Pith Number

pith:WUZYMVIF

pith:2015:WUZYMVIFM3JYJHX34UG3DIRZT2

not attested not anchored not stored refs pending

Learning Assistant Supported Student Outcomes (LASSO) study initial findings

Ben Van Dusen, Laurie Langdon, Valerie Otero

arxiv:1509.05358 v1 · 2015-09-17 · physics.ed-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WUZYMVIFM3JYJHX34UG3DIRZT2}

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	2026-05-17T23:59:04.014285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b53386550566d3849efbe50db1a2399e90b74c40f8ee34cc7810ca8505c3699e

Aliases

arxiv: 1509.05358 · arxiv_version: 1509.05358v1 · doi: 10.48550/arxiv.1509.05358 · pith_short_12: WUZYMVIFM3JY · pith_short_16: WUZYMVIFM3JYJHX3 · pith_short_8: WUZYMVIF

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/WUZYMVIFM3JYJHX34UG3DIRZT2 \
  | 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: b53386550566d3849efbe50db1a2399e90b74c40f8ee34cc7810ca8505c3699e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7effedb658a7df88eae25642c803fa350ce5b5884b859de3e81bf0863b43a6c3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2015-09-17T18:24:43Z",
    "title_canon_sha256": "57fea169bc067502bf6cf9166f18ff9dd2628f04d0067031e721d1e274d4f12e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05358",
    "kind": "arxiv",
    "version": 1
  }
}