Pith Number

pith:6E6WOQXK

pith:2019:6E6WOQXKAJGKCHURST7SQHSCJ2

not attested not anchored not stored refs pending

Tetranacci Identities With Squares, Dominoes, And Hexagonal Double-Strips

Ziqian (Alexa) Jin

arxiv:1907.09935 v1 · 2019-07-22 · math.GM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6E6WOQXKAJGKCHURST7SQHSCJ2}

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	2026-05-17T23:39:49.652219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f13d6742ea024ca11e9194ff281e424ea91a0f835b1620a94c5b1904b9ca3e63

Aliases

arxiv: 1907.09935 · arxiv_version: 1907.09935v1 · doi: 10.48550/arxiv.1907.09935 · pith_short_12: 6E6WOQXKAJGK · pith_short_16: 6E6WOQXKAJGKCHUR · pith_short_8: 6E6WOQXK

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/6E6WOQXKAJGKCHURST7SQHSCJ2 \
  | 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: f13d6742ea024ca11e9194ff281e424ea91a0f835b1620a94c5b1904b9ca3e63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f325fd2fe81b59d2108edb14a42f038aea87f6e4940d8e8b25a5f4a56dfb90c5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2019-07-22T00:20:33Z",
    "title_canon_sha256": "3b5b53159a135e6e9db3e435a0b986c1b754dcb9934d730186a42d9bb6c1e497"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.09935",
    "kind": "arxiv",
    "version": 1
  }
}