Pith Number

pith:I7ULK5XT

pith:2016:I7ULK5XTQP4MXL4LVHHU6745FC

not attested not anchored not stored refs pending

Preconditioned iterative methods for eigenvalue counts

Chao Yang, Eugene Vecharynski

arxiv:1602.02306 v1 · 2016-02-06 · 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{I7ULK5XTQP4MXL4LVHHU6745FC}

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	2026-05-18T01:21:10.355249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47e8b576f383f8cbaf8ba9cf4f7f9d2892f4452e06921b18c2ceda12925b4710

Aliases

arxiv: 1602.02306 · arxiv_version: 1602.02306v1 · doi: 10.48550/arxiv.1602.02306 · pith_short_12: I7ULK5XTQP4M · pith_short_16: I7ULK5XTQP4MXL4L · pith_short_8: I7ULK5XT

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/I7ULK5XTQP4MXL4LVHHU6745FC \
  | 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: 47e8b576f383f8cbaf8ba9cf4f7f9d2892f4452e06921b18c2ceda12925b4710

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69ba5f55c059a28992976871b8c68db75a805351756185dcdbee7e0744d1144c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-02-06T20:33:20Z",
    "title_canon_sha256": "54c9f1ede43ff4b300ec63db3af9e9b64327c57e0a6fa189b50bcd8f239f6aae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.02306",
    "kind": "arxiv",
    "version": 1
  }
}