Pith Number

pith:HOEGRB2N

pith:2018:HOEGRB2NWILII2XUEIGUKSFASW

not attested not anchored not stored refs pending

The ancestral matrix of a rooted tree

Eric O. D. Andriantiana, Kenneth Dadedzi, Stephan Wagner

arxiv:1809.03364 v1 · 2018-09-10 · 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{HOEGRB2NWILII2XUEIGUKSFASW}

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	2026-05-18T00:06:07.076780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b8868874db216846af4220d4548a09581d337d03bfe1c9cbb19f06cf70c2976

Aliases

arxiv: 1809.03364 · arxiv_version: 1809.03364v1 · doi: 10.48550/arxiv.1809.03364 · pith_short_12: HOEGRB2NWILI · pith_short_16: HOEGRB2NWILII2XU · pith_short_8: HOEGRB2N

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/HOEGRB2NWILII2XUEIGUKSFASW \
  | 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: 3b8868874db216846af4220d4548a09581d337d03bfe1c9cbb19f06cf70c2976

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb0dab4c7538a0982e78280ae671d2beca0bf2d2cd2aaefb99fc1d8c5e26eacb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-09-10T14:47:53Z",
    "title_canon_sha256": "df7b7c4e94aa5a00577722d187d846d92f320c33f6336acecf57349284a2a467"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.03364",
    "kind": "arxiv",
    "version": 1
  }
}