Pith Number

pith:NKEBMSUN

pith:2017:NKEBMSUNUTSJNPDDXTHU7R4JS5

not attested not anchored not stored refs pending

Dual numbers, weighted quivers, and extended Somos and Gale-Robinson sequences

Serge Tabachnikov, Valentin Ovsienko

arxiv:1705.01623 v1 · 2017-05-03 · 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{NKEBMSUNUTSJNPDDXTHU7R4JS5}

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	2026-05-18T00:45:04.540147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a88164a8da4e496bc63bccf4fc789974e9bf7670b3fe53d2bf545b1f983cdc0

Aliases

arxiv: 1705.01623 · arxiv_version: 1705.01623v1 · doi: 10.48550/arxiv.1705.01623 · pith_short_12: NKEBMSUNUTSJ · pith_short_16: NKEBMSUNUTSJNPDD · pith_short_8: NKEBMSUN

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/NKEBMSUNUTSJNPDDXTHU7R4JS5 \
  | 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: 6a88164a8da4e496bc63bccf4fc789974e9bf7670b3fe53d2bf545b1f983cdc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b55ce5094a5a1e64fe5412b85f73baed2c756950b1cf3bd8acc0f9be3010eb41",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-05-03T21:05:17Z",
    "title_canon_sha256": "39ba6308d32f7f1396a02cb97f2fb8d0a034aeefe031fb2e6d04433296cc77ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.01623",
    "kind": "arxiv",
    "version": 1
  }
}