Pith Number

pith:27ARCQVW

pith:2018:27ARCQVWIB4EQJIK2NZMMYWDKP

not attested not anchored not stored refs pending

Experimental Design Modulates Variance in BOLD Activation: The Variance Design General Linear Model

Garren Gaut, Mark Steyvers, Xiangrui Li, Zhong-Lin Lu

arxiv:1808.02157 v1 · 2018-08-06 · 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{27ARCQVWIB4EQJIK2NZMMYWDKP}

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	2026-05-18T00:08:47.438443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7c11142b6407848250ad372c662c353de9ba9f901b0abb1f56299dd9dab90af

Aliases

arxiv: 1808.02157 · arxiv_version: 1808.02157v1 · doi: 10.48550/arxiv.1808.02157 · pith_short_12: 27ARCQVWIB4E · pith_short_16: 27ARCQVWIB4EQJIK · pith_short_8: 27ARCQVW

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/27ARCQVWIB4EQJIK2NZMMYWDKP \
  | 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: d7c11142b6407848250ad372c662c353de9ba9f901b0abb1f56299dd9dab90af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "615d051cf883f4e8ec008ca624df5f33de53297f086f7b4dd0c692c9044f7eff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.NC",
    "submitted_at": "2018-08-06T23:57:26Z",
    "title_canon_sha256": "5a7b792dfb337628095e1b6d6c2842f4aadb71e1978691db06321cd22f1da56f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02157",
    "kind": "arxiv",
    "version": 1
  }
}