Pith Number

pith:STZQNE7D

pith:2020:STZQNE7DJWCXOJBIDFSH4N5XKE

not attested not anchored not stored refs pending

Schools on different corners: An investigation into the effects of ethnicity and socioeconomic status on physics offerings in Northern California public high schools

Bree Barnett Dreyfuss, David Marasco

arxiv:2010.08476 v4 · 2020-10-16 · 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{STZQNE7DJWCXOJBIDFSH4N5XKE}

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	2026-07-05T02:47:57.397983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94f30693e34d8577242819647e37b75104242d0738fd9ad92f87d9bb52630b88

Aliases

arxiv: 2010.08476 · arxiv_version: 2010.08476v4 · doi: 10.48550/arxiv.2010.08476 · pith_short_12: STZQNE7DJWCX · pith_short_16: STZQNE7DJWCXOJBI · pith_short_8: STZQNE7D

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/STZQNE7DJWCXOJBIDFSH4N5XKE \
  | 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: 94f30693e34d8577242819647e37b75104242d0738fd9ad92f87d9bb52630b88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecac7a73ccbee71115bc3d69a11d3225aa17ca835d137ac7819eb6e5462800b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2020-10-16T16:23:59Z",
    "title_canon_sha256": "7b3c2d0ee09d09283a441e20d2e69bd9aa79b69da142f7991c1429c48d9622a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.08476",
    "kind": "arxiv",
    "version": 4
  }
}