Pith Number

pith:EXHGEIP4

pith:2014:EXHGEIP45HK4BZAO36UFXG4AI3

not attested not anchored not stored refs pending

Nearly Optimal Computations with Structured Matrices

Elias Tsigaridas (LIP6, Inria Paris-Rocquencourt), Victor Y. Pan

arxiv:1404.4768 v1 · 2014-04-18 · cs.SC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EXHGEIP45HK4BZAO36UFXG4AI3}

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	2026-05-18T02:53:55.027119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25ce6221fce9d5c0e40edfa85b9b8046fe7a73757181fdbd39c5bc30f58210f3

Aliases

arxiv: 1404.4768 · arxiv_version: 1404.4768v1 · doi: 10.48550/arxiv.1404.4768 · pith_short_12: EXHGEIP45HK4 · pith_short_16: EXHGEIP45HK4BZAO · pith_short_8: EXHGEIP4

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/EXHGEIP45HK4BZAO36UFXG4AI3 \
  | 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: 25ce6221fce9d5c0e40edfa85b9b8046fe7a73757181fdbd39c5bc30f58210f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f08cca0523eedaf88818814863f41c6648748d006f237ce76e66a3b8d396460",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2014-04-18T12:43:34Z",
    "title_canon_sha256": "a9bd62db1f1111bf323930a118264ba03fc5b229346e9dcb85189e74cc4ae319"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.4768",
    "kind": "arxiv",
    "version": 1
  }
}