Pith Number

pith:AM2FHVLH

pith:2024:AM2FHVLH3ZHSLVQ5MTFOS7R2CU

not attested not anchored not stored refs pending

On the Injectivity Radius of the Stiefel Manifold: Numerical investigations and an explicit construction of a cut point at short distance

Jakob Stoye, Ralf Zimmermann

arxiv:2403.03782 v2 · 2024-03-06 · 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{AM2FHVLH3ZHSLVQ5MTFOS7R2CU}

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.

Cited by

1 paper in Pith

chebgreen: Learning and Interpolating Continuous Empirical Green's Functions from Data

Receipt and verification

First computed	2026-07-05T08:41:00.391658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

033453d567de4f25d61d64cae97e3a15118451bf7795fed424b08d1a0c6d1a36

Aliases

arxiv: 2403.03782 · arxiv_version: 2403.03782v2 · doi: 10.48550/arxiv.2403.03782 · pith_short_12: AM2FHVLH3ZHS · pith_short_16: AM2FHVLH3ZHSLVQ5 · pith_short_8: AM2FHVLH

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/AM2FHVLH3ZHSLVQ5MTFOS7R2CU \
  | 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: 033453d567de4f25d61d64cae97e3a15118451bf7795fed424b08d1a0c6d1a36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a4870cb79c2c85848844ecf98d127d5f41f180ffe50dc6df40a0daa7f7b222b",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-03-06T15:26:05Z",
    "title_canon_sha256": "00033169232d6270df55c0bfbd98b6bf33678c916569ae103820893b2ee86013"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2403.03782",
    "kind": "arxiv",
    "version": 2
  }
}