Pith Number

pith:6OB5QYVJ

pith:2016:6OB5QYVJUYMKW7PTG3XRGFWEBH

not attested not anchored not stored refs pending

Efficient Realization of Householder Transform through Algorithm-Architecture Co-design for Acceleration of QR Factorization

Anupam Chattopadhyay, Farhad Merchant, Ranjani Narayan, S K Nandy, Soumyendu Raha, Tarun Vatwani

arxiv:1612.04470 v1 · 2016-12-14 · cs.PF · 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{6OB5QYVJUYMKW7PTG3XRGFWEBH}

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	2026-05-18T00:21:05.057089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f383d862a9a618ab7df336ef1316c409d143b6e9e49e55584333b586ba71c9ec

Aliases

arxiv: 1612.04470 · arxiv_version: 1612.04470v1 · doi: 10.48550/arxiv.1612.04470 · pith_short_12: 6OB5QYVJUYMK · pith_short_16: 6OB5QYVJUYMKW7PT · pith_short_8: 6OB5QYVJ

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/6OB5QYVJUYMKW7PTG3XRGFWEBH \
  | 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: f383d862a9a618ab7df336ef1316c409d143b6e9e49e55584333b586ba71c9ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "113562a94f1d1351feac361735c530ca79c9a33f5099ffc6e2c9ef72c4d221c4",
    "cross_cats_sorted": [
      "cs.MS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PF",
    "submitted_at": "2016-12-14T03:22:44Z",
    "title_canon_sha256": "381576f9ad286c2594e7d0c53961b3905b4eba547d02d503c3cbfcb96ab62193"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.04470",
    "kind": "arxiv",
    "version": 1
  }
}