Pith Number

pith:TD4A6IW7

pith:2009:TD4A6IW7A5YKGIM3QZCVFW6YR7

not attested not anchored not stored refs pending

Moduli of flat SU(3)-bundles over a Klein bottle

Thomas Baird

arxiv:0901.1604 v3 · 2009-01-12 · math.SG · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TD4A6IW7A5YKGIM3QZCVFW6YR7}

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	2026-05-18T04:32:22.222065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98f80f22df0770a3219b864552dbd88fe02f372baa884cfed2ceaa13a0ee543f

Aliases

arxiv: 0901.1604 · arxiv_version: 0901.1604v3 · doi: 10.48550/arxiv.0901.1604 · pith_short_12: TD4A6IW7A5YK · pith_short_16: TD4A6IW7A5YKGIM3 · pith_short_8: TD4A6IW7

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/TD4A6IW7A5YKGIM3QZCVFW6YR7 \
  | 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: 98f80f22df0770a3219b864552dbd88fe02f372baa884cfed2ceaa13a0ee543f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae19d2fdf3d74318f606d2136fa93c6ea2487861b2843f8ce31ac751ae21c207",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2009-01-12T16:22:43Z",
    "title_canon_sha256": "cd6e330339b103723007fa3e2def665aa5b70b84ef21b586ea60a637af71b6ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1604",
    "kind": "arxiv",
    "version": 3
  }
}