Pith Number

pith:U4SUELS7

pith:2012:U4SUELS7N44UBBSNGAO5HKN2CY

not attested not anchored not stored refs pending

Open Source Energy Simulation for Elementary School

Loo Kang Wee, Sze Yee Lye

arxiv:1211.7153 v1 · 2012-11-30 · physics.ed-ph · physics.comp-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{U4SUELS7N44UBBSNGAO5HKN2CY}

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	2026-05-18T03:39:31.522347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a725422e5f6f3940864d301dd3a9ba1617ca2d10859b6bb8d9ee3175265987b4

Aliases

arxiv: 1211.7153 · arxiv_version: 1211.7153v1 · doi: 10.48550/arxiv.1211.7153 · pith_short_12: U4SUELS7N44U · pith_short_16: U4SUELS7N44UBBSN · pith_short_8: U4SUELS7

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/U4SUELS7N44UBBSNGAO5HKN2CY \
  | 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: a725422e5f6f3940864d301dd3a9ba1617ca2d10859b6bb8d9ee3175265987b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71a966f55b8a0bb06b7c9c0ee46e209886ee836a76080dfa408b897bb090d163",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2012-11-30T04:23:02Z",
    "title_canon_sha256": "55ccac9a3b24dee4e851a7cf1fd25e4ce344f3c4b61a8d90faaabde01a8db1fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.7153",
    "kind": "arxiv",
    "version": 1
  }
}