Pith Number

pith:UIC2QLUL

pith:2010:UIC2QLULB52ONVIAVP3MUFWOW4

not attested not anchored not stored refs pending

Free topological universal algebras and absolute neighborhood retracts

Olena Hryniv, Taras Banakh

arxiv:1002.3352 v1 · 2010-02-17 · math.GN · 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{UIC2QLULB52ONVIAVP3MUFWOW4}

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	2026-05-18T04:15:04.623151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a205a82e8b0f74e6d500abf6ca16ceb718522ede87cba6e4a50b7e74b094c19c

Aliases

arxiv: 1002.3352 · arxiv_version: 1002.3352v1 · doi: 10.48550/arxiv.1002.3352 · pith_short_12: UIC2QLULB52O · pith_short_16: UIC2QLULB52ONVIA · pith_short_8: UIC2QLUL

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/UIC2QLULB52ONVIAVP3MUFWOW4 \
  | 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: a205a82e8b0f74e6d500abf6ca16ceb718522ede87cba6e4a50b7e74b094c19c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09b157c30f9c32af6f6a32e98d9a860d2c44d0b9bf90292f47fe81b6a10bad55",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2010-02-17T19:32:56Z",
    "title_canon_sha256": "da15146b7d86cccd2f613df2a821b63cde33582604ed621fb92c478c59f19d43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.3352",
    "kind": "arxiv",
    "version": 1
  }
}