Pith Number

pith:JFZLPW3W

pith:2016:JFZLPW3WXNVCXAVVAVC4MQD7KJ

not attested not anchored not stored refs pending

Fault Tolerant QR Factorization for General Matrices

Camille Coti

arxiv:1604.02504 v2 · 2016-04-09 · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JFZLPW3WXNVCXAVVAVC4MQD7KJ}

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	2026-05-18T01:17:07.241913Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4972b7db76bb6a2b82b50545c6407f5269080db9f797debd9299251d9e240868

Aliases

arxiv: 1604.02504 · arxiv_version: 1604.02504v2 · doi: 10.48550/arxiv.1604.02504 · pith_short_12: JFZLPW3WXNVC · pith_short_16: JFZLPW3WXNVCXAVV · pith_short_8: JFZLPW3W

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/JFZLPW3WXNVCXAVVAVC4MQD7KJ \
  | 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: 4972b7db76bb6a2b82b50545c6407f5269080db9f797debd9299251d9e240868

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8cde979661c79a95ce66bc57857a1f833b122d60c95e93b8ec93f93104c8137",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2016-04-09T00:25:10Z",
    "title_canon_sha256": "db2c5c410248a06e073e02382be1d5f76b6d3e7896940068834b2778e35ad247"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.02504",
    "kind": "arxiv",
    "version": 2
  }
}