Pith Number

pith:MMEDBYXC

pith:2019:MMEDBYXCYLN2H2ICBAPDVCBT4X

not attested not anchored not stored refs pending

Diagram of Representations of Universal Algebras

Aleks Kleyn

arxiv:1908.04418 v2 · 2019-08-09 · math.GM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MMEDBYXCYLN2H2ICBAPDVCBT4X}

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.

Cited by

1 paper in Pith

Diagram of Representations of Universal Algebras

Receipt and verification

First computed	2026-07-05T04:18:44.713984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

630830e2e2c2dba3e902081e3a8833e5eb430e5e39d93426e71b13f6e7de13a0

Aliases

arxiv: 1908.04418 · arxiv_version: 1908.04418v2 · doi: 10.48550/arxiv.1908.04418 · pith_short_12: MMEDBYXCYLN2 · pith_short_16: MMEDBYXCYLN2H2IC · pith_short_8: MMEDBYXC

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/MMEDBYXCYLN2H2ICBAPDVCBT4X \
  | 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: 630830e2e2c2dba3e902081e3a8833e5eb430e5e39d93426e71b13f6e7de13a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7711c47d2f4ca0e438b2b765d6689812c8add8630a2a894661cf4fdcf39c474",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2019-08-09T03:15:29Z",
    "title_canon_sha256": "019ea0488d9d976770368faeaa78852ae17f50105fa2e29cff7c71a59b6e2b7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04418",
    "kind": "arxiv",
    "version": 2
  }
}