Pith Number

pith:OIKRGXXI

pith:2014:OIKRGXXIPT7RNIKDRPRJUEEOJP

not attested not anchored not stored refs pending

Smooth geometry of the noncommutative pillow, cones and lens spaces

Andrzej Sitarz, Tomasz Brzezi\'nski

arxiv:1410.6587 v2 · 2014-10-24 · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OIKRGXXIPT7RNIKDRPRJUEEOJP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:16:51.083165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7215135ee87cff16a1438be29a108e4bc5d0368da0d4f959d7fa27328a0f7fff

Aliases

arxiv: 1410.6587 · arxiv_version: 1410.6587v2 · doi: 10.48550/arxiv.1410.6587 · pith_short_12: OIKRGXXIPT7R · pith_short_16: OIKRGXXIPT7RNIKD · pith_short_8: OIKRGXXI

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/OIKRGXXIPT7RNIKDRPRJUEEOJP \
  | 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: 7215135ee87cff16a1438be29a108e4bc5d0368da0d4f959d7fa27328a0f7fff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac4ca912aab8cacfefb98affb2ff9fc73df4898f4fba064a6637b4b347cbd8b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2014-10-24T06:17:50Z",
    "title_canon_sha256": "fab5b3e67d244c7f7cf1941cc0b7773ef679128f72526006e5d6b1fa2054fbf7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.6587",
    "kind": "arxiv",
    "version": 2
  }
}