Pith Number

pith:2N6IOTMR

pith:2013:2N6IOTMRMZNT73NTEIVWUX7CYM

not attested not anchored not stored refs pending

On GROUSE and Incremental SVD

Laura Balzano, Stephen J. Wright

arxiv:1307.5494 v1 · 2013-07-21 · cs.NA · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2N6IOTMRMZNT73NTEIVWUX7CYM}

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	2026-05-18T03:17:55.532401Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d37c874d91665b3fedb3222b6a5fe2c3246fff2758e942144e6e3f6fbf97f7fc

Aliases

arxiv: 1307.5494 · arxiv_version: 1307.5494v1 · doi: 10.48550/arxiv.1307.5494 · pith_short_12: 2N6IOTMRMZNT · pith_short_16: 2N6IOTMRMZNT73NT · pith_short_8: 2N6IOTMR

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/2N6IOTMRMZNT73NTEIVWUX7CYM \
  | 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: d37c874d91665b3fedb3222b6a5fe2c3246fff2758e942144e6e3f6fbf97f7fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5796247fd6761909fedaf7e7f6a492e87e8075b456eb81243142c7f2ea292a05",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2013-07-21T03:47:16Z",
    "title_canon_sha256": "9620d1bc341247a2104e3a15162da8db9e105e2179c14bb18d64e24b9ff17ecc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5494",
    "kind": "arxiv",
    "version": 1
  }
}