Pith Number

pith:VEUUEI3H

pith:2017:VEUUEI3HW4ZV2IPJAC2TLDRAUI

not attested not anchored not stored refs pending

When are profinite many-sorted algebras retracts of ultraproducts of finite many-sorted algebras?

Enric Cosme Ll\'opez, Juan Climent Vidal

arxiv:1709.01706 v1 · 2017-09-06 · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VEUUEI3HW4ZV2IPJAC2TLDRAUI}

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	2026-05-18T00:07:23.801458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a929422367b7335d21e900b5358e20a23e28a6ac8dfea093c975e0b1d096b85c

Aliases

arxiv: 1709.01706 · arxiv_version: 1709.01706v1 · doi: 10.48550/arxiv.1709.01706 · pith_short_12: VEUUEI3HW4ZV · pith_short_16: VEUUEI3HW4ZV2IPJ · pith_short_8: VEUUEI3H

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/VEUUEI3HW4ZV2IPJAC2TLDRAUI \
  | 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: a929422367b7335d21e900b5358e20a23e28a6ac8dfea093c975e0b1d096b85c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54c966737d4e7082245514028a99d33b145ccf266e6c6ab4fb4aed29730ffd53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2017-09-06T08:05:30Z",
    "title_canon_sha256": "f281bf56d972e830aa4eb0bd75c6476ead79b179931d2b37093082e787896088"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.01706",
    "kind": "arxiv",
    "version": 1
  }
}