Pith Number

pith:QLV47EKO

pith:2012:QLV47EKO2LOJ5O5W3E3J3U4Q4F

not attested not anchored not stored refs pending

Application-tailored Linear Algebra Algorithms: A search-based Approach

((1) AICES, Diego Fabregat-Traver (1), Paolo Bientinesi (1), RWTH Aachen)

arxiv:1211.5904 v1 · 2012-11-26 · cs.MS · cs.NA · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QLV47EKO2LOJ5O5W3E3J3U4Q4F}

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	2026-05-18T03:39:53.841030Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82ebcf914ed2dc9ebbb6d9369dd390e1519e2af3191a1cfdd39f3ec493c7904b

Aliases

arxiv: 1211.5904 · arxiv_version: 1211.5904v1 · doi: 10.48550/arxiv.1211.5904 · pith_short_12: QLV47EKO2LOJ · pith_short_16: QLV47EKO2LOJ5O5W · pith_short_8: QLV47EKO

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/QLV47EKO2LOJ5O5W3E3J3U4Q4F \
  | 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: 82ebcf914ed2dc9ebbb6d9369dd390e1519e2af3191a1cfdd39f3ec493c7904b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2732d03cead0532e5b9ba5c7bb14f7465d0e7ad9d52faa0514a718f67b059f8e",
    "cross_cats_sorted": [
      "cs.NA",
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2012-11-26T10:15:29Z",
    "title_canon_sha256": "a8b319d113e6373df1b4bd6924ed757efa664f7fdd15bb84dd36858a50a4d9ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.5904",
    "kind": "arxiv",
    "version": 1
  }
}