Pith Number

pith:J4QGRFG6

pith:2018:J4QGRFG6AZ4CSPAEDF6TPONCR5

not attested not anchored not stored refs pending

Optics undergraduate experiments using smart (and not so smart) phones

A. J. Batista-Leyva, E. Altshuler, F. Pedroso-Camejo, J. Mieres, L. A. Rodr\'iguez, V. L. D\'iaz-Meli\'an, Y. de Armas

arxiv:1811.09546 v2 · 2018-11-23 · 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{J4QGRFG6AZ4CSPAEDF6TPONCR5}

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	2026-05-17T23:59:44.550942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f206894de0678293c04197d37b9a28f5782aff6b23ae29997ce088eaff27ed7

Aliases

arxiv: 1811.09546 · arxiv_version: 1811.09546v2 · doi: 10.48550/arxiv.1811.09546 · pith_short_12: J4QGRFG6AZ4C · pith_short_16: J4QGRFG6AZ4CSPAE · pith_short_8: J4QGRFG6

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/J4QGRFG6AZ4CSPAEDF6TPONCR5 \
  | 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: 4f206894de0678293c04197d37b9a28f5782aff6b23ae29997ce088eaff27ed7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "822534c3c83bd7f4d6f5d485cb5fd95a4f5d532a7570fc7f1434e49f331fca57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2018-11-23T16:32:52Z",
    "title_canon_sha256": "7d5eba3f8ccfeef507669fe478395e279510186e8bbfa0302fbb92920c08f5a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.09546",
    "kind": "arxiv",
    "version": 2
  }
}