Pith Number

pith:MCL6Y6T4

pith:2017:MCL6Y6T4BGK2KR7KGWOQC3GADI

not attested not anchored not stored refs pending

Instructor perspectives on iteration during upper-division optics lab activities

Dimitri R. Dounas-Frazer, H. J. Lewandowski, Jacob T. Stanley

arxiv:1706.07116 v1 · 2017-06-21 · 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{MCL6Y6T4BGK2KR7KGWOQC3GADI}

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	2026-05-18T00:14:56.914294Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6097ec7a7c0995a547ea359d016cc01a39e8fa3736d70b2aa131e04f94b4d701

Aliases

arxiv: 1706.07116 · arxiv_version: 1706.07116v1 · doi: 10.48550/arxiv.1706.07116 · pith_short_12: MCL6Y6T4BGK2 · pith_short_16: MCL6Y6T4BGK2KR7K · pith_short_8: MCL6Y6T4

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/MCL6Y6T4BGK2KR7KGWOQC3GADI \
  | 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: 6097ec7a7c0995a547ea359d016cc01a39e8fa3736d70b2aa131e04f94b4d701

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d1955703537a79b56b3bd4e32b87709028c1536c2676f80ca6a60f65366018d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2017-06-21T20:41:49Z",
    "title_canon_sha256": "871a5fd8a4bb27fbc91e70e70c6d4794bd93085db654a509f691fce54b971c42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.07116",
    "kind": "arxiv",
    "version": 1
  }
}