Pith Number

pith:DJPELRAQ

pith:2025:DJPELRAQCEWF3ZYROKFY6DQ2LW

not attested not anchored not stored refs pending

Auxiliary space theory for the analysis of iterative methods for semidefinite linear systems

Jinchao Xu, Jongho Park

arxiv:2509.07179 v1 · 2025-09-08 · math.NA · cs.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{DJPELRAQCEWF3ZYROKFY6DQ2LW}

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	2026-07-05T12:07:17.126047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a5e45c410112c5de711728b8f0e1a5d9e441ceffedf4cf41fee06fe4ad2529e

Aliases

arxiv: 2509.07179 · arxiv_version: 2509.07179v1 · doi: 10.48550/arxiv.2509.07179 · pith_short_12: DJPELRAQCEWF · pith_short_16: DJPELRAQCEWF3ZYR · pith_short_8: DJPELRAQ

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/DJPELRAQCEWF3ZYROKFY6DQ2LW \
  | 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: 1a5e45c410112c5de711728b8f0e1a5d9e441ceffedf4cf41fee06fe4ad2529e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e68615dc0165c6723037e414d446f351cc2ed7f2332b12a6561fec1569b6f5f",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-09-08T19:50:53Z",
    "title_canon_sha256": "a4649757d674aed3057bcad219620c2a0683750356a0d48003dea0aaeb581514"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.07179",
    "kind": "arxiv",
    "version": 1
  }
}