Pith Number

pith:M3UJOVCN

pith:2022:M3UJOVCNKH7ZUMXHIXB2EF6UDA

not attested not anchored not stored refs pending

Physics Masterclasses in Africa and the World

Kenneth Cecire, Uta Bilow

arxiv:2206.07004 v1 · 2022-05-24 · 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{M3UJOVCNKH7ZUMXHIXB2EF6UDA}

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	2026-07-05T04:31:48.090238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66e897544d51ff9a32e745c3a217d4183268453928a0b8d935046a90f3019613

Aliases

arxiv: 2206.07004 · arxiv_version: 2206.07004v1 · doi: 10.48550/arxiv.2206.07004 · pith_short_12: M3UJOVCNKH7Z · pith_short_16: M3UJOVCNKH7ZUMXH · pith_short_8: M3UJOVCN

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/M3UJOVCNKH7ZUMXHIXB2EF6UDA \
  | 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: 66e897544d51ff9a32e745c3a217d4183268453928a0b8d935046a90f3019613

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c3383a7c997dd0aa5ada129ccaaac53ee87b903d53de83603e0e69d27079df5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2022-05-24T19:12:43Z",
    "title_canon_sha256": "3f93344225717e4f9e59495151cb4ee2817967c737ea593e08e6340198f8fa8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.07004",
    "kind": "arxiv",
    "version": 1
  }
}