe4e56092bc992c4ae02b6a2ca662f6c542

Aliases

arxiv: 1905.10560 · arxiv_version: 1905.10560v4 · doi: 10.48550/arxiv.1905.10560 · pith_short_12: 5RR33XNVD244 · pith_short_16: 5RR33XNVD244JFT6 · pith_short_8: 5RR33XNV

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/5RR33XNVD244JFT63OLQCKHP4T \
  | 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: ec63bdddb51eb9c4967edb970128efe4e56092bc992c4ae02b6a2ca662f6c542

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fa880aded49862d5840e8adc8a56cb23d1f5fc77a2ab0c535c685177fc6f32d",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-05-25T08:58:59Z",
    "title_canon_sha256": "9b794e4e612478d79694bf8a008300b90cbe8060c5d6261d6f52b8c2f29eba42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.10560",
    "kind": "arxiv",
    "version": 4
  }
}