Pith Number

pith:2OYTPUDI

pith:2009:2OYTPUDINWJWTXTG675FUVGZ2B

not attested not anchored not stored refs pending

Singular (Lipschitz) homology and homology of integral currents

Christian Riedweg, Daniel Sch\"appi

arxiv:0902.3831 v1 · 2009-02-23 · math.DG · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2OYTPUDINWJWTXTG675FUVGZ2B}

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.

Cited by

1 paper in Pith

Minimal tetrahedra and an isoperimetric gap theorem in non-positive curvature

Receipt and verification

First computed	2026-07-04T15:38:30.800790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3b137d0686d9369de66f7fa5a54d9d048dcd50f7bc749de25dd327e83bd261d

Aliases

arxiv: 0902.3831 · arxiv_version: 0902.3831v1 · doi: 10.48550/arxiv.0902.3831 · pith_short_12: 2OYTPUDINWJW · pith_short_16: 2OYTPUDINWJWTXTG · pith_short_8: 2OYTPUDI

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/2OYTPUDINWJWTXTG675FUVGZ2B \
  | 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: d3b137d0686d9369de66f7fa5a54d9d048dcd50f7bc749de25dd327e83bd261d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b53d1341f3c651886f7e8ce5d9335da2722635d00305d2b36dae84a5172de23",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-02-23T20:37:24Z",
    "title_canon_sha256": "0f556997d6d6cb9f694a71f6c0b3ebf5fb3704207c8c3a828fc217cd4f2ccb54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.3831",
    "kind": "arxiv",
    "version": 1
  }
}