Pith Number

pith:DVLHPDL5

pith:2014:DVLHPDL55DWMVSZIGZEKKNXTTB

not attested not anchored not stored refs pending

NRF2011-EDU001-EL001 EduLab Project Scaling-up Reflections on Using Open Source Physics

Ai Phing Lim, Loo Kang Wee, Sze Yee Lye

arxiv:1409.7989 v3 · 2014-09-29 · 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{DVLHPDL55DWMVSZIGZEKKNXTTB}

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	2026-05-18T02:41:18.221552Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d56778d7de8eccacb283648a536f398689e0dbd44ee012ad829e04407825ef9

Aliases

arxiv: 1409.7989 · arxiv_version: 1409.7989v3 · doi: 10.48550/arxiv.1409.7989 · pith_short_12: DVLHPDL55DWM · pith_short_16: DVLHPDL55DWMVSZI · pith_short_8: DVLHPDL5

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/DVLHPDL55DWMVSZIGZEKKNXTTB \
  | 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: 1d56778d7de8eccacb283648a536f398689e0dbd44ee012ad829e04407825ef9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8364d0db993652826de4d10f58ff94e9aea24b8dbe8c924417375a86850b7b9a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2014-09-29T03:30:02Z",
    "title_canon_sha256": "e1638b7881fdeda5db9fa7531c566e590b8d054fcea21909c052ee162eca63de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.7989",
    "kind": "arxiv",
    "version": 3
  }
}