Pith Number

pith:3WAEDWSI

pith:2019:3WAEDWSIGF2C7YTROXJJOGH63Q

not attested not anchored not stored refs pending

Hermione and the Secretary: How gendered task division in introductory physics labs can disrupt equitable learning

Chandralekha Singh, Danny Doucette, Russell Clark

arxiv:1908.06827 v2 · 2019-08-19 · 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{3WAEDWSIGF2C7YTROXJJOGH63Q}

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	2026-07-05T01:02:27.615077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd8041da4831742fe27175d29718fedc127fe5180296077b5da4ae14508d3d57

Aliases

arxiv: 1908.06827 · arxiv_version: 1908.06827v2 · doi: 10.48550/arxiv.1908.06827 · pith_short_12: 3WAEDWSIGF2C · pith_short_16: 3WAEDWSIGF2C7YTR · pith_short_8: 3WAEDWSI

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/3WAEDWSIGF2C7YTROXJJOGH63Q \
  | 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: dd8041da4831742fe27175d29718fedc127fe5180296077b5da4ae14508d3d57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3aa8ac0ed8153558f976f618a29033ae6f9e773dbd3270448a20580e2890ef81",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2019-08-19T14:23:58Z",
    "title_canon_sha256": "f2091f5519a7162e8cb7e0a013371f15e06ae9ded927bf558e50b5b74c6e182e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06827",
    "kind": "arxiv",
    "version": 2
  }
}