Pith Number

pith:BL6T7UCX

pith:2017:BL6T7UCXCVT3APXYD25XIZ54RT

not attested not anchored not stored refs pending

Uniqueness questions in a scaling-rotation geometry on the space of symmetric positive-definite matrices

Armin Schwartzman, David Groisser, Sungkyu Jung

arxiv:1702.03237 v2 · 2017-02-10 · math.MG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BL6T7UCXCVT3APXYD25XIZ54RT}

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	2026-05-18T00:27:30.558124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0afd3fd0571567b03ef81ebb7467bc8ce0e5d5878c95b538d774f77b6f44ff63

Aliases

arxiv: 1702.03237 · arxiv_version: 1702.03237v2 · doi: 10.48550/arxiv.1702.03237 · pith_short_12: BL6T7UCXCVT3 · pith_short_16: BL6T7UCXCVT3APXY · pith_short_8: BL6T7UCX

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/BL6T7UCXCVT3APXYD25XIZ54RT \
  | 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: 0afd3fd0571567b03ef81ebb7467bc8ce0e5d5878c95b538d774f77b6f44ff63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abdb41cfc20e0e40dc2db53e4685c3e3ba571b486130a25ff10b8b57bf9960e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2017-02-10T16:18:41Z",
    "title_canon_sha256": "e65f3e2ea2dbf3edec6d2493312b697a9464ac5f5460a66214945f72033c8efe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03237",
    "kind": "arxiv",
    "version": 2
  }
}