Pith Number

pith:BZQHM24L

pith:2013:BZQHM24L6YSAJIEU42WAJKW2BM

not attested not anchored not stored refs pending

Entropy and spontaneity in an introductory physics course for life science students

Benjamin D. Geller, Benjamin W. Dreyfus, Chandra Turpen, Edward F. Redish, Julia Gouvea, Vashti Sawtelle

arxiv:1308.5433 v1 · 2013-08-25 · 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{BZQHM24L6YSAJIEU42WAJKW2BM}

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	2026-05-18T02:53:08.148124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e60766b8bf62404a094e6ac04aada0b232ba5fef5491c05c1faed72971cbe5d

Aliases

arxiv: 1308.5433 · arxiv_version: 1308.5433v1 · doi: 10.48550/arxiv.1308.5433 · pith_short_12: BZQHM24L6YSA · pith_short_16: BZQHM24L6YSAJIEU · pith_short_8: BZQHM24L

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/BZQHM24L6YSAJIEU42WAJKW2BM \
  | 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: 0e60766b8bf62404a094e6ac04aada0b232ba5fef5491c05c1faed72971cbe5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49fd0bf736312b60747b46789fff2c6324beaa557b84dbf4559b43aea2ad01dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2013-08-25T18:36:04Z",
    "title_canon_sha256": "5dc08f6a18e69a0e6f4b90d61c6e93a00fa7af0229b24631399dcd9391e79501"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.5433",
    "kind": "arxiv",
    "version": 1
  }
}