Pith Number

pith:ZSAJV3AG

pith:2011:ZSAJV3AGG5DMOHAVZ2QPRKWL2O

not attested not anchored not stored refs pending

Efficient Sound Card Based Experimention At Different Levels Of Natural Science Education

Balazs Lupsic, Janos Mellar, Katalin Kopasz, Robert Mingesz, Zoltan gingl

arxiv:1108.1109 v1 · 2011-08-04 · physics.ed-ph · physics.ins-det · physics.pop-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{ZSAJV3AGG5DMOHAVZ2QPRKWL2O}

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	2026-05-18T04:16:12.658350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc809aec063746c71c15cea0f8aacbd39cfd51ea9806ecc354af8ad6a8489203

Aliases

arxiv: 1108.1109 · arxiv_version: 1108.1109v1 · doi: 10.48550/arxiv.1108.1109 · pith_short_12: ZSAJV3AGG5DM · pith_short_16: ZSAJV3AGG5DMOHAV · pith_short_8: ZSAJV3AG

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/ZSAJV3AGG5DMOHAVZ2QPRKWL2O \
  | 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: cc809aec063746c71c15cea0f8aacbd39cfd51ea9806ecc354af8ad6a8489203

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd2c6920f8f33d51b85d8caa7a726532628427ec30456090b3e11945eca7ff2b",
    "cross_cats_sorted": [
      "physics.ins-det",
      "physics.pop-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2011-08-04T14:58:48Z",
    "title_canon_sha256": "d6072b58ba49b175790f0bc0db038d30069b02325d03923d10ecb9fd4dd4ae74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.1109",
    "kind": "arxiv",
    "version": 1
  }
}