Pith Number

pith:S7YEFJ4C

pith:2015:S7YEFJ4CFCP7FKD2CDLMW56IBZ

not attested not anchored not stored refs pending

A Hierarchical Dynamic Beta Regression Model of School Performance in the Brazilian Mathematical Olympiads for Public Schools

Alexandra M. Schmidt, Caroline P. de Moraes, Helio S. Migon

arxiv:1507.00565 v1 · 2015-07-02 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S7YEFJ4CFCP7FKD2CDLMW56IBZ}

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	2026-05-18T01:37:24.281559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97f042a782289ff2a87a10d6cb77c80e74e81f8118bea93cd9571350a8ebe1cd

Aliases

arxiv: 1507.00565 · arxiv_version: 1507.00565v1 · doi: 10.48550/arxiv.1507.00565 · pith_short_12: S7YEFJ4CFCP7 · pith_short_16: S7YEFJ4CFCP7FKD2 · pith_short_8: S7YEFJ4C

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/S7YEFJ4CFCP7FKD2CDLMW56IBZ \
  | 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: 97f042a782289ff2a87a10d6cb77c80e74e81f8118bea93cd9571350a8ebe1cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fedba660d9998f654c0342b44e74a1c674d8051b8f9d542452ee18e5e29f349c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2015-07-02T13:10:09Z",
    "title_canon_sha256": "120806c4107ab28c7fc4558734173103cc106ac0efe107e1391f8d1b8d6017d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.00565",
    "kind": "arxiv",
    "version": 1
  }
}