Pith Number

pith:YPC6OEOK

pith:2025:YPC6OEOKALCYC67U6P7BMU2YKV

not attested not anchored not stored refs pending

Closed-form Solution of Wahba's Problem for Pairwise Similar Quaternions

Christian Scheunert, Frank H. P. Fitzek, Hristina Radak

arxiv:2512.07597 v3 · 2025-12-08 · math.RA · cs.NA · 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{YPC6OEOKALCYC67U6P7BMU2YKV}

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	2026-06-09T02:07:14.829380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3c5e711ca02c5817bf4f3fe165358554d587b00aad7390ccdffa6ff753087f5

Aliases

arxiv: 2512.07597 · arxiv_version: 2512.07597v3 · doi: 10.48550/arxiv.2512.07597 · pith_short_12: YPC6OEOKALCY · pith_short_16: YPC6OEOKALCYC67U · pith_short_8: YPC6OEOK

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/YPC6OEOKALCYC67U6P7BMU2YKV \
  | 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: c3c5e711ca02c5817bf4f3fe165358554d587b00aad7390ccdffa6ff753087f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c8cbfc2e58bc4e69069984a1c8aaee661f98b7d7d290579f5c22ceee28cc032",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2025-12-08T14:45:16Z",
    "title_canon_sha256": "e51c1b7eb7afe6bf6f6635c35cd64e0fed9eedde07cb15602cdd4c354b746b17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.07597",
    "kind": "arxiv",
    "version": 3
  }
}