Pith Number

pith:QCL3FMJI

pith:2015:QCL3FMJI4PP5DOFRJYA7EJU73Q

not attested not anchored not stored refs pending

Impossibility Theorems and the Universal Algebraic Toolkit

Mario Szegedy, Yixin Xu

arxiv:1506.01315 v1 · 2015-06-01 · cs.CC · cs.LO · math.CO · q-fin.EC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QCL3FMJI4PP5DOFRJYA7EJU73Q}

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

2 papers in Pith

Classification aggregation: a quantitative impossibility theorem

Receipt and verification

First computed	2026-05-18T01:58:24.597065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8097b2b128e3dfd1b8b14e01f2269fdc3732fe0f496a93d374f2b528fc23114f

Aliases

arxiv: 1506.01315 · arxiv_version: 1506.01315v1 · doi: 10.48550/arxiv.1506.01315 · pith_short_12: QCL3FMJI4PP5 · pith_short_16: QCL3FMJI4PP5DOFR · pith_short_8: QCL3FMJI

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/QCL3FMJI4PP5DOFRJYA7EJU73Q \
  | 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: 8097b2b128e3dfd1b8b14e01f2269fdc3732fe0f496a93d374f2b528fc23114f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d167c95135c047cc2ad05c75f6038a2551dc03620145ff010b08465f0e9d5c8",
    "cross_cats_sorted": [
      "cs.LO",
      "math.CO",
      "q-fin.EC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2015-06-01T04:42:36Z",
    "title_canon_sha256": "41aefabe608b6b7fd2ec96d545a1168b062013e6969ad6195f429fdb4e3abc24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.01315",
    "kind": "arxiv",
    "version": 1
  }
}