Pith Number

pith:5CJIYNIN

pith:2009:5CJIYNINJKWKKY64EXUHNJOWQQ

not attested not anchored not stored refs pending

High School Class for Gifted Pupils in Physics and Sciences and Pupils` Skills Measured by Standard and Pisa Test

D. Pavlovic-Babic, G. S. Djordjevic

arxiv:0912.1042 v1 · 2009-12-05 · physics.ed-ph · physics.soc-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{5CJIYNINJKWKKY64EXUHNJOWQQ}

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	2026-05-18T02:10:26.237846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8928c350d4aaca563dc25e876a5d684045f7fcd9ccf5ec5d28359f1f7cd60ed

Aliases

arxiv: 0912.1042 · arxiv_version: 0912.1042v1 · doi: 10.48550/arxiv.0912.1042 · pith_short_12: 5CJIYNINJKWK · pith_short_16: 5CJIYNINJKWKKY64 · pith_short_8: 5CJIYNIN

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/5CJIYNINJKWKKY64EXUHNJOWQQ \
  | 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: e8928c350d4aaca563dc25e876a5d684045f7fcd9ccf5ec5d28359f1f7cd60ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca66e5a26e555142e7d7f3cd02a1b47ffc59e912ff523a5025eebafc3c5c5450",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2009-12-05T17:52:48Z",
    "title_canon_sha256": "718ca751b68b4a49c890b4af5dbd279814e36bf344b2c9321f67e2d75314fe32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1042",
    "kind": "arxiv",
    "version": 1
  }
}