Pith Number

pith:QK5ITO7E

pith:2014:QK5ITO7ESIHQDQLVFGQG7YIXCE

not attested not anchored not stored refs pending

Derived invariants for surface algebras

Claire Amiot, Yvonne Grimeland

arxiv:1411.0383 v2 · 2014-11-03 · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QK5ITO7ESIHQDQLVFGQG7YIXCE}

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	2026-05-18T01:18:18.518996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82ba89bbe4920f01c17529a06fe117110c475cb7d5d5bab9284173c20b69872f

Aliases

arxiv: 1411.0383 · arxiv_version: 1411.0383v2 · doi: 10.48550/arxiv.1411.0383 · pith_short_12: QK5ITO7ESIHQ · pith_short_16: QK5ITO7ESIHQDQLV · pith_short_8: QK5ITO7E

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/QK5ITO7ESIHQDQLVFGQG7YIXCE \
  | 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: 82ba89bbe4920f01c17529a06fe117110c475cb7d5d5bab9284173c20b69872f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed3876a571de5fa5d2f1a6116e5135ffe48bc4147de788b06a6c518517e7101f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2014-11-03T07:41:26Z",
    "title_canon_sha256": "ac9af6c329fdc7b7f37f08ef70c76fb04cf583322524a860590c3fc8c75cdd9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.0383",
    "kind": "arxiv",
    "version": 2
  }
}