Pith Number

pith:SHTEVR4E

pith:2025:SHTEVR4E4IANA2OOFTTYTRBRI2

not attested not anchored not stored refs pending

On $h$-cobordisms of complexity $2$

Roberto Ladu

arxiv:2501.08750 v2 · 2025-01-15 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SHTEVR4E4IANA2OOFTTYTRBRI2}

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	2026-07-05T11:24:12.684084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91e64ac784e200d069ce2ce789c43146b7176e9a3c470cb07e8f15efca8e91fb

Aliases

arxiv: 2501.08750 · arxiv_version: 2501.08750v2 · doi: 10.48550/arxiv.2501.08750 · pith_short_12: SHTEVR4E4IAN · pith_short_16: SHTEVR4E4IANA2OO · pith_short_8: SHTEVR4E

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/SHTEVR4E4IANA2OOFTTYTRBRI2 \
  | 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: 91e64ac784e200d069ce2ce789c43146b7176e9a3c470cb07e8f15efca8e91fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfd37d8d7c3b0b7187f9cee45c70d59715dd08f6ec467ea89105c7d6bae84c17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2025-01-15T12:09:19Z",
    "title_canon_sha256": "528da3e82f0270051e1a7a02e3214f4d6c165476cd038b05711b0ceaf62cc77b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.08750",
    "kind": "arxiv",
    "version": 2
  }
}