Pith Number

pith:SYDV7UUT

pith:2026:SYDV7UUT2WFRXPRHKA3Y5OWQSI

not attested not anchored not stored refs pending

From Manifold Identification to Newton Acceleration on Intersections: Sparse Stiefel Optimization

Shixiang Chen, Wen Huang

arxiv:2607.12877 v1 · 2026-07-14 · 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{SYDV7UUT2WFRXPRHKA3Y5OWQSI}

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	2026-07-15T01:22:22.888041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96075fd293d58b1bbe2750378ebad09232c7b6f9a82eaa4f07a126b1683e6422

Aliases

arxiv: 2607.12877 · arxiv_version: 2607.12877v1 · doi: 10.48550/arxiv.2607.12877 · pith_short_12: SYDV7UUT2WFR · pith_short_16: SYDV7UUT2WFRXPRH · pith_short_8: SYDV7UUT

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/SYDV7UUT2WFRXPRHKA3Y5OWQSI \
  | 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: 96075fd293d58b1bbe2750378ebad09232c7b6f9a82eaa4f07a126b1683e6422

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5064dc6defefbaabcf490b2d76fe3446bafb126390ed9ca80e4530481ed3aa42",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-07-14T15:25:52Z",
    "title_canon_sha256": "e9d6cd7da7cfb09ecfa37c4ae60402c225883715ba3aa6d441bc1f1e665ef55d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.12877",
    "kind": "arxiv",
    "version": 1
  }
}