Pith Number

pith:OICUTN3M

pith:2011:OICUTN3MOQLU6W2JONPVU45QHX

not attested not anchored not stored refs pending

$q$-Analog Singular Homology of Convex Spaces

Gabriel Padilla, Mauricio Angel

arxiv:1108.4346 v1 · 2011-08-22 · math.AT · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OICUTN3MOQLU6W2JONPVU45QHX}

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	2026-05-18T04:14:55.666521Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

720549b76c74174f5b49735f5a73b03dd613b644e3c3679411bb0b6c7af900fb

Aliases

arxiv: 1108.4346 · arxiv_version: 1108.4346v1 · doi: 10.48550/arxiv.1108.4346 · pith_short_12: OICUTN3MOQLU · pith_short_16: OICUTN3MOQLU6W2J · pith_short_8: OICUTN3M

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/OICUTN3MOQLU6W2JONPVU45QHX \
  | 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: 720549b76c74174f5b49735f5a73b03dd613b644e3c3679411bb0b6c7af900fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ecf263a46922226c629d0ab28e83aeaf7c999858a3cd360730bed2d4fee9978",
    "cross_cats_sorted": [
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2011-08-22T15:25:00Z",
    "title_canon_sha256": "e4e6d674c0c95493a3446456de59c4710cba62d08becebc6cbbdf336ca04c509"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4346",
    "kind": "arxiv",
    "version": 1
  }
}