Pith Number

pith:QUMYOJZP

pith:2009:QUMYOJZPGSHYJIWUCOYVHOWAKW

not attested not anchored not stored refs pending

SMART: A statistical framework for optimal design matrix generation with application to fMRI

Adam Schwarz, Alexandre Coimbra, David Borsook, Gautam Pendse, Lino Becerra, Richard Baumgartner

arxiv:0903.1880 v1 · 2009-03-11 · stat.ME · stat.AP · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QUMYOJZPGSHYJIWUCOYVHOWAKW}

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	2026-05-18T04:42:13.894651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

851987272f348f84a2d413b153bac055b4c32f67e97ed337c0359372911f2939

Aliases

arxiv: 0903.1880 · arxiv_version: 0903.1880v1 · doi: 10.48550/arxiv.0903.1880 · pith_short_12: QUMYOJZPGSHY · pith_short_16: QUMYOJZPGSHYJIWU · pith_short_8: QUMYOJZP

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/QUMYOJZPGSHYJIWUCOYVHOWAKW \
  | 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: 851987272f348f84a2d413b153bac055b4c32f67e97ed337c0359372911f2939

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b112d67c3f924bf93ddb4438350323ab7aac413cfbdf0ea28649080883705a98",
    "cross_cats_sorted": [
      "stat.AP",
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2009-03-11T19:23:34Z",
    "title_canon_sha256": "b83205840bddb12d7ff11d68d836f4fde55d9596f07314903dcbff3e09a31fa7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1880",
    "kind": "arxiv",
    "version": 1
  }
}