Pith Number

pith:UOZCR73U

pith:2015:UOZCR73U2YD3ZNLD7Z25S2FSAR

not attested not anchored not stored refs pending

A Case Study of Open Source Physics (OSP) Learning Community (LC)

Loo Kang Wee, Lyna Kwan

arxiv:1508.05197 v1 · 2015-08-21 · 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{UOZCR73U2YD3ZNLD7Z25S2FSAR}

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	2026-05-18T01:34:56.462302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3b228ff74d607bcb563fe75d968b20450457be03ffbe7fe10af4b2c5419e36b

Aliases

arxiv: 1508.05197 · arxiv_version: 1508.05197v1 · doi: 10.48550/arxiv.1508.05197 · pith_short_12: UOZCR73U2YD3 · pith_short_16: UOZCR73U2YD3ZNLD · pith_short_8: UOZCR73U

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/UOZCR73U2YD3ZNLD7Z25S2FSAR \
  | 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: a3b228ff74d607bcb563fe75d968b20450457be03ffbe7fe10af4b2c5419e36b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ebf71f891db196c57f421d117122f621c84d5a7bb01eee4a77f248032d52462",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2015-08-21T07:56:48Z",
    "title_canon_sha256": "6bb1008644a64961a76cd4cde792e031d04d8a51b0a7972063d6e0d675daf9ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.05197",
    "kind": "arxiv",
    "version": 1
  }
}