Pith Number

pith:QTLWXKJ7

pith:2013:QTLWXKJ7MZRTF4ZOZJQHVUP2G3

not attested not anchored not stored refs pending

Open Source Physics

Loo Kang Wee

arxiv:1308.2614 v1 · 2013-08-12 · 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{QTLWXKJ7MZRTF4ZOZJQHVUP2G3}

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	2026-05-18T03:16:06.969010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84d76ba93f666332f32eca607ad1fa36feec3cbeaf89f890701394c2a3f6644a

Aliases

arxiv: 1308.2614 · arxiv_version: 1308.2614v1 · doi: 10.48550/arxiv.1308.2614 · pith_short_12: QTLWXKJ7MZRT · pith_short_16: QTLWXKJ7MZRTF4ZO · pith_short_8: QTLWXKJ7

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/QTLWXKJ7MZRTF4ZOZJQHVUP2G3 \
  | 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: 84d76ba93f666332f32eca607ad1fa36feec3cbeaf89f890701394c2a3f6644a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a1511598242d0f24dca5849dd003e2c6cbb8d40adc0d5b24d9cd32ac8a1890f",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2013-08-12T16:23:50Z",
    "title_canon_sha256": "953ef081b01917ada0a62ac65262f90e504ffd54045c733b50ac0237f581adcb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2614",
    "kind": "arxiv",
    "version": 1
  }
}