Pith Number

pith:CB7LBAR7

pith:2008:CB7LBAR73ZPTD7JQZP5HODLGOA

not attested not anchored not stored refs pending

A Deeper Look at Student Learning of Quantum Mechanics: the Case of Tunneling

C. E. Wieman, K. K. Perkins, S. B. McKagan

arxiv:0802.3194 v3 · 2008-02-21 · 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{CB7LBAR73ZPTD7JQZP5HODLGOA}

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	2026-05-18T00:46:25.305174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

107eb0823fde5f31fd30cbfa770d6670392349e7e3ce1fcaaf817c7862ef0c8e

Aliases

arxiv: 0802.3194 · arxiv_version: 0802.3194v3 · doi: 10.48550/arxiv.0802.3194 · pith_short_12: CB7LBAR73ZPT · pith_short_16: CB7LBAR73ZPTD7JQ · pith_short_8: CB7LBAR7

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/CB7LBAR73ZPTD7JQZP5HODLGOA \
  | 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: 107eb0823fde5f31fd30cbfa770d6670392349e7e3ce1fcaaf817c7862ef0c8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "044855e8a2c3af44a26aab3a64b007744acbbed60e7a0c8e9d9d895a90727767",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2008-02-21T19:47:46Z",
    "title_canon_sha256": "b28cf3e0c128a5c74aaf217656c363f695a54eb5e51b607ce2d0918c7e47380e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.3194",
    "kind": "arxiv",
    "version": 3
  }
}