Pith Number

pith:2SUAZSY4

pith:2009:2SUAZSY42ZENDW4OMYMTOCCFZS

not attested not anchored not stored refs pending

Kernel Spectral Curvature Clustering (KSCC)

G. Chen, G. Lerman, S. Atev

arxiv:0909.1605 v1 · 2009-09-09 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2SUAZSY42ZENDW4OMYMTOCCFZS}

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	2026-05-18T03:44:03.017270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4a80ccb1cd648d1db8e6619370845ccaee7872df6ee7a6099f1abe2ad14997d

Aliases

arxiv: 0909.1605 · arxiv_version: 0909.1605v1 · doi: 10.48550/arxiv.0909.1605 · pith_short_12: 2SUAZSY42ZEN · pith_short_16: 2SUAZSY42ZENDW4O · pith_short_8: 2SUAZSY4

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/2SUAZSY42ZENDW4OMYMTOCCFZS \
  | 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: d4a80ccb1cd648d1db8e6619370845ccaee7872df6ee7a6099f1abe2ad14997d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8487cbce5331b0fb467d3150163dcd214f661c8abd73ef57d8d3e44f28578331",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2009-09-09T01:58:23Z",
    "title_canon_sha256": "d4aeaed3b01e59f60b768200acba18d763472159f85f21f77d8963b3268c04b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1605",
    "kind": "arxiv",
    "version": 1
  }
}