Pith Number

pith:EKA7ILIB

pith:2015:EKA7ILIBIVETJE5MMW5R7RWM5R

not attested not anchored not stored refs pending

Teaching Critical Thinking

Carl E. Wieman, D.A. Bonn, N.G. Holmes

arxiv:1508.04870 v1 · 2015-08-20 · physics.ed-ph

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T01:35:00.378882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2281f42d0145493493ac65bb1fc6ccec52623950f5ac32a108b9b8b9ae0b6a59

Aliases

arxiv: 1508.04870 · arxiv_version: 1508.04870v1 · doi: 10.48550/arxiv.1508.04870

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/EKA7ILIBIVETJE5MMW5R7RWM5R \
  | 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: 2281f42d0145493493ac65bb1fc6ccec52623950f5ac32a108b9b8b9ae0b6a59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87f2595788a829eab6413dea49b25375df0f2b6c8bac668f7ac380cccea88d9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2015-08-20T03:51:42Z",
    "title_canon_sha256": "a6f3bfe08b7d56227a3bc7c3ac3aeff867fec3d887f1843cc5d57ac96f690a4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04870",
    "kind": "arxiv",
    "version": 1
  }
}