Pith Number

pith:ANQE2NE6

pith:2013:ANQE2NE6QFEMPM3LTWCY5HSQJK

not attested not anchored not stored refs pending

Non-stationary extremal eigenvalue approximations in iterative solutions of linear systems and estimators for relative error

Divya Anand Subba, Murugesan Venkatapathi

arxiv:1302.4824 v1 · 2013-02-20 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ANQE2NE6QFEMPM3LTWCY5HSQJK}

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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	2026-05-18T03:33:10.888565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03604d349e8148c7b36b9d858e9e504ab216ffa6106d22eb9174ffea97b52981

Aliases

arxiv: 1302.4824 · arxiv_version: 1302.4824v1 · doi: 10.48550/arxiv.1302.4824 · pith_short_12: ANQE2NE6QFEM · pith_short_16: ANQE2NE6QFEMPM3L · pith_short_8: ANQE2NE6

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/ANQE2NE6QFEMPM3LTWCY5HSQJK \
  | 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: 03604d349e8148c7b36b9d858e9e504ab216ffa6106d22eb9174ffea97b52981

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5d6d05c659887485c5412319e96c800c013170015a4f3561996b412e5e0e250",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-02-20T07:16:50Z",
    "title_canon_sha256": "6823939908fc14c02d450d6185a59869b3cf068248b17489c1901875b7c4f4a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.4824",
    "kind": "arxiv",
    "version": 1
  }
}