Pith Number

pith:CRTPCKTO

pith:2012:CRTPCKTOF26LNSIXCQGBDUVNYH

not attested not anchored not stored refs pending

A class where qualitative discussions, coming weeks before computationally complicated practice, helps students' problem solving abilities

D. J. Webb

arxiv:1210.3386 v1 · 2012-10-11 · 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{CRTPCKTOF26LNSIXCQGBDUVNYH}

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	2026-05-18T03:43:20.022347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1466f12a6e2ebcb6c917140c11d2adc1c771fcd4b5747d8e8907b6e1494c2927

Aliases

arxiv: 1210.3386 · arxiv_version: 1210.3386v1 · doi: 10.48550/arxiv.1210.3386 · pith_short_12: CRTPCKTOF26L · pith_short_16: CRTPCKTOF26LNSIX · pith_short_8: CRTPCKTO

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/CRTPCKTOF26LNSIXCQGBDUVNYH \
  | 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: 1466f12a6e2ebcb6c917140c11d2adc1c771fcd4b5747d8e8907b6e1494c2927

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a1a53c71ab159772b45e1df69eb69d8ce54667b3790b11daad44101d7ef2192",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2012-10-11T22:22:46Z",
    "title_canon_sha256": "2764f4174952c807031a02f8064614f7f17f04712f2089c0420bdb0aa03ec94b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.3386",
    "kind": "arxiv",
    "version": 1
  }
}