Pith Number

pith:3MD7DLK6

pith:2021:3MD7DLK66WMLI4UPV73PYDM3J2

not attested not anchored not stored refs pending

Some cluster tilting modules for weighted surface algebras

Karin Erdmann

arxiv:2101.11499 v1 · 2021-01-27 · 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{3MD7DLK66WMLI4UPV73PYDM3J2}

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	2026-07-05T02:10:20.627874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db07f1ad5ef598b4728faff6fc0d9b4ea374754d239553d4d12e9eacc840b66a

Aliases

arxiv: 2101.11499 · arxiv_version: 2101.11499v1 · doi: 10.48550/arxiv.2101.11499 · pith_short_12: 3MD7DLK66WML · pith_short_16: 3MD7DLK66WMLI4UP · pith_short_8: 3MD7DLK6

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/3MD7DLK66WMLI4UPV73PYDM3J2 \
  | 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: db07f1ad5ef598b4728faff6fc0d9b4ea374754d239553d4d12e9eacc840b66a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58326825765ebccc60e15d665fec1b9e2e3e13cbd0d8e0538dfc7a313c9c4f5f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2021-01-27T15:49:58Z",
    "title_canon_sha256": "dac5b34fff9a9fd835e8c54b1160813ee34e9ff52ddbc396e44fa30c7af59bde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.11499",
    "kind": "arxiv",
    "version": 1
  }
}