Pith Number

pith:VKFBQUE4

pith:2015:VKFBQUE4MEICLVDBEI7IRCTXHY

not attested not anchored not stored refs pending

Introducing supersymmetric frieze patterns and linear difference operators

Serge Tabachnikov, Sophie Morier-Genoud, Valentin Ovsienko

arxiv:1501.07476 v2 · 2015-01-29 · math.RA · 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{VKFBQUE4MEICLVDBEI7IRCTXHY}

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	2026-05-18T02:20:30.204168Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa8a18509c611025d461223e888a773e0b5b070c813df13fc19b1a82a74a4174

Aliases

arxiv: 1501.07476 · arxiv_version: 1501.07476v2 · doi: 10.48550/arxiv.1501.07476 · pith_short_12: VKFBQUE4MEIC · pith_short_16: VKFBQUE4MEICLVDB · pith_short_8: VKFBQUE4

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/VKFBQUE4MEICLVDBEI7IRCTXHY \
  | 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: aa8a18509c611025d461223e888a773e0b5b070c813df13fc19b1a82a74a4174

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6523a01fb3531da8ecb0fd472241d57499e5ce4c1691c55abb6839ae47568f32",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2015-01-29T15:16:38Z",
    "title_canon_sha256": "c1500dc2de9e32b36b327be50d81f95818acfe386276873175d543d6e3766574"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07476",
    "kind": "arxiv",
    "version": 2
  }
}