Pith Number

pith:IOIWQ5DG

pith:2014:IOIWQ5DGQAELOYZ7GSMENWUEQ6

not attested not anchored not stored refs pending

Riemannian preconditioning

Bamdev Mishra, Rodolphe Sepulchre

arxiv:1405.6055 v3 · 2014-05-23 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IOIWQ5DGQAELOYZ7GSMENWUEQ6}

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	2026-05-18T01:19:22.404634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43916874668008b7633f349846da8487bc32df574315ad540cdc5ecfda055c8c

Aliases

arxiv: 1405.6055 · arxiv_version: 1405.6055v3 · doi: 10.48550/arxiv.1405.6055 · pith_short_12: IOIWQ5DGQAEL · pith_short_16: IOIWQ5DGQAELOYZ7 · pith_short_8: IOIWQ5DG

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/IOIWQ5DGQAELOYZ7GSMENWUEQ6 \
  | 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: 43916874668008b7633f349846da8487bc32df574315ad540cdc5ecfda055c8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e65f3afbbe3189c1b22f900580f1f07710c977f5c5b6f24e0ebfe8e897bab6b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-05-23T13:11:03Z",
    "title_canon_sha256": "4b76a9e80a1ec3a5cbeb1b34085215fb845548187fd7b697257ff29e315be340"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.6055",
    "kind": "arxiv",
    "version": 3
  }
}