Pith Number

pith:MFDXZ6QM

pith:2019:MFDXZ6QMYDO4ZY5JBNUYULJYNK

not attested not anchored not stored refs pending

Smirnov Trees

Matja\v{z} Konvalinka, Vasu Tewari

arxiv:1901.10140 v1 · 2019-01-29 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MFDXZ6QMYDO4ZY5JBNUYULJYNK}

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	2026-05-17T23:55:16.050913Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61477cfa0cc0ddcce3a90b698a2d386a9c0fece0e8cd002ebcb9fea712d3dc5a

Aliases

arxiv: 1901.10140 · arxiv_version: 1901.10140v1 · doi: 10.48550/arxiv.1901.10140 · pith_short_12: MFDXZ6QMYDO4 · pith_short_16: MFDXZ6QMYDO4ZY5J · pith_short_8: MFDXZ6QM

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/MFDXZ6QMYDO4ZY5JBNUYULJYNK \
  | 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: 61477cfa0cc0ddcce3a90b698a2d386a9c0fece0e8cd002ebcb9fea712d3dc5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79692218cd6f601a29852bd2c5e85a4199a844de334ec6ca6038b95e9eaf6693",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-01-29T07:14:26Z",
    "title_canon_sha256": "8654c459556a3a6d3062f72226fe5b59c4775698b9415c12fd1887143966ce78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.10140",
    "kind": "arxiv",
    "version": 1
  }
}