Pith Number

pith:624YB5MZ

pith:2014:624YB5MZFLRMWAD4SYT3SNUHB3

not attested not anchored not stored refs pending

Open Educational Resources from Performance Task using Video Analysis and Modeling - Tracker and K12 science education framework

Loo Kang Wee

arxiv:1408.5992 v1 · 2014-08-26 · 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{624YB5MZFLRMWAD4SYT3SNUHB3}

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	2026-05-18T02:44:15.256394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6b980f5992ae2cb007c9627b936870ee3f86a6945d20a2b99e88d966079459d

Aliases

arxiv: 1408.5992 · arxiv_version: 1408.5992v1 · doi: 10.48550/arxiv.1408.5992 · pith_short_12: 624YB5MZFLRM · pith_short_16: 624YB5MZFLRMWAD4 · pith_short_8: 624YB5MZ

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/624YB5MZFLRMWAD4SYT3SNUHB3 \
  | 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: f6b980f5992ae2cb007c9627b936870ee3f86a6945d20a2b99e88d966079459d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb300ab57b6e99745c18eb78f846fbe282c7498d09331fc19fd15793c80c7a55",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2014-08-26T03:06:17Z",
    "title_canon_sha256": "43fe3500e6b3fe983a66c44f87ece0ae4c3831abe5d01e321a76c38560e90adb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.5992",
    "kind": "arxiv",
    "version": 1
  }
}