Pith Number

pith:E3INRVIQ

pith:2016:E3INRVIQLBXURPLENYD7453Z5F

not attested not anchored not stored refs pending

Riccati-regularized Precision Matrices for Neuroimaging

Christos Davatzikos, Nicolas Honnorat

arxiv:1612.03428 v1 · 2016-12-11 · stat.ME · math.OC · q-bio.NC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E3INRVIQLBXURPLENYD7453Z5F}

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	2026-05-18T00:54:52.389715Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26d0d8d510586f48bd646e07fe7779e9667508fbb911080cd57b26a271953f8e

Aliases

arxiv: 1612.03428 · arxiv_version: 1612.03428v1 · doi: 10.48550/arxiv.1612.03428 · pith_short_12: E3INRVIQLBXU · pith_short_16: E3INRVIQLBXURPLE · pith_short_8: E3INRVIQ

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/E3INRVIQLBXURPLENYD7453Z5F \
  | 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: 26d0d8d510586f48bd646e07fe7779e9667508fbb911080cd57b26a271953f8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95b1483d5aaa84c8d3eba1a0a1696fbe5affd8989ba77f5c16e7838fb0fd933d",
    "cross_cats_sorted": [
      "math.OC",
      "q-bio.NC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2016-12-11T16:04:30Z",
    "title_canon_sha256": "308503ee9c13ad6b57f5cd46a4c732ba74dcb78b3562b5817e5e2e40f6ef5a52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.03428",
    "kind": "arxiv",
    "version": 1
  }
}