Pith Number

pith:IFUFW72C

pith:2004:IFUFW72CYTL3EQ5AP62MZQTNPP

not attested not anchored not stored refs pending

The Spectral Geometry of the Equatorial Podles Sphere

Andrzej Sitarz, Giovanni Landi, Ludwik Dabrowski, Mario Paschke

arxiv:math/0408034 v2 · 2004-08-03 · math.QA · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IFUFW72CYTL3EQ5AP62MZQTNPP}

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	2026-07-04T14:49:31.824935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41685b7f42c4d7b243a07fb4ccc26d7bfcbf28027831190b8e4b111366da14c4

Aliases

arxiv: math/0408034 · arxiv_version: math/0408034v2 · doi: 10.48550/arxiv.math/0408034 · pith_short_12: IFUFW72CYTL3 · pith_short_16: IFUFW72CYTL3EQ5A · pith_short_8: IFUFW72C

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/IFUFW72CYTL3EQ5AP62MZQTNPP \
  | 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: 41685b7f42c4d7b243a07fb4ccc26d7bfcbf28027831190b8e4b111366da14c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab27835a33d5b484f79d84aeebc5ac82e4c6e29db31322577bdde29027ff0be3",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "math.QA",
    "submitted_at": "2004-08-03T09:59:49Z",
    "title_canon_sha256": "10f7c62d233ef7825ed12bddb1fc6cc25d60efc4f2c51033803bb93b16edcd60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0408034",
    "kind": "arxiv",
    "version": 2
  }
}