Pith Number

pith:EBYUHFQ5

pith:2017:EBYUHFQ5T7GYRC3JF5MTYD5EN7

not attested not anchored not stored refs pending

Exact Statistical Characterization of $2\times2$ Gram Matrices with Arbitrary Variance Profile

David Morales-Jimenez, Matthew McKay, Nicolas Auguin

arxiv:1705.05214 v1 · 2017-04-12 · cs.IT · math.IT · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EBYUHFQ5T7GYRC3JF5MTYD5EN7}

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	2026-05-18T00:44:31.088463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

207143961d9fcd888b692f593c0fa46fe0b7e2f4a27e051a2aaa9746c79bffb0

Aliases

arxiv: 1705.05214 · arxiv_version: 1705.05214v1 · doi: 10.48550/arxiv.1705.05214 · pith_short_12: EBYUHFQ5T7GY · pith_short_16: EBYUHFQ5T7GYRC3J · pith_short_8: EBYUHFQ5

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/EBYUHFQ5T7GYRC3JF5MTYD5EN7 \
  | 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: 207143961d9fcd888b692f593c0fa46fe0b7e2f4a27e051a2aaa9746c79bffb0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c08e46e57a7c1ebc9af53f09f1b6a3e1ea2ab6040a45b3e3751942a0c2f0320",
    "cross_cats_sorted": [
      "math.IT",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-04-12T05:48:59Z",
    "title_canon_sha256": "55bcc8a2ad05b541dd40ec9da1c44a2999497fe79f6b809e77ed9394b1269cd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.05214",
    "kind": "arxiv",
    "version": 1
  }
}