Pith Number

pith:WIFLEWQ5

pith:2017:WIFLEWQ5KFKP2LWBKQ2BCX5BYF

not attested not anchored not stored refs pending

Value added or misattributed? A multi-institution study on the educational benefit of labs for reinforcing physics content

Carl E. Wieman, Jack Olsen, James L. Thomas, N.G. Holmes

arxiv:1705.03580 v1 · 2017-05-10 · physics.ed-ph

Open paper page JSON Open Graph Bundle Merged state 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

✓ 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	2026-05-18T00:06:41.885384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b20ab25a1d5154fd2ec15434115fa1c1463418e13b2d34710b78b551c8cf6f3c

Aliases

arxiv: 1705.03580 · arxiv_version: 1705.03580v1 · doi: 10.48550/arxiv.1705.03580 · pith_short_12: WIFLEWQ5KFKP · pith_short_16: WIFLEWQ5KFKP2LWB · pith_short_8: WIFLEWQ5

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/WIFLEWQ5KFKP2LWBKQ2BCX5BYF \
  | 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: b20ab25a1d5154fd2ec15434115fa1c1463418e13b2d34710b78b551c8cf6f3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4acfa58030bfb6a98e86f56a6f5bc6d1b81700aebefc866cbd797409f6540ee8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2017-05-10T01:43:22Z",
    "title_canon_sha256": "78d166e3e68ea5839ab60aa2a914edff37e78412cc6460d8a9af67756d4bd97d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.03580",
    "kind": "arxiv",
    "version": 1
  }
}