Pith Number

pith:IIWVN237

pith:2019:IIWVN237JVBI4UJBH2MRA372O3

not attested not anchored not stored refs pending

Secret objectives: promoting inquiry and tackling preconceptions in teaching laboratories

K. Dunnett, P. A. Bartlett

arxiv:1905.07267 v1 · 2019-05-17 · 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{IIWVN237JVBI4UJBH2MRA372O3}

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	2026-05-17T23:45:56.030646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

422d56eb7f4d428e51213e99106ffa76f82cd0e266f953ee0ec09c64cc24b479

Aliases

arxiv: 1905.07267 · arxiv_version: 1905.07267v1 · doi: 10.48550/arxiv.1905.07267 · pith_short_12: IIWVN237JVBI · pith_short_16: IIWVN237JVBI4UJB · pith_short_8: IIWVN237

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/IIWVN237JVBI4UJBH2MRA372O3 \
  | 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: 422d56eb7f4d428e51213e99106ffa76f82cd0e266f953ee0ec09c64cc24b479

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "485e33e1c99f7e7db4ddae5b3d0acbbc47fa671582cbf3b2aafb1963c4709c16",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2019-05-17T13:47:42Z",
    "title_canon_sha256": "24bca0ee508e1c56b61b8ea5eba9cd269c9861dfb5d6d7154e9617fe871fac1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.07267",
    "kind": "arxiv",
    "version": 1
  }
}