Pith Number

pith:QRYDR4KL

pith:2012:QRYDR4KLF5IWPBJ2F3ZE7MJ4PR

not attested not anchored not stored refs pending

Derived equivalences between subrings

Yiping Chen

arxiv:1204.1693 v1 · 2012-04-08 · math.RT · math.CT · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QRYDR4KLF5IWPBJ2F3ZE7MJ4PR}

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	2026-05-18T03:58:23.411721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

847038f14b2f5167853a2ef24fb13c7c45f91f735bee985773ecf72b9446617f

Aliases

arxiv: 1204.1693 · arxiv_version: 1204.1693v1 · doi: 10.48550/arxiv.1204.1693 · pith_short_12: QRYDR4KLF5IW · pith_short_16: QRYDR4KLF5IWPBJ2 · pith_short_8: QRYDR4KL

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/QRYDR4KLF5IWPBJ2F3ZE7MJ4PR \
  | 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: 847038f14b2f5167853a2ef24fb13c7c45f91f735bee985773ecf72b9446617f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97faf9c6f2e9b50d4c50d4a53292ba60294203cb9007ef90c505d488f0ce1402",
    "cross_cats_sorted": [
      "math.CT",
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2012-04-08T00:51:30Z",
    "title_canon_sha256": "2766538e1cc5f51f90c63f5a1dd24c0d37a8c5440af113ea68d92efc17f98fad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1693",
    "kind": "arxiv",
    "version": 1
  }
}