Pith Number

pith:IK2KVOQJ

pith:2009:IK2KVOQJFIPLEMFTP6K5T5MQWP

not attested not anchored not stored refs pending

Analyzing Problem Solving Using Math in Physics: Epistemological Framing via Warrants

Edward F. Redish, Thomas J. Bing

arxiv:0908.0028 v1 · 2009-07-31 · 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{IK2KVOQJFIPLEMFTP6K5T5MQWP}

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	2026-05-18T02:12:45.552237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42b4aaba092a1eb230b37f95d9f590b3cd281d22d484ac18f74c6425601085c8

Aliases

arxiv: 0908.0028 · arxiv_version: 0908.0028v1 · doi: 10.48550/arxiv.0908.0028 · pith_short_12: IK2KVOQJFIPL · pith_short_16: IK2KVOQJFIPLEMFT · pith_short_8: IK2KVOQJ

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/IK2KVOQJFIPLEMFTP6K5T5MQWP \
  | 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: 42b4aaba092a1eb230b37f95d9f590b3cd281d22d484ac18f74c6425601085c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a026767f0026ead439aeeb1bfbf5c8ade9abdea68ed277b7647c07a605f4255a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2009-07-31T23:54:56Z",
    "title_canon_sha256": "ba53fc41e4a0b0883724b1edd554591d96420e45b78dbec68600845b9a02e0a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0028",
    "kind": "arxiv",
    "version": 1
  }
}