Pith Number

pith:3GHM2M2G

pith:2012:3GHM2M2GTHW5WDXVZSY2EKHJV7

not attested not anchored not stored refs pending

Technique detection software for Sparse Matrices

Anila Usman, Muhammad Taimoor Khan

arxiv:1202.5964 v1 · 2012-02-27 · cs.MS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3GHM2M2GTHW5WDXVZSY2EKHJV7}

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	2026-05-18T04:01:24.197998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d98ecd334699eddb0ef5ccb1a228e9afdd56d63c4566d398195d97f5bba7f2e2

Aliases

arxiv: 1202.5964 · arxiv_version: 1202.5964v1 · doi: 10.48550/arxiv.1202.5964 · pith_short_12: 3GHM2M2GTHW5 · pith_short_16: 3GHM2M2GTHW5WDXV · pith_short_8: 3GHM2M2G

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/3GHM2M2GTHW5WDXVZSY2EKHJV7 \
  | 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: d98ecd334699eddb0ef5ccb1a228e9afdd56d63c4566d398195d97f5bba7f2e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89e70ffbd5467ec1d8e11cdf250839214e7b056af8885077d31ef18bc6edffe8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2012-02-27T15:02:13Z",
    "title_canon_sha256": "e886de6dc5087fd8c8211b129dc3624e7e77355d95d7e5c0e8b570d85eeae13c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.5964",
    "kind": "arxiv",
    "version": 1
  }
}